Merge pull request #12499 from Kelebek1/time

Rework time services

externals/CMakeLists.txt

@@ -178,6 +178,9 @@ if (NOT TARGET stb::headers)
     add_library(stb::headers ALIAS stb)
 endif()
 
+add_library(tz tz/tz/tz.cpp)
+target_include_directories(tz PUBLIC ./tz)
+
 add_library(bc_decoder bc_decoder/bc_decoder.cpp)
 target_include_directories(bc_decoder PUBLIC ./bc_decoder)
 

externals/tz/tz/tz.cpp

@@ -0,0 +1,1636 @@
+// SPDX-FileCopyrightText: 2023 yuzu Emulator Project
+// SPDX-FileCopyrightText: 1996 Arthur David Olson
+// SPDX-License-Identifier: BSD-2-Clause
+
+#include <climits>
+#include <cstring>
+#include <ctime>
+
+#include "tz.h"
+
+namespace Tz {
+
+namespace {
+#define EINVAL 22
+
+static Rule gmtmem{};
+static Rule* const gmtptr = &gmtmem;
+
+struct TzifHeader {
+    std::array<char, 4> tzh_magic; // "TZif"
+    std::array<char, 1> tzh_version;
+    std::array<char, 15> tzh_reserved;
+    std::array<char, 4> tzh_ttisutcnt;
+    std::array<char, 4> tzh_ttisstdcnt;
+    std::array<char, 4> tzh_leapcnt;
+    std::array<char, 4> tzh_timecnt;
+    std::array<char, 4> tzh_typecnt;
+    std::array<char, 4> tzh_charcnt;
+};
+static_assert(sizeof(TzifHeader) == 0x2C, "TzifHeader has the wrong size!");
+
+struct local_storage {
+    // Binary layout:
+    // char buf[2 * sizeof(TzifHeader) + 2 * sizeof(Rule) + 4 * TZ_MAX_TIMES];
+    std::span<const u8> binary;
+    Rule state;
+};
+static local_storage tzloadbody_local_storage;
+
+enum rtype : s32 {
+    JULIAN_DAY = 0,
+    DAY_OF_YEAR = 1,
+    MONTH_NTH_DAY_OF_WEEK = 2,
+};
+
+struct tzrule {
+    rtype r_type;
+    int r_day;
+    int r_week;
+    int r_mon;
+    s64 r_time;
+};
+static_assert(sizeof(tzrule) == 0x18, "tzrule has the wrong size!");
+
+constexpr static char UNSPEC[] = "-00";
+constexpr static char TZDEFRULESTRING[] = ",M3.2.0,M11.1.0";
+
+enum {
+    SECSPERMIN = 60,
+    MINSPERHOUR = 60,
+    SECSPERHOUR = SECSPERMIN * MINSPERHOUR,
+    HOURSPERDAY = 24,
+    DAYSPERWEEK = 7,
+    DAYSPERNYEAR = 365,
+    DAYSPERLYEAR = DAYSPERNYEAR + 1,
+    MONSPERYEAR = 12,
+    YEARSPERREPEAT = 400 /* years before a Gregorian repeat */
+};
+
+#define SECSPERDAY ((s64)SECSPERHOUR * HOURSPERDAY)
+
+#define DAYSPERREPEAT ((s64)400 * 365 + 100 - 4 + 1)
+#define SECSPERREPEAT ((int_fast64_t)DAYSPERREPEAT * SECSPERDAY)
+#define AVGSECSPERYEAR (SECSPERREPEAT / YEARSPERREPEAT)
+
+enum {
+    TM_SUNDAY,
+    TM_MONDAY,
+    TM_TUESDAY,
+    TM_WEDNESDAY,
+    TM_THURSDAY,
+    TM_FRIDAY,
+    TM_SATURDAY,
+};
+
+enum {
+    TM_JANUARY,
+    TM_FEBRUARY,
+    TM_MARCH,
+    TM_APRIL,
+    TM_MAY,
+    TM_JUNE,
+    TM_JULY,
+    TM_AUGUST,
+    TM_SEPTEMBER,
+    TM_OCTOBER,
+    TM_NOVEMBER,
+    TM_DECEMBER,
+};
+
+constexpr s32 TM_YEAR_BASE = 1900;
+constexpr s32 TM_WDAY_BASE = TM_MONDAY;
+constexpr s32 EPOCH_YEAR = 1970;
+constexpr s32 EPOCH_WDAY = TM_THURSDAY;
+
+#define isleap(y) (((y) % 4) == 0 && (((y) % 100) != 0 || ((y) % 400) == 0))
+
+static constexpr std::array<std::array<int, MONSPERYEAR>, 2> mon_lengths = { {
+    {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31},
+    {31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31},
+} };
+
+static constexpr std::array<int, 2> year_lengths = {
+    DAYSPERNYEAR,
+    DAYSPERLYEAR,
+};
+
+constexpr static time_t leaps_thru_end_of_nonneg(time_t y) {
+    return y / 4 - y / 100 + y / 400;
+}
+
+constexpr static time_t leaps_thru_end_of(time_t y) {
+    return (y < 0 ? -1 - leaps_thru_end_of_nonneg(-1 - y) : leaps_thru_end_of_nonneg(y));
+}
+
+#define TWOS_COMPLEMENT(t) ((t) ~(t)0 < 0)
+
+s32 detzcode(const char* const codep) {
+    s32 result;
+    int i;
+    s32 one = 1;
+    s32 halfmaxval = one << (32 - 2);
+    s32 maxval = halfmaxval - 1 + halfmaxval;
+    s32 minval = -1 - maxval;
+
+    result = codep[0] & 0x7f;
+    for (i = 1; i < 4; ++i) {
+        result = (result << 8) | (codep[i] & 0xff);
+    }
+
+    if (codep[0] & 0x80) {
+        /* Do two's-complement negation even on non-two's-complement machines.
+            If the result would be minval - 1, return minval.  */
+        result -= !TWOS_COMPLEMENT(s32) && result != 0;
+        result += minval;
+    }
+    return result;
+}
+
+int_fast64_t detzcode64(const char* const codep) {
+    int_fast64_t result;
+    int i;
+    int_fast64_t one = 1;
+    int_fast64_t halfmaxval = one << (64 - 2);
+    int_fast64_t maxval = halfmaxval - 1 + halfmaxval;
+    int_fast64_t minval = -static_cast<int_fast64_t>(TWOS_COMPLEMENT(int_fast64_t)) - maxval;
+
+    result = codep[0] & 0x7f;
+    for (i = 1; i < 8; ++i) {
+        result = (result << 8) | (codep[i] & 0xff);
+    }
+
+    if (codep[0] & 0x80) {
+        /* Do two's-complement negation even on non-two's-complement machines.
+            If the result would be minval - 1, return minval.  */
+        result -= !TWOS_COMPLEMENT(int_fast64_t) && result != 0;
+        result += minval;
+    }
+    return result;
+}
+
+/* Initialize *S to a value based on UTOFF, ISDST, and DESIGIDX.  */
+constexpr void init_ttinfo(ttinfo* s, s64 utoff, bool isdst, int desigidx) {
+    s->tt_utoff = static_cast<s32>(utoff);
+    s->tt_isdst = isdst;
+    s->tt_desigidx = desigidx;
+    s->tt_ttisstd = false;
+    s->tt_ttisut = false;
+}
+
+/* Return true if SP's time type I does not specify local time.  */
+bool ttunspecified(struct Rule const* sp, int i) {
+    char const* abbr = &sp->chars[sp->ttis[i].tt_desigidx];
+    /* memcmp is likely faster than strcmp, and is safe due to CHARS_EXTRA.  */
+    return memcmp(abbr, UNSPEC, sizeof(UNSPEC)) == 0;
+}
+
+bool typesequiv(const Rule* sp, int a, int b) {
+    bool result;
+
+    if (sp == nullptr || a < 0 || a >= sp->typecnt || b < 0 || b >= sp->typecnt) {
+        result = false;
+    }
+    else {
+        /* Compare the relevant members of *AP and *BP.
+        Ignore tt_ttisstd and tt_ttisut, as they are
+        irrelevant now and counting them could cause
+        sp->goahead to mistakenly remain false.  */
+        const ttinfo* ap = &sp->ttis[a];
+        const ttinfo* bp = &sp->ttis[b];
+        result = (ap->tt_utoff == bp->tt_utoff && ap->tt_isdst == bp->tt_isdst &&
+            (strcmp(&sp->chars[ap->tt_desigidx], &sp->chars[bp->tt_desigidx]) == 0));
+    }
+    return result;
+}
+
+constexpr const char* getqzname(const char* strp, const int delim) {
+    int c;
+
+    while ((c = *strp) != '\0' && c != delim) {
+        ++strp;
+    }
+    return strp;
+}
+
+/* Is C an ASCII digit?  */
+constexpr bool is_digit(char c) {
+    return '0' <= c && c <= '9';
+}
+
+/*
+** Given a pointer into a timezone string, scan until a character that is not
+** a valid character in a time zone abbreviation is found.
+** Return a pointer to that character.
+*/
+
+constexpr const char* getzname(const char* strp) {
+    char c;
+
+    while ((c = *strp) != '\0' && !is_digit(c) && c != ',' && c != '-' && c != '+') {
+        ++strp;
+    }
+    return strp;
+}
+
+static const char* getnum(const char* strp, int* const nump, const int min, const int max) {
+    char c;
+    int num;
+
+    if (strp == nullptr || !is_digit(c = *strp)) {
+        return nullptr;
+    }
+    num = 0;
+    do {
+        num = num * 10 + (c - '0');
+        if (num > max) {
+            return nullptr; /* illegal value */
+        }
+        c = *++strp;
+    } while (is_digit(c));
+    if (num < min) {
+        return nullptr; /* illegal value */
+    }
+    *nump = num;
+    return strp;
+}
+
+/*
+** Given a pointer into a timezone string, extract a number of seconds,
+** in hh[:mm[:ss]] form, from the string.
+** If any error occurs, return NULL.
+** Otherwise, return a pointer to the first character not part of the number
+** of seconds.
+*/
+
+const char* getsecs(const char* strp, s64* const secsp) {
+    int num;
+    s64 secsperhour = SECSPERHOUR;
+
+    /*
+    ** 'HOURSPERDAY * DAYSPERWEEK - 1' allows quasi-Posix rules like
+    ** "M10.4.6/26", which does not conform to Posix,
+    ** but which specifies the equivalent of
+    ** "02:00 on the first Sunday on or after 23 Oct".
+    */
+    strp = getnum(strp, &num, 0, HOURSPERDAY * DAYSPERWEEK - 1);
+    if (strp == nullptr) {
+        return nullptr;
+    }
+    *secsp = num * secsperhour;
+    if (*strp == ':') {
+        ++strp;
+        strp = getnum(strp, &num, 0, MINSPERHOUR - 1);
+        if (strp == nullptr) {
+            return nullptr;
+        }
+        *secsp += num * SECSPERMIN;
+        if (*strp == ':') {
+            ++strp;
+            /* 'SECSPERMIN' allows for leap seconds.  */
+            strp = getnum(strp, &num, 0, SECSPERMIN);
+            if (strp == nullptr) {
+                return nullptr;
+            }
+            *secsp += num;
+        }
+    }
+    return strp;
+}
+
+/*
+** Given a pointer into a timezone string, extract an offset, in
+** [+-]hh[:mm[:ss]] form, from the string.
+** If any error occurs, return NULL.
+** Otherwise, return a pointer to the first character not part of the time.
+*/
+
+const char* getoffset(const char* strp, s64* const offsetp) {
+    bool neg = false;
+
+    if (*strp == '-') {
+        neg = true;
+        ++strp;
+    }
+    else if (*strp == '+') {
+        ++strp;
+    }
+    strp = getsecs(strp, offsetp);
+    if (strp == nullptr) {
+        return nullptr; /* illegal time */
+    }
+    if (neg) {
+        *offsetp = -*offsetp;
+    }
+    return strp;
+}
+
+constexpr const char* getrule(const char* strp, tzrule* const rulep) {
+    if (*strp == 'J') {
+        /*
+        ** Julian day.
+        */
+        rulep->r_type = JULIAN_DAY;
+        ++strp;
+        strp = getnum(strp, &rulep->r_day, 1, DAYSPERNYEAR);
+    }
+    else if (*strp == 'M') {
+        /*
+        ** Month, week, day.
+        */
+        rulep->r_type = MONTH_NTH_DAY_OF_WEEK;
+        ++strp;
+        strp = getnum(strp, &rulep->r_mon, 1, MONSPERYEAR);
+        if (strp == nullptr) {
+            return nullptr;
+        }
+        if (*strp++ != '.') {
+            return nullptr;
+        }
+        strp = getnum(strp, &rulep->r_week, 1, 5);
+        if (strp == nullptr) {
+            return nullptr;
+        }
+        if (*strp++ != '.') {
+            return nullptr;
+        }
+        strp = getnum(strp, &rulep->r_day, 0, DAYSPERWEEK - 1);
+    }
+    else if (is_digit(*strp)) {
+        /*
+        ** Day of year.
+        */
+        rulep->r_type = DAY_OF_YEAR;
+        strp = getnum(strp, &rulep->r_day, 0, DAYSPERLYEAR - 1);
+    }
+    else {
+        return nullptr;
+    } /* invalid format */
+    if (strp == nullptr) {
+        return nullptr;
+    }
+    if (*strp == '/') {
+        /*
+        ** Time specified.
+        */
+        ++strp;
+        strp = getoffset(strp, &rulep->r_time);
+    }
+    else {
+        rulep->r_time = 2 * SECSPERHOUR; /* default = 2:00:00 */
+    }
+    return strp;
+}
+
+constexpr bool increment_overflow(int* ip, int j) {
+    int const i = *ip;
+
+    /*
+    ** If i >= 0 there can only be overflow if i + j > INT_MAX
+    ** or if j > INT_MAX - i; given i >= 0, INT_MAX - i cannot overflow.
+    ** If i < 0 there can only be overflow if i + j < INT_MIN
+    ** or if j < INT_MIN - i; given i < 0, INT_MIN - i cannot overflow.
+    */
+    if ((i >= 0) ? (j > INT_MAX - i) : (j < INT_MIN - i)) {
+        return true;
+    }
+    *ip += j;
+    return false;
+}
+
+constexpr bool increment_overflow32(s64* const lp, int const m) {
+    s64 const l = *lp;
+
+    if ((l >= 0) ? (m > INT_FAST32_MAX - l) : (m < INT_FAST32_MIN - l))
+        return true;
+    *lp += m;
+    return false;
+}
+
+constexpr bool increment_overflow_time(time_t* tp, s64 j) {
+    /*
+    ** This is like
+    ** 'if (! (TIME_T_MIN <= *tp + j && *tp + j <= TIME_T_MAX)) ...',
+    ** except that it does the right thing even if *tp + j would overflow.
+    */
+    if (!(j < 0 ? (std::is_signed_v<time_t> ? TIME_T_MIN - j <= *tp : -1 - j < *tp)
+        : *tp <= TIME_T_MAX - j)) {
+        return true;
+    }
+    *tp += j;
+    return false;
+}
+
+CalendarTimeInternal* timesub(const time_t* timep, s64 offset, const Rule* sp,
+    CalendarTimeInternal* tmp) {
+    time_t tdays;
+    const int* ip;
+    s64 idays, rem, dayoff, dayrem;
+    time_t y;
+
+    /* Calculate the year, avoiding integer overflow even if
+        time_t is unsigned.  */
+    tdays = *timep / SECSPERDAY;
+    rem = *timep % SECSPERDAY;
+    rem += offset % SECSPERDAY + 3 * SECSPERDAY;
+    dayoff = offset / SECSPERDAY + rem / SECSPERDAY - 3;
+    rem %= SECSPERDAY;
+    /* y = (EPOCH_YEAR
+            + floor((tdays + dayoff) / DAYSPERREPEAT) * YEARSPERREPEAT),
+        sans overflow.  But calculate against 1570 (EPOCH_YEAR -
+        YEARSPERREPEAT) instead of against 1970 so that things work
+        for localtime values before 1970 when time_t is unsigned.  */
+    dayrem = tdays % DAYSPERREPEAT;
+    dayrem += dayoff % DAYSPERREPEAT;
+    y = (EPOCH_YEAR - YEARSPERREPEAT +
+        ((1ull + dayoff / DAYSPERREPEAT + dayrem / DAYSPERREPEAT - ((dayrem % DAYSPERREPEAT) < 0) +
+            tdays / DAYSPERREPEAT) *
+            YEARSPERREPEAT));
+        /* idays = (tdays + dayoff) mod DAYSPERREPEAT, sans overflow.  */
+    idays = tdays % DAYSPERREPEAT;
+    idays += dayoff % DAYSPERREPEAT + 2 * DAYSPERREPEAT;
+    idays %= DAYSPERREPEAT;
+    /* Increase Y and decrease IDAYS until IDAYS is in range for Y.  */
+    while (year_lengths[isleap(y)] <= idays) {
+        s64 tdelta = idays / DAYSPERLYEAR;
+        s64 ydelta = tdelta + !tdelta;
+        time_t newy = y + ydelta;
+        int leapdays;
+        leapdays = static_cast<s32>(leaps_thru_end_of(newy - 1) - leaps_thru_end_of(y - 1));
+        idays -= ydelta * DAYSPERNYEAR;
+        idays -= leapdays;
+        y = newy;
+    }
+
+    if constexpr (!std::is_signed_v<time_t> && y < TM_YEAR_BASE) {
+        int signed_y = static_cast<s32>(y);
+        tmp->tm_year = signed_y - TM_YEAR_BASE;
+    }
+    else if ((!std::is_signed_v<time_t> || std::numeric_limits<s32>::min() + TM_YEAR_BASE <= y) &&
+        y - TM_YEAR_BASE <= std::numeric_limits<s32>::max()) {
+        tmp->tm_year = static_cast<s32>(y - TM_YEAR_BASE);
+    }
+    else {
+        // errno = EOVERFLOW;
+        return nullptr;
+    }
+
+    tmp->tm_yday = static_cast<s32>(idays);
+    /*
+    ** The "extra" mods below avoid overflow problems.
+    */
+    tmp->tm_wday = static_cast<s32>(
+        TM_WDAY_BASE + ((tmp->tm_year % DAYSPERWEEK) * (DAYSPERNYEAR % DAYSPERWEEK)) +
+        leaps_thru_end_of(y - 1) - leaps_thru_end_of(TM_YEAR_BASE - 1) + idays);
+    tmp->tm_wday %= DAYSPERWEEK;
+    if (tmp->tm_wday < 0) {
+        tmp->tm_wday += DAYSPERWEEK;
+    }
+    tmp->tm_hour = static_cast<s32>(rem / SECSPERHOUR);
+    rem %= SECSPERHOUR;
+    tmp->tm_min = static_cast<s32>(rem / SECSPERMIN);
+    tmp->tm_sec = static_cast<s32>(rem % SECSPERMIN);
+
+    ip = mon_lengths[isleap(y)].data();
+    for (tmp->tm_mon = 0; idays >= ip[tmp->tm_mon]; ++(tmp->tm_mon)) {
+        idays -= ip[tmp->tm_mon];
+    }
+    tmp->tm_mday = static_cast<s32>(idays + 1);
+    tmp->tm_isdst = 0;
+    return tmp;
+}
+
+CalendarTimeInternal* gmtsub([[maybe_unused]] Rule const* sp, time_t const* timep,
+    s64 offset, CalendarTimeInternal* tmp) {
+    CalendarTimeInternal* result;
+
+    result = timesub(timep, offset, gmtptr, tmp);
+    return result;
+}
+
+CalendarTimeInternal* localsub(Rule const* sp, time_t const* timep, s64 setname,
+    CalendarTimeInternal* const tmp) {
+    const ttinfo* ttisp;
+    int i;
+    CalendarTimeInternal* result;
+    const time_t t = *timep;
+
+    if (sp == nullptr) {
+        /* Don't bother to set tzname etc.; tzset has already done it.  */
+        return gmtsub(gmtptr, timep, 0, tmp);
+    }
+    if ((sp->goback && t < sp->ats[0]) || (sp->goahead && t > sp->ats[sp->timecnt - 1])) {
+        time_t newt;
+        time_t seconds;
+        time_t years;
+
+        if (t < sp->ats[0]) {
+            seconds = sp->ats[0] - t;
+        }
+        else {
+            seconds = t - sp->ats[sp->timecnt - 1];
+        }
+        --seconds;
+
+        /* Beware integer overflow, as SECONDS might
+            be close to the maximum time_t.  */
+        years = seconds / SECSPERREPEAT * YEARSPERREPEAT;
+        seconds = years * AVGSECSPERYEAR;
+        years += YEARSPERREPEAT;
+        if (t < sp->ats[0]) {
+            newt = t + seconds + SECSPERREPEAT;
+        }
+        else {
+            newt = t - seconds - SECSPERREPEAT;
+        }
+
+        if (newt < sp->ats[0] || newt > sp->ats[sp->timecnt - 1]) {
+            return nullptr; /* "cannot happen" */
+        }
+        result = localsub(sp, &newt, setname, tmp);
+        if (result) {
+            int_fast64_t newy;
+
+            newy = result->tm_year;
+            if (t < sp->ats[0]) {
+                newy -= years;
+            }
+            else {
+                newy += years;
+            }
+            if (!(std::numeric_limits<s32>::min() <= newy &&
+                newy <= std::numeric_limits<s32>::max())) {
+                return nullptr;
+            }
+            result->tm_year = static_cast<s32>(newy);
+        }
+        return result;
+    }
+    if (sp->timecnt == 0 || t < sp->ats[0]) {
+        i = sp->defaulttype;
+    }
+    else {
+        int lo = 1;
+        int hi = sp->timecnt;
+
+        while (lo < hi) {
+            int mid = (lo + hi) >> 1;
+
+            if (t < sp->ats[mid])
+                hi = mid;
+            else
+                lo = mid + 1;
+        }
+        i = sp->types[lo - 1];
+    }
+    ttisp = &sp->ttis[i];
+    /*
+    ** To get (wrong) behavior that's compatible with System V Release 2.0
+    ** you'd replace the statement below with
+    **	t += ttisp->tt_utoff;
+    **	timesub(&t, 0L, sp, tmp);
+    */
+    result = timesub(&t, ttisp->tt_utoff, sp, tmp);
+    if (result) {
+        result->tm_isdst = ttisp->tt_isdst;
+
+        if (ttisp->tt_desigidx > static_cast<s32>(sp->chars.size() - CHARS_EXTRA)) {
+            return nullptr;
+        }
+
+        auto num_chars_to_copy{
+            std::min(sp->chars.size() - ttisp->tt_desigidx, result->tm_zone.size()) - 1 };
+        std::strncpy(result->tm_zone.data(), &sp->chars[ttisp->tt_desigidx], num_chars_to_copy);
+        result->tm_zone[num_chars_to_copy] = '\0';
+
+        auto original_size{ std::strlen(&sp->chars[ttisp->tt_desigidx]) };
+        if (original_size > num_chars_to_copy) {
+            return nullptr;
+        }
+
+        result->tm_utoff = ttisp->tt_utoff;
+        result->time_index = i;
+    }
+    return result;
+}
+
+/*
+** Given a year, a rule, and the offset from UT at the time that rule takes
+** effect, calculate the year-relative time that rule takes effect.
+*/
+
+constexpr s64 transtime(const int year, const tzrule* const rulep,
+    const s64 offset) {
+    bool leapyear;
+    s64 value;
+    int i;
+    int d, m1, yy0, yy1, yy2, dow;
+
+    leapyear = isleap(year);
+    switch (rulep->r_type) {
+    case JULIAN_DAY:
+        /*
+        ** Jn - Julian day, 1 == January 1, 60 == March 1 even in leap
+        ** years.
+        ** In non-leap years, or if the day number is 59 or less, just
+        ** add SECSPERDAY times the day number-1 to the time of
+        ** January 1, midnight, to get the day.
+        */
+        value = (rulep->r_day - 1) * SECSPERDAY;
+        if (leapyear && rulep->r_day >= 60) {
+            value += SECSPERDAY;
+        }
+        break;
+
+    case DAY_OF_YEAR:
+        /*
+        ** n - day of year.
+        ** Just add SECSPERDAY times the day number to the time of
+        ** January 1, midnight, to get the day.
+        */
+        value = rulep->r_day * SECSPERDAY;
+        break;
+
+    case MONTH_NTH_DAY_OF_WEEK:
+        /*
+        ** Mm.n.d - nth "dth day" of month m.
+        */
+
+        /*
+        ** Use Zeller's Congruence to get day-of-week of first day of
+        ** month.
+        */
+        m1 = (rulep->r_mon + 9) % 12 + 1;
+        yy0 = (rulep->r_mon <= 2) ? (year - 1) : year;
+        yy1 = yy0 / 100;
+        yy2 = yy0 % 100;
+        dow = ((26 * m1 - 2) / 10 + 1 + yy2 + yy2 / 4 + yy1 / 4 - 2 * yy1) % 7;
+        if (dow < 0) {
+            dow += DAYSPERWEEK;
+        }
+
+        /*
+        ** "dow" is the day-of-week of the first day of the month. Get
+        ** the day-of-month (zero-origin) of the first "dow" day of the
+        ** month.
+        */
+        d = rulep->r_day - dow;
+        if (d < 0) {
+            d += DAYSPERWEEK;
+        }
+        for (i = 1; i < rulep->r_week; ++i) {
+            if (d + DAYSPERWEEK >= mon_lengths[leapyear][rulep->r_mon - 1]) {
+                break;
+            }
+            d += DAYSPERWEEK;
+        }
+
+        /*
+        ** "d" is the day-of-month (zero-origin) of the day we want.
+        */
+        value = d * SECSPERDAY;
+        for (i = 0; i < rulep->r_mon - 1; ++i) {
+            value += mon_lengths[leapyear][i] * SECSPERDAY;
+        }
+        break;
+
+    default:
+        //UNREACHABLE();
+        break;
+    }
+
+    /*
+    ** "value" is the year-relative time of 00:00:00 UT on the day in
+    ** question. To get the year-relative time of the specified local
+    ** time on that day, add the transition time and the current offset
+    ** from UT.
+    */
+    return value + rulep->r_time + offset;
+}
+
+bool tzparse(const char* name, Rule* sp) {
+    const char* stdname{};
+    const char* dstname{};
+    s64 stdoffset;
+    s64 dstoffset;
+    char* cp;
+    ptrdiff_t stdlen;
+    ptrdiff_t dstlen{};
+    ptrdiff_t charcnt;
+    time_t atlo = TIME_T_MIN, leaplo = TIME_T_MIN;
+
+    stdname = name;
+    if (*name == '<') {
+        name++;
+        stdname = name;
+        name = getqzname(name, '>');
+        if (*name != '>') {
+            return false;
+        }
+        stdlen = name - stdname;
+        name++;
+    }
+    else {
+        name = getzname(name);
+        stdlen = name - stdname;
+    }
+    if (!(0 < stdlen && stdlen <= TZNAME_MAXIMUM)) {
+        return false;
+    }
+    name = getoffset(name, &stdoffset);
+    if (name == nullptr) {
+        return false;
+    }
+    charcnt = stdlen + 1;
+    if (charcnt > TZ_MAX_CHARS) {
+        return false;
+    }
+    if (*name != '\0') {
+        if (*name == '<') {
+            dstname = ++name;
+            name = getqzname(name, '>');
+            if (*name != '>')
+                return false;
+            dstlen = name - dstname;
+            name++;
+        }
+        else {
+            dstname = name;
+            name = getzname(name);
+            dstlen = name - dstname; /* length of DST abbr. */
+        }
+        if (!(0 < dstlen && dstlen <= TZNAME_MAXIMUM)) {
+            return false;
+        }
+        charcnt += dstlen + 1;
+        if (charcnt > TZ_MAX_CHARS) {
+            return false;
+        }
+        if (*name != '\0' && *name != ',' && *name != ';') {
+            name = getoffset(name, &dstoffset);
+            if (name == nullptr) {
+                return false;
+            }
+        }
+        else {
+            dstoffset = stdoffset - SECSPERHOUR;
+        }
+        if (*name == '\0') {
+            name = TZDEFRULESTRING;
+        }
+        if (*name == ',' || *name == ';') {
+            struct tzrule start;
+            struct tzrule end;
+            int year;
+            int timecnt;
+            time_t janfirst;
+            s64 janoffset = 0;
+            int yearbeg, yearlim;
+
+            ++name;
+            if ((name = getrule(name, &start)) == nullptr) {
+                return false;
+            }
+            if (*name++ != ',') {
+                return false;
+            }
+            if ((name = getrule(name, &end)) == nullptr) {
+                return false;
+            }
+            if (*name != '\0') {
+                return false;
+            }
+            sp->typecnt = 2; /* standard time and DST */
+            /*
+            ** Two transitions per year, from EPOCH_YEAR forward.
+            */
+            init_ttinfo(&sp->ttis[0], -stdoffset, false, 0);
+            init_ttinfo(&sp->ttis[1], -dstoffset, true, static_cast<s32>(stdlen + 1));
+            sp->defaulttype = 0;
+            timecnt = 0;
+            janfirst = 0;
+            yearbeg = EPOCH_YEAR;
+
+            do {
+                s64 yearsecs = year_lengths[isleap(yearbeg - 1)] * SECSPERDAY;
+                yearbeg--;
+                if (increment_overflow_time(&janfirst, -yearsecs)) {
+                    janoffset = -yearsecs;
+                    break;
+                }
+            } while (atlo < janfirst && EPOCH_YEAR - YEARSPERREPEAT / 2 < yearbeg);
+
+            while (true) {
+                s64 yearsecs = year_lengths[isleap(yearbeg)] * SECSPERDAY;
+                int yearbeg1 = yearbeg;
+                time_t janfirst1 = janfirst;
+                if (increment_overflow_time(&janfirst1, yearsecs) ||
+                    increment_overflow(&yearbeg1, 1) || atlo <= janfirst1) {
+                    break;
+                }
+                yearbeg = yearbeg1;
+                janfirst = janfirst1;
+            }
+
+            yearlim = yearbeg;
+            if (increment_overflow(&yearlim, YEARSPERREPEAT + 1)) {
+                yearlim = INT_MAX;
+            }
+            for (year = yearbeg; year < yearlim; year++) {
+                s64 starttime = transtime(year, &start, stdoffset),
+                    endtime = transtime(year, &end, dstoffset);
+                s64 yearsecs = (year_lengths[isleap(year)] * SECSPERDAY);
+                bool reversed = endtime < starttime;
+                if (reversed) {
+                    s64 swap = starttime;
+                    starttime = endtime;
+                    endtime = swap;
+                }
+                if (reversed || (starttime < endtime && endtime - starttime < yearsecs)) {
+                    if (TZ_MAX_TIMES - 2 < timecnt) {
+                        break;
+                    }
+                    sp->ats[timecnt] = janfirst;
+                    if (!increment_overflow_time(reinterpret_cast<time_t*>(&sp->ats[timecnt]), janoffset + starttime) &&
+                        atlo <= sp->ats[timecnt]) {
+                        sp->types[timecnt++] = !reversed;
+                    }
+                    sp->ats[timecnt] = janfirst;
+                    if (!increment_overflow_time(reinterpret_cast<time_t*>(&sp->ats[timecnt]), janoffset + endtime) &&
+                        atlo <= sp->ats[timecnt]) {
+                        sp->types[timecnt++] = reversed;
+                    }
+                }
+                if (endtime < leaplo) {
+                    yearlim = year;
+                    if (increment_overflow(&yearlim, YEARSPERREPEAT + 1)) {
+                        yearlim = INT_MAX;
+                    }
+                }
+                if (increment_overflow_time(&janfirst, janoffset + yearsecs)) {
+                    break;
+                }
+                janoffset = 0;
+            }
+            sp->timecnt = timecnt;
+            if (!timecnt) {
+                sp->ttis[0] = sp->ttis[1];
+                sp->typecnt = 1; /* Perpetual DST.  */
+            }
+            else if (YEARSPERREPEAT < year - yearbeg) {
+                sp->goback = sp->goahead = true;
+            }
+        }
+        else {
+            s64 theirstdoffset;
+            s64 theirdstoffset;
+            s64 theiroffset;
+            bool isdst;
+            int i;
+            int j;
+
+            if (*name != '\0') {
+                return false;
+            }
+            /*
+            ** Initial values of theirstdoffset and theirdstoffset.
+            */
+            theirstdoffset = 0;
+            for (i = 0; i < sp->timecnt; ++i) {
+                j = sp->types[i];
+                if (!sp->ttis[j].tt_isdst) {
+                    theirstdoffset = -sp->ttis[j].tt_utoff;
+                    break;
+                }
+            }
+            theirdstoffset = 0;
+            for (i = 0; i < sp->timecnt; ++i) {
+                j = sp->types[i];
+                if (sp->ttis[j].tt_isdst) {
+                    theirdstoffset = -sp->ttis[j].tt_utoff;
+                    break;
+                }
+            }
+            /*
+            ** Initially we're assumed to be in standard time.
+            */
+            isdst = false;
+            /*
+            ** Now juggle transition times and types
+            ** tracking offsets as you do.
+            */
+            for (i = 0; i < sp->timecnt; ++i) {
+                j = sp->types[i];
+                sp->types[i] = sp->ttis[j].tt_isdst;
+                if (sp->ttis[j].tt_ttisut) {
+                    /* No adjustment to transition time */
+                }
+                else {
+                    /*
+                    ** If daylight saving time is in
+                    ** effect, and the transition time was
+                    ** not specified as standard time, add
+                    ** the daylight saving time offset to
+                    ** the transition time; otherwise, add
+                    ** the standard time offset to the
+                    ** transition time.
+                    */
+                    /*
+                    ** Transitions from DST to DDST
+                    ** will effectively disappear since
+                    ** POSIX provides for only one DST
+                    ** offset.
+                    */
+                    if (isdst && !sp->ttis[j].tt_ttisstd) {
+                        sp->ats[i] += dstoffset - theirdstoffset;
+                    }
+                    else {
+                        sp->ats[i] += stdoffset - theirstdoffset;
+                    }
+                }
+                theiroffset = -sp->ttis[j].tt_utoff;
+                if (sp->ttis[j].tt_isdst) {
+                    theirdstoffset = theiroffset;
+                }
+                else {
+                    theirstdoffset = theiroffset;
+                }
+            }
+            /*
+            ** Finally, fill in ttis.
+            */
+            init_ttinfo(&sp->ttis[0], -stdoffset, false, 0);
+            init_ttinfo(&sp->ttis[1], -dstoffset, true, static_cast<s32>(stdlen + 1));
+            sp->typecnt = 2;
+            sp->defaulttype = 0;
+        }
+    }
+    else {
+        dstlen = 0;
+        sp->typecnt = 1; /* only standard time */
+        sp->timecnt = 0;
+        init_ttinfo(&sp->ttis[0], -stdoffset, false, 0);
+        sp->defaulttype = 0;
+    }
+    sp->charcnt = static_cast<s32>(charcnt);
+    cp = &sp->chars[0];
+    memcpy(cp, stdname, stdlen);
+    cp += stdlen;
+    *cp++ = '\0';
+    if (dstlen != 0) {
+        memcpy(cp, dstname, dstlen);
+        *(cp + dstlen) = '\0';
+    }
+    return true;
+}
+
+int tzloadbody(Rule* sp, local_storage& local_storage) {
+    int i;
+    int stored;
+    size_t nread{ local_storage.binary.size_bytes() };
+    int tzheadsize = sizeof(struct TzifHeader);
+    TzifHeader header{};
+
+    //ASSERT(local_storage.binary.size_bytes() >= sizeof(TzifHeader));
+    std::memcpy(&header, local_storage.binary.data(), sizeof(TzifHeader));
+
+    sp->goback = sp->goahead = false;
+
+    for (stored = 8; stored <= 8; stored *= 2) {
+        s64 datablock_size;
+        s32 ttisstdcnt = detzcode(header.tzh_ttisstdcnt.data());
+        s32 ttisutcnt = detzcode(header.tzh_ttisutcnt.data());
+        s32 leapcnt = detzcode(header.tzh_leapcnt.data());
+        s32 timecnt = detzcode(header.tzh_timecnt.data());
+        s32 typecnt = detzcode(header.tzh_typecnt.data());
+        s32 charcnt = detzcode(header.tzh_charcnt.data());
+        /* Although tzfile(5) currently requires typecnt to be nonzero,
+            support future formats that may allow zero typecnt
+            in files that have a TZ string and no transitions.  */
+        if (!(0 <= leapcnt && leapcnt < TZ_MAX_LEAPS && 0 <= typecnt && typecnt < TZ_MAX_TYPES &&
+            0 <= timecnt && timecnt < TZ_MAX_TIMES && 0 <= charcnt && charcnt < TZ_MAX_CHARS &&
+            0 <= ttisstdcnt && ttisstdcnt < TZ_MAX_TYPES && 0 <= ttisutcnt &&
+            ttisutcnt < TZ_MAX_TYPES)) {
+            return EINVAL;
+        }
+        datablock_size = (timecnt * stored         /* ats */
+            + timecnt                /* types */
+            + typecnt * 6            /* ttinfos */
+            + charcnt                /* chars */
+            + leapcnt * (stored + 4) /* lsinfos */
+            + ttisstdcnt             /* ttisstds */
+            + ttisutcnt);            /* ttisuts */
+        if (static_cast<s32>(local_storage.binary.size_bytes()) < tzheadsize + datablock_size) {
+            return EINVAL;
+        }
+        if (!((ttisstdcnt == typecnt || ttisstdcnt == 0) &&
+            (ttisutcnt == typecnt || ttisutcnt == 0))) {
+            return EINVAL;
+        }
+
+        char const* p = (const char*)local_storage.binary.data() + tzheadsize;
+
+        sp->timecnt = timecnt;
+        sp->typecnt = typecnt;
+        sp->charcnt = charcnt;
+
+        /* Read transitions, discarding those out of time_t range.
+            But pretend the last transition before TIME_T_MIN
+            occurred at TIME_T_MIN.  */
+        timecnt = 0;
+        for (i = 0; i < sp->timecnt; ++i) {
+            int_fast64_t at = stored == 4 ? detzcode(p) : detzcode64(p);
+            sp->types[i] = at <= TIME_T_MAX;
+            if (sp->types[i]) {
+                time_t attime =
+                    ((std::is_signed_v<time_t> ? at < TIME_T_MIN : at < 0) ? TIME_T_MIN : at);
+                if (timecnt && attime <= sp->ats[timecnt - 1]) {
+                    if (attime < sp->ats[timecnt - 1])
+                        return EINVAL;
+                    sp->types[i - 1] = 0;
+                    timecnt--;
+                }
+                sp->ats[timecnt++] = attime;
+            }
+            p += stored;
+        }
+
+        timecnt = 0;
+        for (i = 0; i < sp->timecnt; ++i) {
+            unsigned char typ = *p++;
+            if (sp->typecnt <= typ) {
+                return EINVAL;
+            }
+            if (sp->types[i]) {
+                sp->types[timecnt++] = typ;
+            }
+        }
+        sp->timecnt = timecnt;
+        for (i = 0; i < sp->typecnt; ++i) {
+            struct ttinfo* ttisp;
+            unsigned char isdst, desigidx;
+
+            ttisp = &sp->ttis[i];
+            ttisp->tt_utoff = detzcode(p);
+            p += 4;
+            isdst = *p++;
+            if (!(isdst < 2)) {
+                return EINVAL;
+            }
+            ttisp->tt_isdst = isdst != 0;
+            desigidx = *p++;
+            if (!(desigidx < sp->charcnt)) {
+                return EINVAL;
+            }
+            ttisp->tt_desigidx = desigidx;
+        }
+        for (i = 0; i < sp->charcnt; ++i) {
+            sp->chars[i] = *p++;
+        }
+        /* Ensure '\0'-terminated, and make it safe to call
+            ttunspecified later.  */
+        memset(&sp->chars[i], 0, CHARS_EXTRA);
+
+        for (i = 0; i < sp->typecnt; ++i) {
+            struct ttinfo* ttisp;
+
+            ttisp = &sp->ttis[i];
+            if (ttisstdcnt == 0) {
+                ttisp->tt_ttisstd = false;
+            }
+            else {
+                if (*(bool*)p != true && *(bool*)p != false) {
+                    return EINVAL;
+                }
+                ttisp->tt_ttisstd = *(bool*)p++;
+            }
+        }
+        for (i = 0; i < sp->typecnt; ++i) {
+            struct ttinfo* ttisp;
+
+            ttisp = &sp->ttis[i];
+            if (ttisutcnt == 0) {
+                ttisp->tt_ttisut = false;
+            }
+            else {
+                if (*(bool*)p != true && *(bool*)p != false) {
+                    return EINVAL;
+                }
+                ttisp->tt_ttisut = *(bool*)p++;
+            }
+        }
+
+        nread += (ptrdiff_t)local_storage.binary.data() - (ptrdiff_t)p;
+        if (nread < 0) {
+            return EINVAL;
+        }
+    }
+
+    std::array<char, 256> buf{};
+    if (nread > buf.size()) {
+        //ASSERT(false);
+        return EINVAL;
+    }
+    memmove(buf.data(), &local_storage.binary[local_storage.binary.size_bytes() - nread], nread);
+
+    if (nread > 2 && buf[0] == '\n' && buf[nread - 1] == '\n' && sp->typecnt + 2 <= TZ_MAX_TYPES) {
+        Rule* ts = &local_storage.state;
+
+        buf[nread - 1] = '\0';
+        if (tzparse(&buf[1], ts) && local_storage.state.typecnt == 2) {
+
+            /* Attempt to reuse existing abbreviations.
+                Without this, America/Anchorage would be right on
+                the edge after 2037 when TZ_MAX_CHARS is 50, as
+                sp->charcnt equals 40 (for LMT AST AWT APT AHST
+                AHDT YST AKDT AKST) and ts->charcnt equals 10
+                (for AKST AKDT).  Reusing means sp->charcnt can
+                stay 40 in this example.  */
+            int gotabbr = 0;
+            int charcnt = sp->charcnt;
+            for (i = 0; i < ts->typecnt; i++) {
+                char* tsabbr = &ts->chars[ts->ttis[i].tt_desigidx];
+                int j;
+                for (j = 0; j < charcnt; j++)
+                    if (strcmp(&sp->chars[j], tsabbr) == 0) {
+                        ts->ttis[i].tt_desigidx = j;
+                        gotabbr++;
+                        break;
+                    }
+                if (!(j < charcnt)) {
+                    int tsabbrlen = static_cast<s32>(strlen(tsabbr));
+                    if (j + tsabbrlen < TZ_MAX_CHARS) {
+                        strcpy(&sp->chars[j], tsabbr);
+                        charcnt = j + tsabbrlen + 1;
+                        ts->ttis[i].tt_desigidx = j;
+                        gotabbr++;
+                    }
+                }
+            }
+            if (gotabbr == ts->typecnt) {
+                sp->charcnt = charcnt;
+
+                /* Ignore any trailing, no-op transitions generated
+                    by zic as they don't help here and can run afoul
+                    of bugs in zic 2016j or earlier.  */
+                while (1 < sp->timecnt &&
+                    (sp->types[sp->timecnt - 1] == sp->types[sp->timecnt - 2])) {
+                    sp->timecnt--;
+                }
+
+                for (i = 0; i < ts->timecnt && sp->timecnt < TZ_MAX_TIMES; i++) {
+                    time_t t = ts->ats[i];
+                    if (0 < sp->timecnt && t <= sp->ats[sp->timecnt - 1]) {
+                        continue;
+                    }
+                    sp->ats[sp->timecnt] = t;
+                    sp->types[sp->timecnt] = static_cast<u8>(sp->typecnt + ts->types[i]);
+                    sp->timecnt++;
+                }
+                for (i = 0; i < ts->typecnt; i++) {
+                    sp->ttis[sp->typecnt++] = ts->ttis[i];
+                }
+            }
+        }
+    }
+    if (sp->typecnt == 0) {
+        return EINVAL;
+    }
+
+    if (sp->timecnt > 1) {
+        if (sp->ats[0] <= TIME_T_MAX - SECSPERREPEAT) {
+            time_t repeatat = sp->ats[0] + SECSPERREPEAT;
+            int repeattype = sp->types[0];
+            for (i = 1; i < sp->timecnt; ++i) {
+                if (sp->ats[i] == repeatat && typesequiv(sp, sp->types[i], repeattype)) {
+                    sp->goback = true;
+                    break;
+                }
+            }
+        }
+        if (TIME_T_MIN + SECSPERREPEAT <= sp->ats[sp->timecnt - 1]) {
+            time_t repeatat = sp->ats[sp->timecnt - 1] - SECSPERREPEAT;
+            int repeattype = sp->types[sp->timecnt - 1];
+            for (i = sp->timecnt - 2; i >= 0; --i) {
+                if (sp->ats[i] == repeatat && typesequiv(sp, sp->types[i], repeattype)) {
+                    sp->goahead = true;
+                    break;
+                }
+            }
+        }
+    }
+
+    /* Infer sp->defaulttype from the data.  Although this default
+        type is always zero for data from recent tzdb releases,
+        things are trickier for data from tzdb 2018e or earlier.
+
+        The first set of heuristics work around bugs in 32-bit data
+        generated by tzdb 2013c or earlier.  The workaround is for
+        zones like Australia/Macquarie where timestamps before the
+        first transition have a time type that is not the earliest
+        standard-time type.  See:
+        https://mm.icann.org/pipermail/tz/2013-May/019368.html */
+    /*
+    ** If type 0 does not specify local time, or is unused in transitions,
+    ** it's the type to use for early times.
+    */
+    for (i = 0; i < sp->timecnt; ++i) {
+        if (sp->types[i] == 0) {
+            break;
+        }
+    }
+    i = i < sp->timecnt && !ttunspecified(sp, 0) ? -1 : 0;
+    /*
+    ** Absent the above,
+    ** if there are transition times
+    ** and the first transition is to a daylight time
+    ** find the standard type less than and closest to
+    ** the type of the first transition.
+    */
+    if (i < 0 && sp->timecnt > 0 && sp->ttis[sp->types[0]].tt_isdst) {
+        i = sp->types[0];
+        while (--i >= 0) {
+            if (!sp->ttis[i].tt_isdst) {
+                break;
+            }
+        }
+    }
+    /* The next heuristics are for data generated by tzdb 2018e or
+        earlier, for zones like EST5EDT where the first transition
+        is to DST.  */
+    /*
+    ** If no result yet, find the first standard type.
+    ** If there is none, punt to type zero.
+    */
+    if (i < 0) {
+        i = 0;
+        while (sp->ttis[i].tt_isdst) {
+            if (++i >= sp->typecnt) {
+                i = 0;
+                break;
+            }
+        }
+    }
+    /* A simple 'sp->defaulttype = 0;' would suffice here if we
+        didn't have to worry about 2018e-or-earlier data.  Even
+        simpler would be to remove the defaulttype member and just
+        use 0 in its place.  */
+    sp->defaulttype = i;
+
+    return 0;
+}
+
+constexpr int tmcomp(const CalendarTimeInternal* const atmp,
+    const CalendarTimeInternal* const btmp) {
+    int result;
+
+    if (atmp->tm_year != btmp->tm_year) {
+        return atmp->tm_year < btmp->tm_year ? -1 : 1;
+    }
+    if ((result = (atmp->tm_mon - btmp->tm_mon)) == 0 &&
+        (result = (atmp->tm_mday - btmp->tm_mday)) == 0 &&
+        (result = (atmp->tm_hour - btmp->tm_hour)) == 0 &&
+        (result = (atmp->tm_min - btmp->tm_min)) == 0) {
+        result = atmp->tm_sec - btmp->tm_sec;
+    }
+    return result;
+}
+
+/* Copy to *DEST from *SRC.  Copy only the members needed for mktime,
+    as other members might not be initialized.  */
+constexpr void mktmcpy(struct CalendarTimeInternal* dest, struct CalendarTimeInternal const* src) {
+    dest->tm_sec = src->tm_sec;
+    dest->tm_min = src->tm_min;
+    dest->tm_hour = src->tm_hour;
+    dest->tm_mday = src->tm_mday;
+    dest->tm_mon = src->tm_mon;
+    dest->tm_year = src->tm_year;
+    dest->tm_isdst = src->tm_isdst;
+    dest->tm_zone = src->tm_zone;
+    dest->tm_utoff = src->tm_utoff;
+    dest->time_index = src->time_index;
+}
+
+constexpr bool normalize_overflow(int* const tensptr, int* const unitsptr, const int base) {
+    int tensdelta;
+
+    tensdelta = (*unitsptr >= 0) ? (*unitsptr / base) : (-1 - (-1 - *unitsptr) / base);
+    *unitsptr -= tensdelta * base;
+    return increment_overflow(tensptr, tensdelta);
+}
+
+constexpr bool normalize_overflow32(s64* tensptr, int* unitsptr, int base) {
+    int tensdelta;
+
+    tensdelta = (*unitsptr >= 0) ? (*unitsptr / base) : (-1 - (-1 - *unitsptr) / base);
+    *unitsptr -= tensdelta * base;
+    return increment_overflow32(tensptr, tensdelta);
+}
+
+int time2sub(time_t* out_time, CalendarTimeInternal* const tmp,
+    CalendarTimeInternal* (*funcp)(Rule const*, time_t const*, s64,
+        CalendarTimeInternal*),
+    Rule const* sp, const s64 offset, bool* okayp, bool do_norm_secs) {
+    int dir;
+    int i, j;
+    int saved_seconds;
+    s64 li;
+    time_t lo;
+    time_t hi;
+    s64 y;
+    time_t newt;
+    time_t t;
+    CalendarTimeInternal yourtm, mytm;
+
+    *okayp = false;
+    mktmcpy(&yourtm, tmp);
+
+    if (do_norm_secs) {
+        if (normalize_overflow(&yourtm.tm_min, &yourtm.tm_sec, SECSPERMIN)) {
+            return 1;
+        }
+    }
+    if (normalize_overflow(&yourtm.tm_hour, &yourtm.tm_min, MINSPERHOUR)) {
+        return 1;
+    }
+    if (normalize_overflow(&yourtm.tm_mday, &yourtm.tm_hour, HOURSPERDAY)) {
+        return 1;
+    }
+    y = yourtm.tm_year;
+    if (normalize_overflow32(&y, &yourtm.tm_mon, MONSPERYEAR)) {
+        return 1;
+    }
+    /*
+    ** Turn y into an actual year number for now.
+    ** It is converted back to an offset from TM_YEAR_BASE later.
+    */
+    if (increment_overflow32(&y, TM_YEAR_BASE)) {
+        return 1;
+    }
+    while (yourtm.tm_mday <= 0) {
+        if (increment_overflow32(&y, -1)) {
+            return 1;
+        }
+        li = y + (1 < yourtm.tm_mon);
+        yourtm.tm_mday += year_lengths[isleap(li)];
+    }
+    while (yourtm.tm_mday > DAYSPERLYEAR) {
+        li = y + (1 < yourtm.tm_mon);
+        yourtm.tm_mday -= year_lengths[isleap(li)];
+        if (increment_overflow32(&y, 1)) {
+            return 1;
+        }
+    }
+    for (;;) {
+        i = mon_lengths[isleap(y)][yourtm.tm_mon];
+        if (yourtm.tm_mday <= i) {
+            break;
+        }
+        yourtm.tm_mday -= i;
+        if (++yourtm.tm_mon >= MONSPERYEAR) {
+            yourtm.tm_mon = 0;
+            if (increment_overflow32(&y, 1)) {
+                return 1;
+            }
+        }
+    }
+
+    if (increment_overflow32(&y, -TM_YEAR_BASE)) {
+        return 1;
+    }
+    if (!(INT_MIN <= y && y <= INT_MAX)) {
+        return 1;
+    }
+    yourtm.tm_year = static_cast<s32>(y);
+
+    if (yourtm.tm_sec >= 0 && yourtm.tm_sec < SECSPERMIN) {
+        saved_seconds = 0;
+    }
+    else if (yourtm.tm_year < EPOCH_YEAR - TM_YEAR_BASE) {
+        /*
+        ** We can't set tm_sec to 0, because that might push the
+        ** time below the minimum representable time.
+        ** Set tm_sec to 59 instead.
+        ** This assumes that the minimum representable time is
+        ** not in the same minute that a leap second was deleted from,
+        ** which is a safer assumption than using 58 would be.
+        */
+        if (increment_overflow(&yourtm.tm_sec, 1 - SECSPERMIN)) {
+            return 1;
+        }
+        saved_seconds = yourtm.tm_sec;
+        yourtm.tm_sec = SECSPERMIN - 1;
+    }
+    else {
+        saved_seconds = yourtm.tm_sec;
+        yourtm.tm_sec = 0;
+    }
+    /*
+    ** Do a binary search (this works whatever time_t's type is).
+    */
+    lo = TIME_T_MIN;
+    hi = TIME_T_MAX;
+    for (;;) {
+        t = lo / 2 + hi / 2;
+        if (t < lo) {
+            t = lo;
+        }
+        else if (t > hi) {
+            t = hi;
+        }
+        if (!funcp(sp, &t, offset, &mytm)) {
+            /*
+            ** Assume that t is too extreme to be represented in
+            ** a struct tm; arrange things so that it is less
+            ** extreme on the next pass.
+            */
+            dir = (t > 0) ? 1 : -1;
+        }
+        else {
+            dir = tmcomp(&mytm, &yourtm);
+        }
+        if (dir != 0) {
+            if (t == lo) {
+                if (t == TIME_T_MAX) {
+                    return 2;
+                }
+                ++t;
+                ++lo;
+            }
+            else if (t == hi) {
+                if (t == TIME_T_MIN) {
+                    return 2;
+                }
+                --t;
+                --hi;
+            }
+            if (lo > hi) {
+                return 2;
+            }
+            if (dir > 0) {
+                hi = t;
+            }
+            else {
+                lo = t;
+            }
+            continue;
+        }
+
+        if (yourtm.tm_isdst < 0 || mytm.tm_isdst == yourtm.tm_isdst) {
+            break;
+        }
+        /*
+        ** Right time, wrong type.
+        ** Hunt for right time, right type.
+        ** It's okay to guess wrong since the guess
+        ** gets checked.
+        */
+        if (sp == nullptr) {
+            return 2;
+        }
+        for (i = sp->typecnt - 1; i >= 0; --i) {
+            if (sp->ttis[i].tt_isdst != static_cast<bool>(yourtm.tm_isdst)) {
+                continue;
+            }
+            for (j = sp->typecnt - 1; j >= 0; --j) {
+                if (sp->ttis[j].tt_isdst == static_cast<bool>(yourtm.tm_isdst)) {
+                    continue;
+                }
+                if (ttunspecified(sp, j)) {
+                    continue;
+                }
+                newt = (t + sp->ttis[j].tt_utoff - sp->ttis[i].tt_utoff);
+                if (!funcp(sp, &newt, offset, &mytm)) {
+                    continue;
+                }
+                if (tmcomp(&mytm, &yourtm) != 0) {
+                    continue;
+                }
+                if (mytm.tm_isdst != yourtm.tm_isdst) {
+                    continue;
+                }
+                /*
+                ** We have a match.
+                */
+                t = newt;
+                goto label;
+            }
+        }
+        return 2;
+    }
+label:
+    newt = t + saved_seconds;
+    t = newt;
+    if (funcp(sp, &t, offset, tmp) || *okayp) {
+        *okayp = true;
+        *out_time = t;
+        return 0;
+    }
+    return 2;
+}
+
+int time2(time_t* out_time, struct CalendarTimeInternal* const tmp,
+    struct CalendarTimeInternal* (*funcp)(struct Rule const*, time_t const*, s64,
+        struct CalendarTimeInternal*),
+    struct Rule const* sp, const s64 offset, bool* okayp) {
+    int res;
+
+    /*
+    ** First try without normalization of seconds
+    ** (in case tm_sec contains a value associated with a leap second).
+    ** If that fails, try with normalization of seconds.
+    */
+    res = time2sub(out_time, tmp, funcp, sp, offset, okayp, false);
+    return *okayp ? res : time2sub(out_time, tmp, funcp, sp, offset, okayp, true);
+}
+
+int time1(time_t* out_time, CalendarTimeInternal* const tmp,
+    CalendarTimeInternal* (*funcp)(Rule const*, time_t const*, s64,
+        CalendarTimeInternal*),
+    Rule const* sp, const s64 offset) {
+    int samei, otheri;
+    int sameind, otherind;
+    int i;
+    int nseen;
+    char seen[TZ_MAX_TYPES];
+    unsigned char types[TZ_MAX_TYPES];
+    bool okay;
+
+    if (tmp->tm_isdst > 1) {
+        tmp->tm_isdst = 1;
+    }
+    auto res = time2(out_time, tmp, funcp, sp, offset, &okay);
+    if (res == 0) {
+        return res;
+    }
+    if (tmp->tm_isdst < 0) {
+        return res;
+    }
+    /*
+    ** We're supposed to assume that somebody took a time of one type
+    ** and did some math on it that yielded a "struct tm" that's bad.
+    ** We try to divine the type they started from and adjust to the
+    ** type they need.
+    */
+    for (i = 0; i < sp->typecnt; ++i) {
+        seen[i] = false;
+    }
+
+    if (sp->timecnt < 1) {
+        return 2;
+    }
+
+    nseen = 0;
+    for (i = sp->timecnt - 1; i >= 0; --i) {
+        if (!seen[sp->types[i]] && !ttunspecified(sp, sp->types[i])) {
+            seen[sp->types[i]] = true;
+            types[nseen++] = sp->types[i];
+        }
+    }
+
+    if (nseen < 1) {
+        return 2;
+    }
+
+    for (sameind = 0; sameind < nseen; ++sameind) {
+        samei = types[sameind];
+        if (sp->ttis[samei].tt_isdst != static_cast<bool>(tmp->tm_isdst)) {
+            continue;
+        }
+        for (otherind = 0; otherind < nseen; ++otherind) {
+            otheri = types[otherind];
+            if (sp->ttis[otheri].tt_isdst == static_cast<bool>(tmp->tm_isdst)) {
+                continue;
+            }
+            tmp->tm_sec += (sp->ttis[otheri].tt_utoff - sp->ttis[samei].tt_utoff);
+            tmp->tm_isdst = !tmp->tm_isdst;
+            res = time2(out_time, tmp, funcp, sp, offset, &okay);
+            if (res == 0) {
+                return res;
+            }
+            tmp->tm_sec -= (sp->ttis[otheri].tt_utoff - sp->ttis[samei].tt_utoff);
+            tmp->tm_isdst = !tmp->tm_isdst;
+        }
+    }
+    return 2;
+}
+
+} // namespace
+
+s32 ParseTimeZoneBinary(Rule& out_rule, std::span<const u8> binary) {
+    tzloadbody_local_storage.binary = binary;
+    if (tzloadbody(&out_rule, tzloadbody_local_storage)) {
+        return 3;
+    }
+    return 0;
+}
+
+bool localtime_rz(CalendarTimeInternal* tmp, Rule* sp, time_t* timep) {
+    return localsub(sp, timep, 0, tmp) == nullptr;
+}
+
+u32 mktime_tzname(time_t* out_time, Rule* sp, CalendarTimeInternal* tmp) {
+    return time1(out_time, tmp, localsub, sp, 0);
+}
+
+} // namespace Tz

externals/tz/tz/tz.h

@@ -0,0 +1,81 @@
+// SPDX-FileCopyrightText: 2023 yuzu Emulator Project
+// SPDX-FileCopyrightText: 1996 Arthur David Olson
+// SPDX-License-Identifier: BSD-2-Clause
+
+#pragma once
+
+#include <cstdint>
+#include <limits>
+#include <span>
+#include <array>
+#include <time.h>
+
+namespace Tz {
+using u8 = uint8_t;
+using s8 = int8_t;
+using u16 = uint16_t;
+using s16 = int16_t;
+using u32 = uint32_t;
+using s32 = int32_t;
+using u64 = uint64_t;
+using s64 = int64_t;
+
+constexpr size_t TZ_MAX_TIMES = 1000;
+constexpr size_t TZ_MAX_TYPES = 128;
+constexpr size_t TZ_MAX_CHARS = 50;
+constexpr size_t MY_TZNAME_MAX = 255;
+constexpr size_t TZNAME_MAXIMUM = 255;
+constexpr size_t TZ_MAX_LEAPS = 50;
+constexpr s64 TIME_T_MAX = std::numeric_limits<s64>::max();
+constexpr s64 TIME_T_MIN = std::numeric_limits<s64>::min();
+constexpr size_t CHARS_EXTRA = 3;
+constexpr size_t MAX_ZONE_CHARS = std::max(TZ_MAX_CHARS + CHARS_EXTRA, sizeof("UTC"));
+constexpr size_t MAX_TZNAME_CHARS = 2 * (MY_TZNAME_MAX + 1);
+
+struct ttinfo {
+    s32 tt_utoff;
+    bool tt_isdst;
+    s32 tt_desigidx;
+    bool tt_ttisstd;
+    bool tt_ttisut;
+};
+static_assert(sizeof(ttinfo) == 0x10, "ttinfo has the wrong size!");
+
+struct Rule {
+    s32 timecnt;
+    s32 typecnt;
+    s32 charcnt;
+    bool goback;
+    bool goahead;
+    std::array <u8, 0x2> padding0;
+    std::array<s64, TZ_MAX_TIMES> ats;
+    std::array<u8, TZ_MAX_TIMES> types;
+    std::array<ttinfo, TZ_MAX_TYPES> ttis;
+    std::array<char, std::max(MAX_ZONE_CHARS, MAX_TZNAME_CHARS)> chars;
+    s32 defaulttype;
+    std::array <u8, 0x12C4> padding1;
+};
+static_assert(sizeof(Rule) == 0x4000, "Rule has the wrong size!");
+
+struct CalendarTimeInternal {
+    s32 tm_sec;
+    s32 tm_min;
+    s32 tm_hour;
+    s32 tm_mday;
+    s32 tm_mon;
+    s32 tm_year;
+    s32 tm_wday;
+    s32 tm_yday;
+    s32 tm_isdst;
+    std::array<char, 16> tm_zone;
+    s32 tm_utoff;
+    s32 time_index;
+};
+static_assert(sizeof(CalendarTimeInternal) == 0x3C, "CalendarTimeInternal has the wrong size!");
+
+s32 ParseTimeZoneBinary(Rule& out_rule, std::span<const u8> binary);
+
+bool localtime_rz(CalendarTimeInternal* tmp, Rule* sp, time_t* timep);
+u32 mktime_tzname(time_t* out_time, Rule* sp, CalendarTimeInternal* tmp);
+
+} // namespace Tz

src/common/arm64/native_clock.cpp

@@ -30,27 +30,27 @@ NativeClock::NativeClock() {
 }
 
 std::chrono::nanoseconds NativeClock::GetTimeNS() const {
-    return std::chrono::nanoseconds{MultiplyHigh(GetHostTicksElapsed(), ns_cntfrq_factor)};
+    return std::chrono::nanoseconds{MultiplyHigh(GetUptime(), ns_cntfrq_factor)};
 }
 
 std::chrono::microseconds NativeClock::GetTimeUS() const {
-    return std::chrono::microseconds{MultiplyHigh(GetHostTicksElapsed(), us_cntfrq_factor)};
+    return std::chrono::microseconds{MultiplyHigh(GetUptime(), us_cntfrq_factor)};
 }
 
 std::chrono::milliseconds NativeClock::GetTimeMS() const {
-    return std::chrono::milliseconds{MultiplyHigh(GetHostTicksElapsed(), ms_cntfrq_factor)};
+    return std::chrono::milliseconds{MultiplyHigh(GetUptime(), ms_cntfrq_factor)};
 }
 
-u64 NativeClock::GetCNTPCT() const {
-    return MultiplyHigh(GetHostTicksElapsed(), guest_cntfrq_factor);
+s64 NativeClock::GetCNTPCT() const {
+    return MultiplyHigh(GetUptime(), guest_cntfrq_factor);
 }
 
-u64 NativeClock::GetGPUTick() const {
-    return MultiplyHigh(GetHostTicksElapsed(), gputick_cntfrq_factor);
+s64 NativeClock::GetGPUTick() const {
+    return MultiplyHigh(GetUptime(), gputick_cntfrq_factor);
 }
 
-u64 NativeClock::GetHostTicksNow() const {
-    u64 cntvct_el0 = 0;
+s64 NativeClock::GetUptime() const {
+    s64 cntvct_el0 = 0;
     asm volatile("dsb ish\n\t"
                  "mrs %[cntvct_el0], cntvct_el0\n\t"
                  "dsb ish\n\t"
@@ -58,15 +58,11 @@ u64 NativeClock::GetHostTicksNow() const {
     return cntvct_el0;
 }
 
-u64 NativeClock::GetHostTicksElapsed() const {
-    return GetHostTicksNow();
-}
-
 bool NativeClock::IsNative() const {
     return true;
 }
 
-u64 NativeClock::GetHostCNTFRQ() {
+s64 NativeClock::GetHostCNTFRQ() {
     u64 cntfrq_el0 = 0;
     std::string_view board{""};
 #ifdef ANDROID

src/common/arm64/native_clock.h

@@ -17,17 +17,15 @@ public:
 
     std::chrono::milliseconds GetTimeMS() const override;
 
-    u64 GetCNTPCT() const override;
+    s64 GetCNTPCT() const override;
 
-    u64 GetGPUTick() const override;
+    s64 GetGPUTick() const override;
 
-    u64 GetHostTicksNow() const override;
-
-    u64 GetHostTicksElapsed() const override;
+    s64 GetUptime() const override;
 
     bool IsNative() const override;
 
-    static u64 GetHostCNTFRQ();
+    static s64 GetHostCNTFRQ();
 
 public:
     using FactorType = unsigned __int128;

src/common/memory_detect.h

@@ -18,4 +18,4 @@ struct MemoryInfo {
  */
 [[nodiscard]] const MemoryInfo& GetMemInfo();
 
-} // namespace Common
+} // namespace Common

src/common/settings.h

@@ -419,9 +419,16 @@ struct Values {
         linkage, false, "custom_rtc_enabled", Category::System, Specialization::Paired, true, true};
     SwitchableSetting<s64> custom_rtc{
         linkage, 0,    "custom_rtc",       Category::System, Specialization::Time,
-        true,    true, &custom_rtc_enabled};
-    // Set on game boot, reset on stop. Seconds difference between current time and `custom_rtc`
-    s64 custom_rtc_differential;
+        false,   true, &custom_rtc_enabled};
+    SwitchableSetting<s64, true> custom_rtc_offset{linkage,
+                                                   0,
+                                                   std::numeric_limits<int>::min(),
+                                                   std::numeric_limits<int>::max(),
+                                                   "custom_rtc_offset",
+                                                   Category::System,
+                                                   Specialization::Countable,
+                                                   true,
+                                                   true};
     SwitchableSetting<bool> rng_seed_enabled{
         linkage, false, "rng_seed_enabled", Category::System, Specialization::Paired, true, true};
     SwitchableSetting<u32> rng_seed{

src/common/time_zone.cpp

@@ -88,7 +88,17 @@ std::string FindSystemTimeZone() {
             LOG_ERROR(Common, "Time zone {} not handled, defaulting to hour offset.", tz_index);
         }
     }
-    return fmt::format("Etc/GMT{:s}{:d}", hours > 0 ? "-" : "+", std::abs(hours));
+
+    // For some reason the Etc/GMT times are reversed. GMT+6 contains -21600 as its offset,
+    // -6 hours instead of +6 hours, so these signs are purposefully reversed to fix it.
+    std::string postfix{""};
+    if (hours > 0) {
+        postfix = fmt::format("-{:d}", std::abs(hours));
+    } else if (hours < 0) {
+        postfix = fmt::format("+{:d}", std::abs(hours));
+    }
+
+    return fmt::format("Etc/GMT{:s}", postfix);
 }
 
 } // namespace Common::TimeZone

src/common/uuid.h

@@ -12,9 +12,8 @@
 namespace Common {
 
 struct UUID {
-    std::array<u8, 0x10> uuid{};
+    std::array<u8, 0x10> uuid;
 
-    /// Constructs an invalid UUID.
     constexpr UUID() = default;
 
     /// Constructs a UUID from a reference to a 128 bit array.
@@ -34,14 +33,6 @@ struct UUID {
      */
     explicit UUID(std::string_view uuid_string);
 
-    ~UUID() = default;
-
-    constexpr UUID(const UUID&) noexcept = default;
-    constexpr UUID(UUID&&) noexcept = default;
-
-    constexpr UUID& operator=(const UUID&) noexcept = default;
-    constexpr UUID& operator=(UUID&&) noexcept = default;
-
     /**
      * Returns whether the stored UUID is valid or not.
      *
@@ -121,6 +112,7 @@ struct UUID {
     friend constexpr bool operator==(const UUID& lhs, const UUID& rhs) = default;
 };
 static_assert(sizeof(UUID) == 0x10, "UUID has incorrect size.");
+static_assert(std::is_trivial_v<UUID>);
 
 /// An invalid UUID. This UUID has all its bytes set to 0.
 constexpr UUID InvalidUUID = {};

src/common/wall_clock.cpp

@@ -18,42 +18,40 @@ namespace Common {
 
 class StandardWallClock final : public WallClock {
 public:
-    explicit StandardWallClock() : start_time{SteadyClock::Now()} {}
+    explicit StandardWallClock() {}
 
     std::chrono::nanoseconds GetTimeNS() const override {
-        return SteadyClock::Now() - start_time;
+        return std::chrono::duration_cast<std::chrono::nanoseconds>(
+            std::chrono::system_clock::now().time_since_epoch());
     }
 
     std::chrono::microseconds GetTimeUS() const override {
-        return static_cast<std::chrono::microseconds>(GetHostTicksElapsed() / NsToUsRatio::den);
+        return std::chrono::duration_cast<std::chrono::microseconds>(
+            std::chrono::system_clock::now().time_since_epoch());
     }
 
     std::chrono::milliseconds GetTimeMS() const override {
-        return static_cast<std::chrono::milliseconds>(GetHostTicksElapsed() / NsToMsRatio::den);
+        return std::chrono::duration_cast<std::chrono::milliseconds>(
+            std::chrono::system_clock::now().time_since_epoch());
     }
 
-    u64 GetCNTPCT() const override {
-        return GetHostTicksElapsed() * NsToCNTPCTRatio::num / NsToCNTPCTRatio::den;
+    s64 GetCNTPCT() const override {
+        return GetUptime() * NsToCNTPCTRatio::num / NsToCNTPCTRatio::den;
     }
 
-    u64 GetGPUTick() const override {
-        return GetHostTicksElapsed() * NsToGPUTickRatio::num / NsToGPUTickRatio::den;
+    s64 GetGPUTick() const override {
+        return GetUptime() * NsToGPUTickRatio::num / NsToGPUTickRatio::den;
     }
 
-    u64 GetHostTicksNow() const override {
-        return static_cast<u64>(SteadyClock::Now().time_since_epoch().count());
-    }
-
-    u64 GetHostTicksElapsed() const override {
-        return static_cast<u64>(GetTimeNS().count());
+    s64 GetUptime() const override {
+        return std::chrono::duration_cast<std::chrono::nanoseconds>(
+                   std::chrono::steady_clock::now().time_since_epoch())
+            .count();
     }
 
     bool IsNative() const override {
         return false;
     }
-
-private:
-    SteadyClock::time_point start_time;
 };
 
 std::unique_ptr<WallClock> CreateOptimalClock() {

src/common/wall_clock.h

@@ -29,16 +29,13 @@ public:
     virtual std::chrono::milliseconds GetTimeMS() const = 0;
 
     /// @returns The guest CNTPCT ticks since the construction of this clock.
-    virtual u64 GetCNTPCT() const = 0;
+    virtual s64 GetCNTPCT() const = 0;
 
     /// @returns The guest GPU ticks since the construction of this clock.
-    virtual u64 GetGPUTick() const = 0;
+    virtual s64 GetGPUTick() const = 0;
 
     /// @returns The raw host timer ticks since an indeterminate epoch.
-    virtual u64 GetHostTicksNow() const = 0;
-
-    /// @returns The raw host timer ticks since the construction of this clock.
-    virtual u64 GetHostTicksElapsed() const = 0;
+    virtual s64 GetUptime() const = 0;
 
     /// @returns Whether the clock directly uses the host's hardware clock.
     virtual bool IsNative() const = 0;

src/common/x64/native_clock.cpp

@@ -8,39 +8,35 @@
 namespace Common::X64 {
 
 NativeClock::NativeClock(u64 rdtsc_frequency_)
-    : start_ticks{FencedRDTSC()}, rdtsc_frequency{rdtsc_frequency_},
-      ns_rdtsc_factor{GetFixedPoint64Factor(NsRatio::den, rdtsc_frequency)},
+    : rdtsc_frequency{rdtsc_frequency_}, ns_rdtsc_factor{GetFixedPoint64Factor(NsRatio::den,
+                                                                               rdtsc_frequency)},
       us_rdtsc_factor{GetFixedPoint64Factor(UsRatio::den, rdtsc_frequency)},
       ms_rdtsc_factor{GetFixedPoint64Factor(MsRatio::den, rdtsc_frequency)},
       cntpct_rdtsc_factor{GetFixedPoint64Factor(CNTFRQ, rdtsc_frequency)},
       gputick_rdtsc_factor{GetFixedPoint64Factor(GPUTickFreq, rdtsc_frequency)} {}
 
 std::chrono::nanoseconds NativeClock::GetTimeNS() const {
-    return std::chrono::nanoseconds{MultiplyHigh(GetHostTicksElapsed(), ns_rdtsc_factor)};
+    return std::chrono::nanoseconds{MultiplyHigh(GetUptime(), ns_rdtsc_factor)};
 }
 
 std::chrono::microseconds NativeClock::GetTimeUS() const {
-    return std::chrono::microseconds{MultiplyHigh(GetHostTicksElapsed(), us_rdtsc_factor)};
+    return std::chrono::microseconds{MultiplyHigh(GetUptime(), us_rdtsc_factor)};
 }
 
 std::chrono::milliseconds NativeClock::GetTimeMS() const {
-    return std::chrono::milliseconds{MultiplyHigh(GetHostTicksElapsed(), ms_rdtsc_factor)};
+    return std::chrono::milliseconds{MultiplyHigh(GetUptime(), ms_rdtsc_factor)};
 }
 
-u64 NativeClock::GetCNTPCT() const {
-    return MultiplyHigh(GetHostTicksElapsed(), cntpct_rdtsc_factor);
+s64 NativeClock::GetCNTPCT() const {
+    return MultiplyHigh(GetUptime(), cntpct_rdtsc_factor);
 }
 
-u64 NativeClock::GetGPUTick() const {
-    return MultiplyHigh(GetHostTicksElapsed(), gputick_rdtsc_factor);
+s64 NativeClock::GetGPUTick() const {
+    return MultiplyHigh(GetUptime(), gputick_rdtsc_factor);
 }
 
-u64 NativeClock::GetHostTicksNow() const {
-    return FencedRDTSC();
-}
-
-u64 NativeClock::GetHostTicksElapsed() const {
-    return FencedRDTSC() - start_ticks;
+s64 NativeClock::GetUptime() const {
+    return static_cast<s64>(FencedRDTSC());
 }
 
 bool NativeClock::IsNative() const {

src/common/x64/native_clock.h

@@ -17,18 +17,15 @@ public:
 
     std::chrono::milliseconds GetTimeMS() const override;
 
-    u64 GetCNTPCT() const override;
+    s64 GetCNTPCT() const override;
 
-    u64 GetGPUTick() const override;
+    s64 GetGPUTick() const override;
 
-    u64 GetHostTicksNow() const override;
-
-    u64 GetHostTicksElapsed() const override;
+    s64 GetUptime() const override;
 
     bool IsNative() const override;
 
 private:
-    u64 start_ticks;
     u64 rdtsc_frequency;
 
     u64 ns_rdtsc_factor;

src/core/CMakeLists.txt

@@ -515,6 +515,24 @@ add_library(core STATIC
     hle/service/glue/glue_manager.h
     hle/service/glue/notif.cpp
     hle/service/glue/notif.h
+    hle/service/glue/time/alarm_worker.cpp
+    hle/service/glue/time/alarm_worker.h
+    hle/service/glue/time/file_timestamp_worker.cpp
+    hle/service/glue/time/file_timestamp_worker.h
+    hle/service/glue/time/manager.cpp
+    hle/service/glue/time/manager.h
+    hle/service/glue/time/pm_state_change_handler.cpp
+    hle/service/glue/time/pm_state_change_handler.h
+    hle/service/glue/time/standard_steady_clock_resource.cpp
+    hle/service/glue/time/standard_steady_clock_resource.h
+    hle/service/glue/time/static.cpp
+    hle/service/glue/time/static.h
+    hle/service/glue/time/time_zone.cpp
+    hle/service/glue/time/time_zone.h
+    hle/service/glue/time/time_zone_binary.cpp
+    hle/service/glue/time/time_zone_binary.h
+    hle/service/glue/time/worker.cpp
+    hle/service/glue/time/worker.h
     hle/service/grc/grc.cpp
     hle/service/grc/grc.h
     hle/service/hid/hid.cpp
@@ -693,6 +711,46 @@ add_library(core STATIC
     hle/service/prepo/prepo.h
     hle/service/psc/psc.cpp
     hle/service/psc/psc.h
+    hle/service/psc/time/alarms.cpp
+    hle/service/psc/time/alarms.h
+    hle/service/psc/time/clocks/context_writers.cpp
+    hle/service/psc/time/clocks/context_writers.h
+    hle/service/psc/time/clocks/ephemeral_network_system_clock_core.h
+    hle/service/psc/time/clocks/standard_local_system_clock_core.cpp
+    hle/service/psc/time/clocks/standard_local_system_clock_core.h
+    hle/service/psc/time/clocks/standard_network_system_clock_core.cpp
+    hle/service/psc/time/clocks/standard_network_system_clock_core.h
+    hle/service/psc/time/clocks/standard_steady_clock_core.cpp
+    hle/service/psc/time/clocks/standard_steady_clock_core.h
+    hle/service/psc/time/clocks/standard_user_system_clock_core.cpp
+    hle/service/psc/time/clocks/standard_user_system_clock_core.h
+    hle/service/psc/time/clocks/steady_clock_core.h
+    hle/service/psc/time/clocks/system_clock_core.cpp
+    hle/service/psc/time/clocks/system_clock_core.h
+    hle/service/psc/time/clocks/tick_based_steady_clock_core.cpp
+    hle/service/psc/time/clocks/tick_based_steady_clock_core.h
+    hle/service/psc/time/common.cpp
+    hle/service/psc/time/common.h
+    hle/service/psc/time/errors.h
+    hle/service/psc/time/shared_memory.cpp
+    hle/service/psc/time/shared_memory.h
+    hle/service/psc/time/static.cpp
+    hle/service/psc/time/static.h
+    hle/service/psc/time/manager.h
+    hle/service/psc/time/power_state_service.cpp
+    hle/service/psc/time/power_state_service.h
+    hle/service/psc/time/service_manager.cpp
+    hle/service/psc/time/service_manager.h
+    hle/service/psc/time/steady_clock.cpp
+    hle/service/psc/time/steady_clock.h
+    hle/service/psc/time/system_clock.cpp
+    hle/service/psc/time/system_clock.h
+    hle/service/psc/time/time_zone.cpp
+    hle/service/psc/time/time_zone.h
+    hle/service/psc/time/time_zone_service.cpp
+    hle/service/psc/time/time_zone_service.h
+    hle/service/psc/time/power_state_request_manager.cpp
+    hle/service/psc/time/power_state_request_manager.h
     hle/service/ptm/psm.cpp
     hle/service/ptm/psm.h
     hle/service/ptm/ptm.cpp
@@ -760,40 +818,6 @@ add_library(core STATIC
     hle/service/ssl/ssl.cpp
     hle/service/ssl/ssl.h
     hle/service/ssl/ssl_backend.h
-    hle/service/time/clock_types.h
-    hle/service/time/ephemeral_network_system_clock_context_writer.h
-    hle/service/time/ephemeral_network_system_clock_core.h
-    hle/service/time/errors.h
-    hle/service/time/local_system_clock_context_writer.h
-    hle/service/time/network_system_clock_context_writer.h
-    hle/service/time/standard_local_system_clock_core.h
-    hle/service/time/standard_network_system_clock_core.h
-    hle/service/time/standard_steady_clock_core.cpp
-    hle/service/time/standard_steady_clock_core.h
-    hle/service/time/standard_user_system_clock_core.cpp
-    hle/service/time/standard_user_system_clock_core.h
-    hle/service/time/steady_clock_core.h
-    hle/service/time/system_clock_context_update_callback.cpp
-    hle/service/time/system_clock_context_update_callback.h
-    hle/service/time/system_clock_core.cpp
-    hle/service/time/system_clock_core.h
-    hle/service/time/tick_based_steady_clock_core.cpp
-    hle/service/time/tick_based_steady_clock_core.h
-    hle/service/time/time.cpp
-    hle/service/time/time.h
-    hle/service/time/time_interface.cpp
-    hle/service/time/time_interface.h
-    hle/service/time/time_manager.cpp
-    hle/service/time/time_manager.h
-    hle/service/time/time_sharedmemory.cpp
-    hle/service/time/time_sharedmemory.h
-    hle/service/time/time_zone_content_manager.cpp
-    hle/service/time/time_zone_content_manager.h
-    hle/service/time/time_zone_manager.cpp
-    hle/service/time/time_zone_manager.h
-    hle/service/time/time_zone_service.cpp
-    hle/service/time/time_zone_service.h
-    hle/service/time/time_zone_types.h
     hle/service/usb/usb.cpp
     hle/service/usb/usb.h
     hle/service/vi/display/vi_display.cpp
@@ -874,7 +898,7 @@ endif()
 
 create_target_directory_groups(core)
 
-target_link_libraries(core PUBLIC common PRIVATE audio_core hid_core network video_core nx_tzdb)
+target_link_libraries(core PUBLIC common PRIVATE audio_core hid_core network video_core nx_tzdb tz)
 target_link_libraries(core PUBLIC Boost::headers PRIVATE fmt::fmt nlohmann_json::nlohmann_json mbedtls RenderDoc::API)
 if (MINGW)
     target_link_libraries(core PRIVATE ${MSWSOCK_LIBRARY})

src/core/core.cpp

@@ -40,9 +40,14 @@
 #include "core/hle/service/apm/apm_controller.h"
 #include "core/hle/service/filesystem/filesystem.h"
 #include "core/hle/service/glue/glue_manager.h"
+#include "core/hle/service/glue/time/static.h"
+#include "core/hle/service/psc/time/static.h"
+#include "core/hle/service/psc/time/steady_clock.h"
+#include "core/hle/service/psc/time/system_clock.h"
+#include "core/hle/service/psc/time/time_zone_service.h"
 #include "core/hle/service/service.h"
+#include "core/hle/service/set/system_settings_server.h"
 #include "core/hle/service/sm/sm.h"
-#include "core/hle/service/time/time_manager.h"
 #include "core/internal_network/network.h"
 #include "core/loader/loader.h"
 #include "core/memory.h"
@@ -130,8 +135,8 @@ FileSys::VirtualFile GetGameFileFromPath(const FileSys::VirtualFilesystem& vfs,
 
 struct System::Impl {
     explicit Impl(System& system)
-        : kernel{system}, fs_controller{system}, hid_core{}, room_network{}, cpu_manager{system},
-          reporter{system}, applet_manager{system}, profile_manager{}, time_manager{system} {}
+        : kernel{system}, fs_controller{system}, hid_core{}, room_network{},
+          cpu_manager{system}, reporter{system}, applet_manager{system}, profile_manager{} {}
 
     void Initialize(System& system) {
         device_memory = std::make_unique<Core::DeviceMemory>();
@@ -143,8 +148,6 @@ struct System::Impl {
         core_timing.SetMulticore(is_multicore);
         core_timing.Initialize([&system]() { system.RegisterHostThread(); });
 
-        RefreshTime();
-
         // Create a default fs if one doesn't already exist.
         if (virtual_filesystem == nullptr) {
             virtual_filesystem = std::make_shared<FileSys::RealVfsFilesystem>();
@@ -182,14 +185,57 @@ struct System::Impl {
         Initialize(system);
     }
 
-    void RefreshTime() {
+    void RefreshTime(System& system) {
+        if (!system.IsPoweredOn()) {
+            return;
+        }
+
+        auto settings_service =
+            system.ServiceManager().GetService<Service::Set::ISystemSettingsServer>("set:sys",
+                                                                                    true);
+        auto static_service_a =
+            system.ServiceManager().GetService<Service::Glue::Time::StaticService>("time:a", true);
+
+        auto static_service_s =
+            system.ServiceManager().GetService<Service::PSC::Time::StaticService>("time:s", true);
+
+        std::shared_ptr<Service::PSC::Time::SystemClock> user_clock;
+        static_service_a->GetStandardUserSystemClock(user_clock);
+
+        std::shared_ptr<Service::PSC::Time::SystemClock> local_clock;
+        static_service_a->GetStandardLocalSystemClock(local_clock);
+
+        std::shared_ptr<Service::PSC::Time::SystemClock> network_clock;
+        static_service_s->GetStandardNetworkSystemClock(network_clock);
+
+        std::shared_ptr<Service::Glue::Time::TimeZoneService> timezone_service;
+        static_service_a->GetTimeZoneService(timezone_service);
+
+        Service::PSC::Time::LocationName name{};
+        auto new_name = Settings::GetTimeZoneString(Settings::values.time_zone_index.GetValue());
+        std::memcpy(name.name.data(), new_name.data(), std::min(name.name.size(), new_name.size()));
+
+        timezone_service->SetDeviceLocation(name);
+
+        u64 time_offset = 0;
+        if (Settings::values.custom_rtc_enabled) {
+            time_offset = Settings::values.custom_rtc_offset.GetValue();
+        }
+
         const auto posix_time = std::chrono::system_clock::now().time_since_epoch();
-        const auto current_time =
-            std::chrono::duration_cast<std::chrono::seconds>(posix_time).count();
-        Settings::values.custom_rtc_differential =
-            (Settings::values.custom_rtc_enabled ? Settings::values.custom_rtc.GetValue()
-                                                 : current_time) -
-            current_time;
+        const u64 current_time =
+            +std::chrono::duration_cast<std::chrono::seconds>(posix_time).count();
+        const u64 new_time = current_time + time_offset;
+
+        Service::PSC::Time::SystemClockContext context{};
+        settings_service->SetUserSystemClockContext(context);
+        user_clock->SetCurrentTime(new_time);
+
+        local_clock->SetCurrentTime(new_time);
+
+        network_clock->GetSystemClockContext(context);
+        settings_service->SetNetworkSystemClockContext(context);
+        network_clock->SetCurrentTime(new_time);
     }
 
     void Run() {
@@ -265,9 +311,6 @@ struct System::Impl {
         service_manager = std::make_shared<Service::SM::ServiceManager>(kernel);
         services = std::make_unique<Service::Services>(service_manager, system);
 
-        // Initialize time manager, which must happen after kernel is created
-        time_manager.Initialize();
-
         is_powered_on = true;
         exit_locked = false;
         exit_requested = false;
@@ -417,7 +460,6 @@ struct System::Impl {
         fs_controller.Reset();
         cheat_engine.reset();
         telemetry_session.reset();
-        time_manager.Shutdown();
         core_timing.ClearPendingEvents();
         app_loader.reset();
         audio_core.reset();
@@ -533,7 +575,6 @@ struct System::Impl {
     /// Service State
     Service::Glue::ARPManager arp_manager;
     Service::Account::ProfileManager profile_manager;
-    Service::Time::TimeManager time_manager;
 
     /// Service manager
     std::shared_ptr<Service::SM::ServiceManager> service_manager;
@@ -911,14 +952,6 @@ const Service::Account::ProfileManager& System::GetProfileManager() const {
     return impl->profile_manager;
 }
 
-Service::Time::TimeManager& System::GetTimeManager() {
-    return impl->time_manager;
-}
-
-const Service::Time::TimeManager& System::GetTimeManager() const {
-    return impl->time_manager;
-}
-
 void System::SetExitLocked(bool locked) {
     impl->exit_locked = locked;
 }
@@ -1030,13 +1063,9 @@ void System::Exit() {
 }
 
 void System::ApplySettings() {
-    impl->RefreshTime();
+    impl->RefreshTime(*this);
 
     if (IsPoweredOn()) {
-        if (Settings::values.custom_rtc_enabled) {
-            const s64 posix_time{Settings::values.custom_rtc.GetValue()};
-            GetTimeManager().UpdateLocalSystemClockTime(posix_time);
-        }
         Renderer().RefreshBaseSettings();
     }
 }

src/core/core.h

@@ -73,10 +73,6 @@ namespace SM {
 class ServiceManager;
 } // namespace SM
 
-namespace Time {
-class TimeManager;
-} // namespace Time
-
 } // namespace Service
 
 namespace Tegra {
@@ -381,9 +377,6 @@ public:
     [[nodiscard]] Service::Account::ProfileManager& GetProfileManager();
     [[nodiscard]] const Service::Account::ProfileManager& GetProfileManager() const;
 
-    [[nodiscard]] Service::Time::TimeManager& GetTimeManager();
-    [[nodiscard]] const Service::Time::TimeManager& GetTimeManager() const;
-
     [[nodiscard]] Core::Debugger& GetDebugger();
     [[nodiscard]] const Core::Debugger& GetDebugger() const;
 

src/core/core_timing.cpp

@@ -157,7 +157,7 @@ void CoreTiming::UnscheduleEvent(const std::shared_ptr<EventType>& event_type,
             }
         }
 
-        for (auto h : to_remove) {
+        for (auto& h : to_remove) {
             event_queue.erase(h);
         }
 

src/core/file_sys/system_archive/system_archive.cpp

@@ -67,25 +67,29 @@ constexpr std::array<SystemArchiveDescriptor, SYSTEM_ARCHIVE_COUNT> SYSTEM_ARCHI
 }};
 
 VirtualFile SynthesizeSystemArchive(const u64 title_id) {
-    if (title_id < SYSTEM_ARCHIVES.front().title_id || title_id > SYSTEM_ARCHIVES.back().title_id)
+    if (title_id < SYSTEM_ARCHIVES.front().title_id || title_id > SYSTEM_ARCHIVES.back().title_id) {
         return nullptr;
+    }
 
     const auto& desc = SYSTEM_ARCHIVES[title_id - SYSTEM_ARCHIVE_BASE_TITLE_ID];
 
     LOG_INFO(Service_FS, "Synthesizing system archive '{}' (0x{:016X}).", desc.name, desc.title_id);
 
-    if (desc.supplier == nullptr)
+    if (desc.supplier == nullptr) {
         return nullptr;
+    }
 
     const auto dir = desc.supplier();
 
-    if (dir == nullptr)
+    if (dir == nullptr) {
         return nullptr;
+    }
 
     const auto romfs = CreateRomFS(dir);
 
-    if (romfs == nullptr)
+    if (romfs == nullptr) {
         return nullptr;
+    }
 
     LOG_INFO(Service_FS, "    - System archive generation successful!");
     return romfs;

src/core/file_sys/system_archive/time_zone_binary.cpp

@@ -6,7 +6,6 @@
 #include "common/swap.h"
 #include "core/file_sys/system_archive/time_zone_binary.h"
 #include "core/file_sys/vfs_vector.h"
-#include "core/hle/service/time/time_zone_types.h"
 
 #include "nx_tzdb.h"
 

src/core/hle/service/caps/caps_manager.cpp

@@ -10,8 +10,10 @@
 #include "core/core.h"
 #include "core/hle/service/caps/caps_manager.h"
 #include "core/hle/service/caps/caps_result.h"
-#include "core/hle/service/time/time_manager.h"
-#include "core/hle/service/time/time_zone_content_manager.h"
+#include "core/hle/service/glue/time/static.h"
+#include "core/hle/service/psc/time/system_clock.h"
+#include "core/hle/service/service.h"
+#include "core/hle/service/sm/sm.h"
 
 namespace Service::Capture {
 
@@ -239,10 +241,15 @@ Result AlbumManager::SaveScreenShot(ApplicationAlbumEntry& out_entry,
                                     const ApplicationData& app_data, std::span<const u8> image_data,
                                     u64 aruid) {
     const u64 title_id = system.GetApplicationProcessProgramID();
-    const auto& user_clock = system.GetTimeManager().GetStandardUserSystemClockCore();
+
+    auto static_service =
+        system.ServiceManager().GetService<Service::Glue::Time::StaticService>("time:u", true);
+
+    std::shared_ptr<Service::PSC::Time::SystemClock> user_clock{};
+    static_service->GetStandardUserSystemClock(user_clock);
 
     s64 posix_time{};
-    Result result = user_clock.GetCurrentTime(system, posix_time);
+    auto result = user_clock->GetCurrentTime(posix_time);
 
     if (result.IsError()) {
         return result;
@@ -257,10 +264,14 @@ Result AlbumManager::SaveEditedScreenShot(ApplicationAlbumEntry& out_entry,
                                           const ScreenShotAttribute& attribute,
                                           const AlbumFileId& file_id,
                                           std::span<const u8> image_data) {
-    const auto& user_clock = system.GetTimeManager().GetStandardUserSystemClockCore();
+    auto static_service =
+        system.ServiceManager().GetService<Service::Glue::Time::StaticService>("time:u", true);
+
+    std::shared_ptr<Service::PSC::Time::SystemClock> user_clock{};
+    static_service->GetStandardUserSystemClock(user_clock);
 
     s64 posix_time{};
-    Result result = user_clock.GetCurrentTime(system, posix_time);
+    auto result = user_clock->GetCurrentTime(posix_time);
 
     if (result.IsError()) {
         return result;
@@ -455,19 +466,23 @@ Result AlbumManager::SaveImage(ApplicationAlbumEntry& out_entry, std::span<const
 }
 
 AlbumFileDateTime AlbumManager::ConvertToAlbumDateTime(u64 posix_time) const {
-    Time::TimeZone::CalendarInfo calendar_date{};
-    const auto& time_zone_manager =
-        system.GetTimeManager().GetTimeZoneContentManager().GetTimeZoneManager();
+    auto static_service =
+        system.ServiceManager().GetService<Service::Glue::Time::StaticService>("time:u", true);
+
+    std::shared_ptr<Service::Glue::Time::TimeZoneService> timezone_service{};
+    static_service->GetTimeZoneService(timezone_service);
 
-    time_zone_manager.ToCalendarTimeWithMyRules(posix_time, calendar_date);
+    Service::PSC::Time::CalendarTime calendar_time{};
+    Service::PSC::Time::CalendarAdditionalInfo additional_info{};
+    timezone_service->ToCalendarTimeWithMyRule(calendar_time, additional_info, posix_time);
 
     return {
-        .year = calendar_date.time.year,
-        .month = calendar_date.time.month,
-        .day = calendar_date.time.day,
-        .hour = calendar_date.time.hour,
-        .minute = calendar_date.time.minute,
-        .second = calendar_date.time.second,
+        .year = calendar_time.year,
+        .month = calendar_time.month,
+        .day = calendar_time.day,
+        .hour = calendar_time.hour,
+        .minute = calendar_time.minute,
+        .second = calendar_time.second,
         .unique_id = 0,
     };
 }

src/core/hle/service/glue/glue.cpp

@@ -8,6 +8,9 @@
 #include "core/hle/service/glue/ectx.h"
 #include "core/hle/service/glue/glue.h"
 #include "core/hle/service/glue/notif.h"
+#include "core/hle/service/glue/time/manager.h"
+#include "core/hle/service/glue/time/static.h"
+#include "core/hle/service/psc/time/common.h"
 #include "core/hle/service/server_manager.h"
 
 namespace Service::Glue {
@@ -31,6 +34,22 @@ void LoopProcess(Core::System& system) {
     // Notification Services for application
     server_manager->RegisterNamedService("notif:a", std::make_shared<NOTIF_A>(system));
 
+    // Time
+    auto time = std::make_shared<Time::TimeManager>(system);
+
+    server_manager->RegisterNamedService(
+        "time:u",
+        std::make_shared<Time::StaticService>(
+            system, Service::PSC::Time::StaticServiceSetupInfo{0, 0, 0, 0, 0, 0}, time, "time:u"));
+    server_manager->RegisterNamedService(
+        "time:a",
+        std::make_shared<Time::StaticService>(
+            system, Service::PSC::Time::StaticServiceSetupInfo{1, 1, 0, 1, 0, 0}, time, "time:a"));
+    server_manager->RegisterNamedService(
+        "time:r",
+        std::make_shared<Time::StaticService>(
+            system, Service::PSC::Time::StaticServiceSetupInfo{0, 0, 0, 0, 1, 0}, time, "time:r"));
+
     ServerManager::RunServer(std::move(server_manager));
 }
 

src/core/hle/service/glue/time/alarm_worker.cpp

@@ -0,0 +1,82 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/core.h"
+#include "core/core_timing.h"
+#include "core/hle/kernel/svc.h"
+#include "core/hle/service/glue/time/alarm_worker.h"
+#include "core/hle/service/psc/time/service_manager.h"
+#include "core/hle/service/sm/sm.h"
+
+namespace Service::Glue::Time {
+
+AlarmWorker::AlarmWorker(Core::System& system, StandardSteadyClockResource& steady_clock_resource)
+    : m_system{system}, m_ctx{system, "Glue:AlarmWorker"}, m_steady_clock_resource{
+                                                               steady_clock_resource} {}
+
+AlarmWorker::~AlarmWorker() {
+    m_system.CoreTiming().UnscheduleEvent(m_timer_timing_event);
+
+    m_ctx.CloseEvent(m_timer_event);
+}
+
+void AlarmWorker::Initialize(std::shared_ptr<Service::PSC::Time::ServiceManager> time_m) {
+    m_time_m = std::move(time_m);
+
+    m_timer_event = m_ctx.CreateEvent("Glue:AlarmWorker:TimerEvent");
+    m_timer_timing_event = Core::Timing::CreateEvent(
+        "Glue:AlarmWorker::AlarmTimer",
+        [this](s64 time,
+               std::chrono::nanoseconds ns_late) -> std::optional<std::chrono::nanoseconds> {
+            m_timer_event->Signal();
+            return std::nullopt;
+        });
+
+    AttachToClosestAlarmEvent();
+}
+
+bool AlarmWorker::GetClosestAlarmInfo(Service::PSC::Time::AlarmInfo& out_alarm_info,
+                                      s64& out_time) {
+    bool is_valid{};
+    Service::PSC::Time::AlarmInfo alarm_info{};
+    s64 closest_time{};
+
+    auto res = m_time_m->GetClosestAlarmInfo(is_valid, alarm_info, closest_time);
+    ASSERT(res == ResultSuccess);
+
+    if (is_valid) {
+        out_alarm_info = alarm_info;
+        out_time = closest_time;
+    }
+
+    return is_valid;
+}
+
+void AlarmWorker::OnPowerStateChanged() {
+    Service::PSC::Time::AlarmInfo closest_alarm_info{};
+    s64 closest_time{};
+    if (!GetClosestAlarmInfo(closest_alarm_info, closest_time)) {
+        m_system.CoreTiming().UnscheduleEvent(m_timer_timing_event);
+        m_timer_event->Clear();
+        return;
+    }
+
+    if (closest_alarm_info.alert_time <= closest_time) {
+        m_time_m->CheckAndSignalAlarms();
+    } else {
+        auto next_time{closest_alarm_info.alert_time - closest_time};
+
+        m_system.CoreTiming().UnscheduleEvent(m_timer_timing_event);
+        m_timer_event->Clear();
+
+        m_system.CoreTiming().ScheduleEvent(std::chrono::nanoseconds(next_time),
+                                            m_timer_timing_event);
+    }
+}
+
+Result AlarmWorker::AttachToClosestAlarmEvent() {
+    m_time_m->GetClosestAlarmUpdatedEvent(&m_event);
+    R_SUCCEED();
+}
+
+} // namespace Service::Glue::Time

src/core/hle/service/glue/time/alarm_worker.h

@@ -0,0 +1,53 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "common/common_types.h"
+#include "core/hle/kernel/k_event.h"
+#include "core/hle/service/kernel_helpers.h"
+#include "core/hle/service/psc/time/common.h"
+
+namespace Core {
+class System;
+}
+
+namespace Service::PSC::Time {
+class ServiceManager;
+}
+
+namespace Service::Glue::Time {
+class StandardSteadyClockResource;
+
+class AlarmWorker {
+public:
+    explicit AlarmWorker(Core::System& system, StandardSteadyClockResource& steady_clock_resource);
+    ~AlarmWorker();
+
+    void Initialize(std::shared_ptr<Service::PSC::Time::ServiceManager> time_m);
+
+    Kernel::KEvent& GetEvent() {
+        return *m_event;
+    }
+
+    Kernel::KEvent& GetTimerEvent() {
+        return *m_timer_event;
+    }
+
+    void OnPowerStateChanged();
+
+private:
+    bool GetClosestAlarmInfo(Service::PSC::Time::AlarmInfo& out_alarm_info, s64& out_time);
+    Result AttachToClosestAlarmEvent();
+
+    Core::System& m_system;
+    KernelHelpers::ServiceContext m_ctx;
+    std::shared_ptr<Service::PSC::Time::ServiceManager> m_time_m;
+
+    Kernel::KEvent* m_event{};
+    Kernel::KEvent* m_timer_event{};
+    std::shared_ptr<Core::Timing::EventType> m_timer_timing_event;
+    StandardSteadyClockResource& m_steady_clock_resource;
+};
+
+} // namespace Service::Glue::Time

src/core/hle/service/glue/time/file_timestamp_worker.cpp

@@ -0,0 +1,23 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/glue/time/file_timestamp_worker.h"
+#include "core/hle/service/psc/time/common.h"
+#include "core/hle/service/psc/time/system_clock.h"
+#include "core/hle/service/psc/time/time_zone_service.h"
+
+namespace Service::Glue::Time {
+
+void FileTimestampWorker::SetFilesystemPosixTime() {
+    s64 time{};
+    Service::PSC::Time::CalendarTime calendar_time{};
+    Service::PSC::Time::CalendarAdditionalInfo additional_info{};
+
+    if (m_initialized && m_system_clock->GetCurrentTime(time) == ResultSuccess &&
+        m_time_zone->ToCalendarTimeWithMyRule(calendar_time, additional_info, time) ==
+            ResultSuccess) {
+        // TODO IFileSystemProxy::SetCurrentPosixTime
+    }
+}
+
+} // namespace Service::Glue::Time

src/core/hle/service/glue/time/file_timestamp_worker.h

@@ -0,0 +1,28 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <memory>
+
+#include "common/common_types.h"
+
+namespace Service::PSC::Time {
+class SystemClock;
+class TimeZoneService;
+} // namespace Service::PSC::Time
+
+namespace Service::Glue::Time {
+
+class FileTimestampWorker {
+public:
+    FileTimestampWorker() = default;
+
+    void SetFilesystemPosixTime();
+
+    std::shared_ptr<Service::PSC::Time::SystemClock> m_system_clock{};
+    std::shared_ptr<Service::PSC::Time::TimeZoneService> m_time_zone{};
+    bool m_initialized{};
+};
+
+} // namespace Service::Glue::Time

src/core/hle/service/glue/time/manager.cpp

@@ -0,0 +1,277 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include <chrono>
+
+#include "core/core.h"
+#include "core/core_timing.h"
+
+#include "common/settings.h"
+#include "common/time_zone.h"
+#include "core/file_sys/vfs.h"
+#include "core/hle/kernel/svc.h"
+#include "core/hle/service/glue/time/manager.h"
+#include "core/hle/service/glue/time/time_zone_binary.h"
+#include "core/hle/service/psc/time/service_manager.h"
+#include "core/hle/service/psc/time/static.h"
+#include "core/hle/service/psc/time/system_clock.h"
+#include "core/hle/service/psc/time/time_zone_service.h"
+#include "core/hle/service/set/system_settings_server.h"
+#include "core/hle/service/sm/sm.h"
+
+namespace Service::Glue::Time {
+namespace {
+
+template <typename T>
+T GetSettingsItemValue(std::shared_ptr<Service::Set::ISystemSettingsServer>& set_sys,
+                       const char* category, const char* name) {
+    std::vector<u8> interval_buf;
+    auto res = set_sys->GetSettingsItemValue(interval_buf, category, name);
+    ASSERT(res == ResultSuccess);
+
+    T v{};
+    std::memcpy(&v, interval_buf.data(), sizeof(T));
+    return v;
+}
+
+s64 CalendarTimeToEpoch(Service::PSC::Time::CalendarTime calendar) {
+    constexpr auto is_leap = [](s32 year) -> bool {
+        return (((year) % 4) == 0 && (((year) % 100) != 0 || ((year) % 400) == 0));
+    };
+    constexpr std::array<s32, 12> MonthStartDayOfYear{
+        0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334,
+    };
+
+    s16 month_s16{calendar.month};
+    s8 month{static_cast<s8>(((month_s16 * 43) & ~std::numeric_limits<s16>::max()) +
+                             ((month_s16 * 43) >> 9))};
+    s8 month_index{static_cast<s8>(calendar.month - 12 * month)};
+    if (month_index == 0) {
+        month_index = 12;
+    }
+    s32 year{(month + calendar.year) - !month_index};
+    s32 v8{year >= 0 ? year : year + 3};
+
+    s64 days_since_epoch = calendar.day + MonthStartDayOfYear[month_index - 1];
+    days_since_epoch += (year * 365) + (v8 / 4) - (year / 100) + (year / 400) - 365;
+
+    if (month_index <= 2 && is_leap(year)) {
+        days_since_epoch--;
+    }
+    auto epoch_s{((24ll * days_since_epoch + calendar.hour) * 60ll + calendar.minute) * 60ll +
+                 calendar.second};
+    return epoch_s - 62135683200ll;
+}
+
+s64 GetEpochTimeFromInitialYear(std::shared_ptr<Service::Set::ISystemSettingsServer>& set_sys) {
+    Service::PSC::Time::CalendarTime calendar{
+        .year = GetSettingsItemValue<s16>(set_sys, "time", "standard_user_clock_initial_year"),
+        .month = 1,
+        .day = 1,
+        .hour = 0,
+        .minute = 0,
+        .second = 0,
+    };
+    return CalendarTimeToEpoch(calendar);
+}
+
+Service::PSC::Time::LocationName GetTimeZoneString(Service::PSC::Time::LocationName& in_name) {
+    auto configured_zone = Settings::GetTimeZoneString(Settings::values.time_zone_index.GetValue());
+
+    Service::PSC::Time::LocationName configured_name{};
+    std::memcpy(configured_name.name.data(), configured_zone.data(),
+                std::min(configured_name.name.size(), configured_zone.size()));
+
+    if (!IsTimeZoneBinaryValid(configured_name)) {
+        configured_zone = Common::TimeZone::FindSystemTimeZone();
+        configured_name = {};
+        std::memcpy(configured_name.name.data(), configured_zone.data(),
+                    std::min(configured_name.name.size(), configured_zone.size()));
+    }
+
+    ASSERT_MSG(IsTimeZoneBinaryValid(configured_name), "Invalid time zone {}!",
+               configured_name.name.data());
+
+    return configured_name;
+}
+
+} // namespace
+
+TimeManager::TimeManager(Core::System& system)
+    : m_steady_clock_resource{system}, m_worker{system, m_steady_clock_resource,
+                                                m_file_timestamp_worker} {
+    m_time_m =
+        system.ServiceManager().GetService<Service::PSC::Time::ServiceManager>("time:m", true);
+
+    auto res = m_time_m->GetStaticServiceAsServiceManager(m_time_sm);
+    ASSERT(res == ResultSuccess);
+
+    m_set_sys =
+        system.ServiceManager().GetService<Service::Set::ISystemSettingsServer>("set:sys", true);
+
+    res = MountTimeZoneBinary(system);
+    ASSERT(res == ResultSuccess);
+
+    m_worker.Initialize(m_time_sm, m_set_sys);
+
+    res = m_time_sm->GetStandardUserSystemClock(m_file_timestamp_worker.m_system_clock);
+    ASSERT(res == ResultSuccess);
+
+    res = m_time_sm->GetTimeZoneService(m_file_timestamp_worker.m_time_zone);
+    ASSERT(res == ResultSuccess);
+
+    res = SetupStandardSteadyClockCore();
+    ASSERT(res == ResultSuccess);
+
+    Service::PSC::Time::SystemClockContext user_clock_context{};
+    res = m_set_sys->GetUserSystemClockContext(user_clock_context);
+    ASSERT(res == ResultSuccess);
+
+    // TODO the local clock should initialise with this epoch time, and be updated somewhere else on
+    // first boot to update it, but I haven't been able to find that point (likely via ntc's auto
+    // correct as it's defaulted to be enabled). So to get a time that isn't stuck in the past for
+    // first boot, grab the current real seconds.
+    auto epoch_time{GetEpochTimeFromInitialYear(m_set_sys)};
+    if (user_clock_context == Service::PSC::Time::SystemClockContext{}) {
+        m_steady_clock_resource.GetRtcTimeInSeconds(epoch_time);
+    }
+
+    res = m_time_m->SetupStandardLocalSystemClockCore(user_clock_context, epoch_time);
+    ASSERT(res == ResultSuccess);
+
+    Service::PSC::Time::SystemClockContext network_clock_context{};
+    res = m_set_sys->GetNetworkSystemClockContext(network_clock_context);
+    ASSERT(res == ResultSuccess);
+
+    auto network_accuracy_m{GetSettingsItemValue<s32>(
+        m_set_sys, "time", "standard_network_clock_sufficient_accuracy_minutes")};
+    auto one_minute_ns{
+        std::chrono::duration_cast<std::chrono::nanoseconds>(std::chrono::minutes(1)).count()};
+    s64 network_accuracy_ns{network_accuracy_m * one_minute_ns};
+
+    res = m_time_m->SetupStandardNetworkSystemClockCore(network_clock_context, network_accuracy_ns);
+    ASSERT(res == ResultSuccess);
+
+    bool is_automatic_correction_enabled{};
+    res = m_set_sys->IsUserSystemClockAutomaticCorrectionEnabled(is_automatic_correction_enabled);
+    ASSERT(res == ResultSuccess);
+
+    Service::PSC::Time::SteadyClockTimePoint automatic_correction_time_point{};
+    res = m_set_sys->GetUserSystemClockAutomaticCorrectionUpdatedTime(
+        automatic_correction_time_point);
+    ASSERT(res == ResultSuccess);
+
+    res = m_time_m->SetupStandardUserSystemClockCore(automatic_correction_time_point,
+                                                     is_automatic_correction_enabled);
+    ASSERT(res == ResultSuccess);
+
+    res = m_time_m->SetupEphemeralNetworkSystemClockCore();
+    ASSERT(res == ResultSuccess);
+
+    res = SetupTimeZoneServiceCore();
+    ASSERT(res == ResultSuccess);
+
+    s64 rtc_time_s{};
+    res = m_steady_clock_resource.GetRtcTimeInSeconds(rtc_time_s);
+    ASSERT(res == ResultSuccess);
+
+    // TODO system report "launch"
+    //      "rtc_reset" = m_steady_clock_resource.m_rtc_reset
+    //      "rtc_value" = rtc_time_s
+
+    m_worker.StartThread();
+
+    m_file_timestamp_worker.m_initialized = true;
+
+    s64 system_clock_time{};
+    if (m_file_timestamp_worker.m_system_clock->GetCurrentTime(system_clock_time) ==
+        ResultSuccess) {
+        Service::PSC::Time::CalendarTime calendar_time{};
+        Service::PSC::Time::CalendarAdditionalInfo calendar_additional{};
+        if (m_file_timestamp_worker.m_time_zone->ToCalendarTimeWithMyRule(
+                calendar_time, calendar_additional, system_clock_time) == ResultSuccess) {
+            // TODO IFileSystemProxy::SetCurrentPosixTime(system_clock_time,
+            // calendar_additional.ut_offset)
+        }
+    }
+}
+
+Result TimeManager::SetupStandardSteadyClockCore() {
+    Common::UUID external_clock_source_id{};
+    auto res = m_set_sys->GetExternalSteadyClockSourceId(external_clock_source_id);
+    ASSERT(res == ResultSuccess);
+
+    s64 external_steady_clock_internal_offset_s{};
+    res = m_set_sys->GetExternalSteadyClockInternalOffset(external_steady_clock_internal_offset_s);
+    ASSERT(res == ResultSuccess);
+
+    auto one_second_ns{
+        std::chrono::duration_cast<std::chrono::nanoseconds>(std::chrono::seconds(1)).count()};
+    s64 external_steady_clock_internal_offset_ns{external_steady_clock_internal_offset_s *
+                                                 one_second_ns};
+
+    s32 standard_steady_clock_test_offset_m{
+        GetSettingsItemValue<s32>(m_set_sys, "time", "standard_steady_clock_test_offset_minutes")};
+    auto one_minute_ns{
+        std::chrono::duration_cast<std::chrono::nanoseconds>(std::chrono::minutes(1)).count()};
+    s64 standard_steady_clock_test_offset_ns{standard_steady_clock_test_offset_m * one_minute_ns};
+
+    auto reset_detected = m_steady_clock_resource.GetResetDetected();
+    if (reset_detected) {
+        external_clock_source_id = {};
+    }
+
+    Common::UUID clock_source_id{};
+    m_steady_clock_resource.Initialize(&clock_source_id, &external_clock_source_id);
+
+    if (clock_source_id != external_clock_source_id) {
+        m_set_sys->SetExternalSteadyClockSourceId(clock_source_id);
+    }
+
+    res = m_time_m->SetupStandardSteadyClockCore(clock_source_id, m_steady_clock_resource.GetTime(),
+                                                 external_steady_clock_internal_offset_ns,
+                                                 standard_steady_clock_test_offset_ns,
+                                                 reset_detected);
+    ASSERT(res == ResultSuccess);
+    R_SUCCEED();
+}
+
+Result TimeManager::SetupTimeZoneServiceCore() {
+    Service::PSC::Time::LocationName name{};
+    auto res = m_set_sys->GetDeviceTimeZoneLocationName(name);
+    ASSERT(res == ResultSuccess);
+
+    auto configured_zone = GetTimeZoneString(name);
+
+    if (configured_zone.name != name.name) {
+        m_set_sys->SetDeviceTimeZoneLocationName(configured_zone);
+        name = configured_zone;
+
+        std::shared_ptr<Service::PSC::Time::SystemClock> local_clock;
+        m_time_sm->GetStandardLocalSystemClock(local_clock);
+        Service::PSC::Time::SystemClockContext context{};
+        local_clock->GetSystemClockContext(context);
+        m_set_sys->SetDeviceTimeZoneLocationUpdatedTime(context.steady_time_point);
+    }
+
+    Service::PSC::Time::SteadyClockTimePoint time_point{};
+    res = m_set_sys->GetDeviceTimeZoneLocationUpdatedTime(time_point);
+    ASSERT(res == ResultSuccess);
+
+    auto location_count = GetTimeZoneCount();
+    Service::PSC::Time::RuleVersion rule_version{};
+    GetTimeZoneVersion(rule_version);
+
+    std::span<const u8> rule_buffer{};
+    size_t rule_size{};
+    res = GetTimeZoneRule(rule_buffer, rule_size, name);
+    ASSERT(res == ResultSuccess);
+
+    res = m_time_m->SetupTimeZoneServiceCore(name, time_point, rule_version, location_count,
+                                             rule_buffer);
+    ASSERT(res == ResultSuccess);
+
+    R_SUCCEED();
+}
+
+} // namespace Service::Glue::Time

src/core/hle/service/glue/time/manager.h

@@ -0,0 +1,42 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <functional>
+#include <string>
+
+#include "common/common_types.h"
+#include "core/file_sys/vfs_types.h"
+#include "core/hle/service/glue/time/file_timestamp_worker.h"
+#include "core/hle/service/glue/time/standard_steady_clock_resource.h"
+#include "core/hle/service/glue/time/worker.h"
+#include "core/hle/service/service.h"
+
+namespace Core {
+class System;
+}
+
+namespace Service::PSC::Time {
+class ServiceManager;
+class StaticService;
+} // namespace Service::PSC::Time
+
+namespace Service::Glue::Time {
+class TimeManager {
+public:
+    explicit TimeManager(Core::System& system);
+
+    std::shared_ptr<Service::Set::ISystemSettingsServer> m_set_sys;
+
+    std::shared_ptr<Service::PSC::Time::ServiceManager> m_time_m{};
+    std::shared_ptr<Service::PSC::Time::StaticService> m_time_sm{};
+    StandardSteadyClockResource m_steady_clock_resource;
+    FileTimestampWorker m_file_timestamp_worker;
+    TimeWorker m_worker;
+
+private:
+    Result SetupStandardSteadyClockCore();
+    Result SetupTimeZoneServiceCore();
+};
+} // namespace Service::Glue::Time

src/core/hle/service/glue/time/pm_state_change_handler.cpp

@@ -0,0 +1,13 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/glue/time/pm_state_change_handler.h"
+
+namespace Service::Glue::Time {
+
+PmStateChangeHandler::PmStateChangeHandler(AlarmWorker& alarm_worker)
+    : m_alarm_worker{alarm_worker} {
+    // TODO Initialize IPmModule, dependent on Rtc and Fs
+}
+
+} // namespace Service::Glue::Time

src/core/hle/service/glue/time/pm_state_change_handler.h

@@ -0,0 +1,18 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "common/common_types.h"
+
+namespace Service::Glue::Time {
+class AlarmWorker;
+
+class PmStateChangeHandler {
+public:
+    explicit PmStateChangeHandler(AlarmWorker& alarm_worker);
+
+    AlarmWorker& m_alarm_worker;
+    s32 m_priority{};
+};
+} // namespace Service::Glue::Time

src/core/hle/service/glue/time/standard_steady_clock_resource.cpp

@@ -0,0 +1,123 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include <chrono>
+
+#include "common/settings.h"
+#include "core/core.h"
+#include "core/core_timing.h"
+#include "core/hle/kernel/svc.h"
+#include "core/hle/service/glue/time/standard_steady_clock_resource.h"
+#include "core/hle/service/psc/time/errors.h"
+
+namespace Service::Glue::Time {
+namespace {
+[[maybe_unused]] constexpr u32 Max77620PmicSession = 0x3A000001;
+[[maybe_unused]] constexpr u32 Max77620RtcSession = 0x3B000001;
+
+Result GetTimeInSeconds(Core::System& system, s64& out_time_s) {
+    out_time_s = std::chrono::duration_cast<std::chrono::seconds>(
+                     std::chrono::system_clock::now().time_since_epoch())
+                     .count();
+
+    if (Settings::values.custom_rtc_enabled) {
+        out_time_s += Settings::values.custom_rtc_offset.GetValue();
+    }
+    R_SUCCEED();
+}
+} // namespace
+
+StandardSteadyClockResource::StandardSteadyClockResource(Core::System& system) : m_system{system} {}
+
+void StandardSteadyClockResource::Initialize(Common::UUID* out_source_id,
+                                             Common::UUID* external_source_id) {
+    constexpr size_t NUM_TRIES{20};
+
+    size_t i{0};
+    Result res{ResultSuccess};
+    for (; i < NUM_TRIES; i++) {
+        res = SetCurrentTime();
+        if (res == ResultSuccess) {
+            break;
+        }
+        Kernel::Svc::SleepThread(m_system, std::chrono::duration_cast<std::chrono::nanoseconds>(
+                                               std::chrono::milliseconds(1))
+                                               .count());
+    }
+
+    if (i < NUM_TRIES) {
+        m_set_time_result = ResultSuccess;
+        if (*external_source_id != Service::PSC::Time::ClockSourceId{}) {
+            m_clock_source_id = *external_source_id;
+        } else {
+            m_clock_source_id = Common::UUID::MakeRandom();
+        }
+    } else {
+        m_set_time_result = res;
+        auto ticks{m_system.CoreTiming().GetClockTicks()};
+        m_time = -Service::PSC::Time::ConvertToTimeSpan(ticks).count();
+        m_clock_source_id = Common::UUID::MakeRandom();
+    }
+
+    if (out_source_id) {
+        *out_source_id = m_clock_source_id;
+    }
+}
+
+bool StandardSteadyClockResource::GetResetDetected() {
+    // TODO:
+    // call Rtc::GetRtcResetDetected(Max77620RtcSession)
+    // if detected:
+    //      SetSys::SetExternalSteadyClockSourceId(invalid_id)
+    //      Rtc::ClearRtcResetDetected(Max77620RtcSession)
+    // set m_rtc_reset to result
+    // Instead, only set reset to true if we're booting for the first time.
+    m_rtc_reset = false;
+    return m_rtc_reset;
+}
+
+Result StandardSteadyClockResource::SetCurrentTime() {
+    auto start_tick{m_system.CoreTiming().GetClockTicks()};
+
+    s64 rtc_time_s{};
+    // TODO R_TRY(Rtc::GetTimeInSeconds(rtc_time_s, Max77620RtcSession))
+    R_TRY(GetTimeInSeconds(m_system, rtc_time_s));
+
+    auto end_tick{m_system.CoreTiming().GetClockTicks()};
+    auto diff{Service::PSC::Time::ConvertToTimeSpan(end_tick - start_tick)};
+    // Why is this here?
+    R_UNLESS(diff < std::chrono::milliseconds(101), Service::PSC::Time::ResultRtcTimeout);
+
+    auto one_second_ns{
+        std::chrono::duration_cast<std::chrono::nanoseconds>(std::chrono::seconds(1)).count()};
+    s64 boot_time{rtc_time_s * one_second_ns -
+                  Service::PSC::Time::ConvertToTimeSpan(end_tick).count()};
+
+    std::scoped_lock l{m_mutex};
+    m_time = boot_time;
+    R_SUCCEED();
+}
+
+Result StandardSteadyClockResource::GetRtcTimeInSeconds(s64& out_time) {
+    // TODO
+    // R_TRY(Rtc::GetTimeInSeconds(time_s, Max77620RtcSession)
+    R_RETURN(GetTimeInSeconds(m_system, out_time));
+}
+
+void StandardSteadyClockResource::UpdateTime() {
+    constexpr size_t NUM_TRIES{3};
+
+    size_t i{0};
+    Result res{ResultSuccess};
+    for (; i < NUM_TRIES; i++) {
+        res = SetCurrentTime();
+        if (res == ResultSuccess) {
+            break;
+        }
+        Kernel::Svc::SleepThread(m_system, std::chrono::duration_cast<std::chrono::nanoseconds>(
+                                               std::chrono::milliseconds(1))
+                                               .count());
+    }
+}
+
+} // namespace Service::Glue::Time

src/core/hle/service/glue/time/standard_steady_clock_resource.h

@@ -0,0 +1,41 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <mutex>
+
+#include "common/common_types.h"
+#include "core/hle/result.h"
+#include "core/hle/service/psc/time/common.h"
+
+namespace Core {
+class System;
+}
+
+namespace Service::Glue::Time {
+class StandardSteadyClockResource {
+public:
+    StandardSteadyClockResource(Core::System& system);
+
+    void Initialize(Common::UUID* out_source_id, Common::UUID* external_source_id);
+
+    s64 GetTime() const {
+        return m_time;
+    }
+
+    bool GetResetDetected();
+    Result SetCurrentTime();
+    Result GetRtcTimeInSeconds(s64& out_time);
+    void UpdateTime();
+
+private:
+    Core::System& m_system;
+
+    std::mutex m_mutex;
+    Service::PSC::Time::ClockSourceId m_clock_source_id{};
+    s64 m_time{};
+    Result m_set_time_result;
+    bool m_rtc_reset;
+};
+} // namespace Service::Glue::Time

src/core/hle/service/glue/time/static.cpp

@@ -0,0 +1,448 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include <chrono>
+
+#include "core/core.h"
+#include "core/hle/kernel/k_shared_memory.h"
+#include "core/hle/kernel/svc.h"
+#include "core/hle/service/glue/time/file_timestamp_worker.h"
+#include "core/hle/service/glue/time/static.h"
+#include "core/hle/service/psc/time/errors.h"
+#include "core/hle/service/psc/time/service_manager.h"
+#include "core/hle/service/psc/time/static.h"
+#include "core/hle/service/psc/time/steady_clock.h"
+#include "core/hle/service/psc/time/system_clock.h"
+#include "core/hle/service/psc/time/time_zone_service.h"
+#include "core/hle/service/set/system_settings_server.h"
+#include "core/hle/service/sm/sm.h"
+
+namespace Service::Glue::Time {
+namespace {
+template <typename T>
+T GetSettingsItemValue(std::shared_ptr<Service::Set::ISystemSettingsServer>& set_sys,
+                       const char* category, const char* name) {
+    std::vector<u8> interval_buf;
+    auto res = set_sys->GetSettingsItemValue(interval_buf, category, name);
+    ASSERT(res == ResultSuccess);
+
+    T v{};
+    std::memcpy(&v, interval_buf.data(), sizeof(T));
+    return v;
+}
+} // namespace
+
+StaticService::StaticService(Core::System& system_,
+                             Service::PSC::Time::StaticServiceSetupInfo setup_info,
+                             std::shared_ptr<TimeManager> time, const char* name)
+    : ServiceFramework{system_, name}, m_system{system_}, m_time_m{time->m_time_m},
+      m_setup_info{setup_info}, m_time_sm{time->m_time_sm},
+      m_file_timestamp_worker{time->m_file_timestamp_worker}, m_standard_steady_clock_resource{
+                                                                  time->m_steady_clock_resource} {
+    // clang-format off
+        static const FunctionInfo functions[] = {
+            {0,   &StaticService::Handle_GetStandardUserSystemClock, "GetStandardUserSystemClock"},
+            {1,   &StaticService::Handle_GetStandardNetworkSystemClock, "GetStandardNetworkSystemClock"},
+            {2,   &StaticService::Handle_GetStandardSteadyClock, "GetStandardSteadyClock"},
+            {3,   &StaticService::Handle_GetTimeZoneService, "GetTimeZoneService"},
+            {4,   &StaticService::Handle_GetStandardLocalSystemClock, "GetStandardLocalSystemClock"},
+            {5,   &StaticService::Handle_GetEphemeralNetworkSystemClock, "GetEphemeralNetworkSystemClock"},
+            {20,  &StaticService::Handle_GetSharedMemoryNativeHandle, "GetSharedMemoryNativeHandle"},
+            {50,  &StaticService::Handle_SetStandardSteadyClockInternalOffset, "SetStandardSteadyClockInternalOffset"},
+            {51,  &StaticService::Handle_GetStandardSteadyClockRtcValue, "GetStandardSteadyClockRtcValue"},
+            {100, &StaticService::Handle_IsStandardUserSystemClockAutomaticCorrectionEnabled, "IsStandardUserSystemClockAutomaticCorrectionEnabled"},
+            {101, &StaticService::Handle_SetStandardUserSystemClockAutomaticCorrectionEnabled, "SetStandardUserSystemClockAutomaticCorrectionEnabled"},
+            {102, &StaticService::Handle_GetStandardUserSystemClockInitialYear, "GetStandardUserSystemClockInitialYear"},
+            {200, &StaticService::Handle_IsStandardNetworkSystemClockAccuracySufficient, "IsStandardNetworkSystemClockAccuracySufficient"},
+            {201, &StaticService::Handle_GetStandardUserSystemClockAutomaticCorrectionUpdatedTime, "GetStandardUserSystemClockAutomaticCorrectionUpdatedTime"},
+            {300, &StaticService::Handle_CalculateMonotonicSystemClockBaseTimePoint, "CalculateMonotonicSystemClockBaseTimePoint"},
+            {400, &StaticService::Handle_GetClockSnapshot, "GetClockSnapshot"},
+            {401, &StaticService::Handle_GetClockSnapshotFromSystemClockContext, "GetClockSnapshotFromSystemClockContext"},
+            {500, &StaticService::Handle_CalculateStandardUserSystemClockDifferenceByUser, "CalculateStandardUserSystemClockDifferenceByUser"},
+            {501, &StaticService::Handle_CalculateSpanBetween, "CalculateSpanBetween"},
+        };
+    // clang-format on
+
+    RegisterHandlers(functions);
+
+    m_set_sys =
+        m_system.ServiceManager().GetService<Service::Set::ISystemSettingsServer>("set:sys", true);
+
+    if (m_setup_info.can_write_local_clock && m_setup_info.can_write_user_clock &&
+        !m_setup_info.can_write_network_clock && m_setup_info.can_write_timezone_device_location &&
+        !m_setup_info.can_write_steady_clock && !m_setup_info.can_write_uninitialized_clock) {
+        m_time_m->GetStaticServiceAsAdmin(m_wrapped_service);
+    } else if (!m_setup_info.can_write_local_clock && !m_setup_info.can_write_user_clock &&
+               !m_setup_info.can_write_network_clock &&
+               !m_setup_info.can_write_timezone_device_location &&
+               !m_setup_info.can_write_steady_clock &&
+               !m_setup_info.can_write_uninitialized_clock) {
+        m_time_m->GetStaticServiceAsUser(m_wrapped_service);
+    } else if (!m_setup_info.can_write_local_clock && !m_setup_info.can_write_user_clock &&
+               !m_setup_info.can_write_network_clock &&
+               !m_setup_info.can_write_timezone_device_location &&
+               m_setup_info.can_write_steady_clock && !m_setup_info.can_write_uninitialized_clock) {
+        m_time_m->GetStaticServiceAsRepair(m_wrapped_service);
+    } else {
+        UNREACHABLE();
+    }
+
+    auto res = m_wrapped_service->GetTimeZoneService(m_time_zone);
+    ASSERT(res == ResultSuccess);
+}
+
+void StaticService::Handle_GetStandardUserSystemClock(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    std::shared_ptr<Service::PSC::Time::SystemClock> service{};
+    auto res = GetStandardUserSystemClock(service);
+
+    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    rb.Push(res);
+    rb.PushIpcInterface<Service::PSC::Time::SystemClock>(std::move(service));
+}
+
+void StaticService::Handle_GetStandardNetworkSystemClock(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    std::shared_ptr<Service::PSC::Time::SystemClock> service{};
+    auto res = GetStandardNetworkSystemClock(service);
+
+    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    rb.Push(res);
+    rb.PushIpcInterface<Service::PSC::Time::SystemClock>(std::move(service));
+}
+
+void StaticService::Handle_GetStandardSteadyClock(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    std::shared_ptr<Service::PSC::Time::SteadyClock> service{};
+    auto res = GetStandardSteadyClock(service);
+
+    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    rb.Push(res);
+    rb.PushIpcInterface(std::move(service));
+}
+
+void StaticService::Handle_GetTimeZoneService(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    std::shared_ptr<TimeZoneService> service{};
+    auto res = GetTimeZoneService(service);
+
+    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    rb.Push(res);
+    rb.PushIpcInterface(std::move(service));
+}
+
+void StaticService::Handle_GetStandardLocalSystemClock(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    std::shared_ptr<Service::PSC::Time::SystemClock> service{};
+    auto res = GetStandardLocalSystemClock(service);
+
+    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    rb.Push(res);
+    rb.PushIpcInterface<Service::PSC::Time::SystemClock>(std::move(service));
+}
+
+void StaticService::Handle_GetEphemeralNetworkSystemClock(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    std::shared_ptr<Service::PSC::Time::SystemClock> service{};
+    auto res = GetEphemeralNetworkSystemClock(service);
+
+    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    rb.Push(res);
+    rb.PushIpcInterface<Service::PSC::Time::SystemClock>(std::move(service));
+}
+
+void StaticService::Handle_GetSharedMemoryNativeHandle(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    Kernel::KSharedMemory* shared_memory{};
+    auto res = GetSharedMemoryNativeHandle(&shared_memory);
+
+    IPC::ResponseBuilder rb{ctx, 2, 1};
+    rb.Push(res);
+    rb.PushCopyObjects(shared_memory);
+}
+
+void StaticService::Handle_SetStandardSteadyClockInternalOffset(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::RequestParser rp{ctx};
+    auto offset_ns{rp.Pop<s64>()};
+
+    auto res = SetStandardSteadyClockInternalOffset(offset_ns);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(res);
+}
+
+void StaticService::Handle_GetStandardSteadyClockRtcValue(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    s64 rtc_value{};
+    auto res = GetStandardSteadyClockRtcValue(rtc_value);
+
+    IPC::ResponseBuilder rb{ctx, 4};
+    rb.Push(res);
+    rb.Push(rtc_value);
+}
+
+void StaticService::Handle_IsStandardUserSystemClockAutomaticCorrectionEnabled(
+    HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    bool is_enabled{};
+    auto res = IsStandardUserSystemClockAutomaticCorrectionEnabled(is_enabled);
+
+    IPC::ResponseBuilder rb{ctx, 3};
+    rb.Push(res);
+    rb.Push<bool>(is_enabled);
+}
+
+void StaticService::Handle_SetStandardUserSystemClockAutomaticCorrectionEnabled(
+    HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::RequestParser rp{ctx};
+    auto automatic_correction{rp.Pop<bool>()};
+
+    auto res = SetStandardUserSystemClockAutomaticCorrectionEnabled(automatic_correction);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(res);
+}
+
+void StaticService::Handle_GetStandardUserSystemClockInitialYear(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    s32 initial_year{};
+    auto res = GetStandardUserSystemClockInitialYear(initial_year);
+
+    IPC::ResponseBuilder rb{ctx, 3};
+    rb.Push(res);
+    rb.Push(initial_year);
+}
+
+void StaticService::Handle_IsStandardNetworkSystemClockAccuracySufficient(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    bool is_sufficient{};
+    auto res = IsStandardNetworkSystemClockAccuracySufficient(is_sufficient);
+
+    IPC::ResponseBuilder rb{ctx, 3};
+    rb.Push(res);
+    rb.Push<bool>(is_sufficient);
+}
+
+void StaticService::Handle_GetStandardUserSystemClockAutomaticCorrectionUpdatedTime(
+    HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    Service::PSC::Time::SteadyClockTimePoint time_point{};
+    auto res = GetStandardUserSystemClockAutomaticCorrectionUpdatedTime(time_point);
+
+    IPC::ResponseBuilder rb{ctx,
+                            2 + sizeof(Service::PSC::Time::SteadyClockTimePoint) / sizeof(u32)};
+    rb.Push(res);
+    rb.PushRaw<Service::PSC::Time::SteadyClockTimePoint>(time_point);
+}
+
+void StaticService::Handle_CalculateMonotonicSystemClockBaseTimePoint(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::RequestParser rp{ctx};
+    auto context{rp.PopRaw<Service::PSC::Time::SystemClockContext>()};
+
+    s64 time{};
+    auto res = CalculateMonotonicSystemClockBaseTimePoint(time, context);
+
+    IPC::ResponseBuilder rb{ctx, 4};
+    rb.Push(res);
+    rb.Push<s64>(time);
+}
+
+void StaticService::Handle_GetClockSnapshot(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::RequestParser rp{ctx};
+    auto type{rp.PopEnum<Service::PSC::Time::TimeType>()};
+
+    Service::PSC::Time::ClockSnapshot snapshot{};
+    auto res = GetClockSnapshot(snapshot, type);
+
+    ctx.WriteBuffer(snapshot);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(res);
+}
+
+void StaticService::Handle_GetClockSnapshotFromSystemClockContext(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::RequestParser rp{ctx};
+    auto clock_type{rp.PopEnum<Service::PSC::Time::TimeType>()};
+    [[maybe_unused]] auto alignment{rp.Pop<u32>()};
+    auto user_context{rp.PopRaw<Service::PSC::Time::SystemClockContext>()};
+    auto network_context{rp.PopRaw<Service::PSC::Time::SystemClockContext>()};
+
+    Service::PSC::Time::ClockSnapshot snapshot{};
+    auto res =
+        GetClockSnapshotFromSystemClockContext(snapshot, user_context, network_context, clock_type);
+
+    ctx.WriteBuffer(snapshot);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(res);
+}
+
+void StaticService::Handle_CalculateStandardUserSystemClockDifferenceByUser(
+    HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    Service::PSC::Time::ClockSnapshot a{};
+    Service::PSC::Time::ClockSnapshot b{};
+
+    auto a_buffer{ctx.ReadBuffer(0)};
+    auto b_buffer{ctx.ReadBuffer(1)};
+
+    std::memcpy(&a, a_buffer.data(), sizeof(Service::PSC::Time::ClockSnapshot));
+    std::memcpy(&b, b_buffer.data(), sizeof(Service::PSC::Time::ClockSnapshot));
+
+    s64 difference{};
+    auto res = CalculateStandardUserSystemClockDifferenceByUser(difference, a, b);
+
+    IPC::ResponseBuilder rb{ctx, 4};
+    rb.Push(res);
+    rb.Push(difference);
+}
+
+void StaticService::Handle_CalculateSpanBetween(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    Service::PSC::Time::ClockSnapshot a{};
+    Service::PSC::Time::ClockSnapshot b{};
+
+    auto a_buffer{ctx.ReadBuffer(0)};
+    auto b_buffer{ctx.ReadBuffer(1)};
+
+    std::memcpy(&a, a_buffer.data(), sizeof(Service::PSC::Time::ClockSnapshot));
+    std::memcpy(&b, b_buffer.data(), sizeof(Service::PSC::Time::ClockSnapshot));
+
+    s64 time{};
+    auto res = CalculateSpanBetween(time, a, b);
+
+    IPC::ResponseBuilder rb{ctx, 4};
+    rb.Push(res);
+    rb.Push(time);
+}
+
+// =============================== Implementations ===========================
+
+Result StaticService::GetStandardUserSystemClock(
+    std::shared_ptr<Service::PSC::Time::SystemClock>& out_service) {
+    R_RETURN(m_wrapped_service->GetStandardUserSystemClock(out_service));
+}
+
+Result StaticService::GetStandardNetworkSystemClock(
+    std::shared_ptr<Service::PSC::Time::SystemClock>& out_service) {
+    R_RETURN(m_wrapped_service->GetStandardNetworkSystemClock(out_service));
+}
+
+Result StaticService::GetStandardSteadyClock(
+    std::shared_ptr<Service::PSC::Time::SteadyClock>& out_service) {
+    R_RETURN(m_wrapped_service->GetStandardSteadyClock(out_service));
+}
+
+Result StaticService::GetTimeZoneService(std::shared_ptr<TimeZoneService>& out_service) {
+    out_service = std::make_shared<TimeZoneService>(m_system, m_file_timestamp_worker,
+                                                    m_setup_info.can_write_timezone_device_location,
+                                                    m_time_zone);
+    R_SUCCEED();
+}
+
+Result StaticService::GetStandardLocalSystemClock(
+    std::shared_ptr<Service::PSC::Time::SystemClock>& out_service) {
+    R_RETURN(m_wrapped_service->GetStandardLocalSystemClock(out_service));
+}
+
+Result StaticService::GetEphemeralNetworkSystemClock(
+    std::shared_ptr<Service::PSC::Time::SystemClock>& out_service) {
+    R_RETURN(m_wrapped_service->GetEphemeralNetworkSystemClock(out_service));
+}
+
+Result StaticService::GetSharedMemoryNativeHandle(Kernel::KSharedMemory** out_shared_memory) {
+    R_RETURN(m_wrapped_service->GetSharedMemoryNativeHandle(out_shared_memory));
+}
+
+Result StaticService::SetStandardSteadyClockInternalOffset(s64 offset_ns) {
+    R_UNLESS(m_setup_info.can_write_steady_clock, Service::PSC::Time::ResultPermissionDenied);
+
+    R_RETURN(m_set_sys->SetExternalSteadyClockInternalOffset(
+        offset_ns /
+        std::chrono::duration_cast<std::chrono::nanoseconds>(std::chrono::seconds(1)).count()));
+}
+
+Result StaticService::GetStandardSteadyClockRtcValue(s64& out_rtc_value) {
+    R_RETURN(m_standard_steady_clock_resource.GetRtcTimeInSeconds(out_rtc_value));
+}
+
+Result StaticService::IsStandardUserSystemClockAutomaticCorrectionEnabled(
+    bool& out_automatic_correction) {
+    R_RETURN(m_wrapped_service->IsStandardUserSystemClockAutomaticCorrectionEnabled(
+        out_automatic_correction));
+}
+
+Result StaticService::SetStandardUserSystemClockAutomaticCorrectionEnabled(
+    bool automatic_correction) {
+    R_RETURN(m_wrapped_service->SetStandardUserSystemClockAutomaticCorrectionEnabled(
+        automatic_correction));
+}
+
+Result StaticService::GetStandardUserSystemClockInitialYear(s32& out_year) {
+    out_year = GetSettingsItemValue<s32>(m_set_sys, "time", "standard_user_clock_initial_year");
+    R_SUCCEED();
+}
+
+Result StaticService::IsStandardNetworkSystemClockAccuracySufficient(bool& out_is_sufficient) {
+    R_RETURN(m_wrapped_service->IsStandardNetworkSystemClockAccuracySufficient(out_is_sufficient));
+}
+
+Result StaticService::GetStandardUserSystemClockAutomaticCorrectionUpdatedTime(
+    Service::PSC::Time::SteadyClockTimePoint& out_time_point) {
+    R_RETURN(m_wrapped_service->GetStandardUserSystemClockAutomaticCorrectionUpdatedTime(
+        out_time_point));
+}
+
+Result StaticService::CalculateMonotonicSystemClockBaseTimePoint(
+    s64& out_time, Service::PSC::Time::SystemClockContext& context) {
+    R_RETURN(m_wrapped_service->CalculateMonotonicSystemClockBaseTimePoint(out_time, context));
+}
+
+Result StaticService::GetClockSnapshot(Service::PSC::Time::ClockSnapshot& out_snapshot,
+                                       Service::PSC::Time::TimeType type) {
+    R_RETURN(m_wrapped_service->GetClockSnapshot(out_snapshot, type));
+}
+
+Result StaticService::GetClockSnapshotFromSystemClockContext(
+    Service::PSC::Time::ClockSnapshot& out_snapshot,
+    Service::PSC::Time::SystemClockContext& user_context,
+    Service::PSC::Time::SystemClockContext& network_context, Service::PSC::Time::TimeType type) {
+    R_RETURN(m_wrapped_service->GetClockSnapshotFromSystemClockContext(out_snapshot, user_context,
+                                                                       network_context, type));
+}
+
+Result StaticService::CalculateStandardUserSystemClockDifferenceByUser(
+    s64& out_time, Service::PSC::Time::ClockSnapshot& a, Service::PSC::Time::ClockSnapshot& b) {
+    R_RETURN(m_wrapped_service->CalculateStandardUserSystemClockDifferenceByUser(out_time, a, b));
+}
+
+Result StaticService::CalculateSpanBetween(s64& out_time, Service::PSC::Time::ClockSnapshot& a,
+                                           Service::PSC::Time::ClockSnapshot& b) {
+    R_RETURN(m_wrapped_service->CalculateSpanBetween(out_time, a, b));
+}
+
+} // namespace Service::Glue::Time

src/core/hle/service/glue/time/static.h

@@ -0,0 +1,110 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "common/common_types.h"
+#include "core/hle/service/glue/time/manager.h"
+#include "core/hle/service/glue/time/time_zone.h"
+#include "core/hle/service/psc/time/common.h"
+
+namespace Core {
+class System;
+}
+
+namespace Service::Set {
+class ISystemSettingsServer;
+}
+
+namespace Service::PSC::Time {
+class StaticService;
+class SystemClock;
+class SteadyClock;
+class TimeZoneService;
+class ServiceManager;
+} // namespace Service::PSC::Time
+
+namespace Service::Glue::Time {
+class FileTimestampWorker;
+class StandardSteadyClockResource;
+
+class StaticService final : public ServiceFramework<StaticService> {
+public:
+    explicit StaticService(Core::System& system,
+                           Service::PSC::Time::StaticServiceSetupInfo setup_info,
+                           std::shared_ptr<TimeManager> time, const char* name);
+
+    ~StaticService() override = default;
+
+    Result GetStandardUserSystemClock(
+        std::shared_ptr<Service::PSC::Time::SystemClock>& out_service);
+    Result GetStandardNetworkSystemClock(
+        std::shared_ptr<Service::PSC::Time::SystemClock>& out_service);
+    Result GetStandardSteadyClock(std::shared_ptr<Service::PSC::Time::SteadyClock>& out_service);
+    Result GetTimeZoneService(std::shared_ptr<TimeZoneService>& out_service);
+    Result GetStandardLocalSystemClock(
+        std::shared_ptr<Service::PSC::Time::SystemClock>& out_service);
+    Result GetEphemeralNetworkSystemClock(
+        std::shared_ptr<Service::PSC::Time::SystemClock>& out_service);
+    Result GetSharedMemoryNativeHandle(Kernel::KSharedMemory** out_shared_memory);
+    Result SetStandardSteadyClockInternalOffset(s64 offset);
+    Result GetStandardSteadyClockRtcValue(s64& out_rtc_value);
+    Result IsStandardUserSystemClockAutomaticCorrectionEnabled(bool& out_automatic_correction);
+    Result SetStandardUserSystemClockAutomaticCorrectionEnabled(bool automatic_correction);
+    Result GetStandardUserSystemClockInitialYear(s32& out_year);
+    Result IsStandardNetworkSystemClockAccuracySufficient(bool& out_is_sufficient);
+    Result GetStandardUserSystemClockAutomaticCorrectionUpdatedTime(
+        Service::PSC::Time::SteadyClockTimePoint& out_time_point);
+    Result CalculateMonotonicSystemClockBaseTimePoint(
+        s64& out_time, Service::PSC::Time::SystemClockContext& context);
+    Result GetClockSnapshot(Service::PSC::Time::ClockSnapshot& out_snapshot,
+                            Service::PSC::Time::TimeType type);
+    Result GetClockSnapshotFromSystemClockContext(
+        Service::PSC::Time::ClockSnapshot& out_snapshot,
+        Service::PSC::Time::SystemClockContext& user_context,
+        Service::PSC::Time::SystemClockContext& network_context, Service::PSC::Time::TimeType type);
+    Result CalculateStandardUserSystemClockDifferenceByUser(s64& out_time,
+                                                            Service::PSC::Time::ClockSnapshot& a,
+                                                            Service::PSC::Time::ClockSnapshot& b);
+    Result CalculateSpanBetween(s64& out_time, Service::PSC::Time::ClockSnapshot& a,
+                                Service::PSC::Time::ClockSnapshot& b);
+
+private:
+    Result GetClockSnapshotImpl(Service::PSC::Time::ClockSnapshot& out_snapshot,
+                                Service::PSC::Time::SystemClockContext& user_context,
+                                Service::PSC::Time::SystemClockContext& network_context,
+                                Service::PSC::Time::TimeType type);
+
+    void Handle_GetStandardUserSystemClock(HLERequestContext& ctx);
+    void Handle_GetStandardNetworkSystemClock(HLERequestContext& ctx);
+    void Handle_GetStandardSteadyClock(HLERequestContext& ctx);
+    void Handle_GetTimeZoneService(HLERequestContext& ctx);
+    void Handle_GetStandardLocalSystemClock(HLERequestContext& ctx);
+    void Handle_GetEphemeralNetworkSystemClock(HLERequestContext& ctx);
+    void Handle_GetSharedMemoryNativeHandle(HLERequestContext& ctx);
+    void Handle_SetStandardSteadyClockInternalOffset(HLERequestContext& ctx);
+    void Handle_GetStandardSteadyClockRtcValue(HLERequestContext& ctx);
+    void Handle_IsStandardUserSystemClockAutomaticCorrectionEnabled(HLERequestContext& ctx);
+    void Handle_SetStandardUserSystemClockAutomaticCorrectionEnabled(HLERequestContext& ctx);
+    void Handle_GetStandardUserSystemClockInitialYear(HLERequestContext& ctx);
+    void Handle_IsStandardNetworkSystemClockAccuracySufficient(HLERequestContext& ctx);
+    void Handle_GetStandardUserSystemClockAutomaticCorrectionUpdatedTime(HLERequestContext& ctx);
+    void Handle_CalculateMonotonicSystemClockBaseTimePoint(HLERequestContext& ctx);
+    void Handle_GetClockSnapshot(HLERequestContext& ctx);
+    void Handle_GetClockSnapshotFromSystemClockContext(HLERequestContext& ctx);
+    void Handle_CalculateStandardUserSystemClockDifferenceByUser(HLERequestContext& ctx);
+    void Handle_CalculateSpanBetween(HLERequestContext& ctx);
+
+    Core::System& m_system;
+
+    std::shared_ptr<Service::Set::ISystemSettingsServer> m_set_sys;
+    std::shared_ptr<Service::PSC::Time::ServiceManager> m_time_m;
+    std::shared_ptr<Service::PSC::Time::StaticService> m_wrapped_service;
+
+    Service::PSC::Time::StaticServiceSetupInfo m_setup_info;
+    std::shared_ptr<Service::PSC::Time::StaticService> m_time_sm;
+    std::shared_ptr<Service::PSC::Time::TimeZoneService> m_time_zone;
+    FileTimestampWorker& m_file_timestamp_worker;
+    StandardSteadyClockResource& m_standard_steady_clock_resource;
+};
+} // namespace Service::Glue::Time

src/core/hle/service/glue/time/time_zone.cpp

@@ -0,0 +1,377 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include <chrono>
+
+#include "core/core.h"
+#include "core/hle/kernel/svc.h"
+#include "core/hle/service/glue/time/file_timestamp_worker.h"
+#include "core/hle/service/glue/time/time_zone.h"
+#include "core/hle/service/glue/time/time_zone_binary.h"
+#include "core/hle/service/psc/time/time_zone_service.h"
+#include "core/hle/service/set/system_settings_server.h"
+#include "core/hle/service/sm/sm.h"
+
+namespace Service::Glue::Time {
+namespace {
+static std::mutex g_list_mutex;
+static Common::IntrusiveListBaseTraits<Service::PSC::Time::OperationEvent>::ListType g_list_nodes{};
+} // namespace
+
+TimeZoneService::TimeZoneService(
+    Core::System& system_, FileTimestampWorker& file_timestamp_worker,
+    bool can_write_timezone_device_location,
+    std::shared_ptr<Service::PSC::Time::TimeZoneService> time_zone_service)
+    : ServiceFramework{system_, "ITimeZoneService"}, m_system{system},
+      m_can_write_timezone_device_location{can_write_timezone_device_location},
+      m_file_timestamp_worker{file_timestamp_worker},
+      m_wrapped_service{std::move(time_zone_service)}, m_operation_event{m_system} {
+    // clang-format off
+    static const FunctionInfo functions[] = {
+        {0,   &TimeZoneService::Handle_GetDeviceLocationName, "GetDeviceLocationName"},
+        {1,   &TimeZoneService::Handle_SetDeviceLocationName, "SetDeviceLocationName"},
+        {2,   &TimeZoneService::Handle_GetTotalLocationNameCount, "GetTotalLocationNameCount"},
+        {3,   &TimeZoneService::Handle_LoadLocationNameList, "LoadLocationNameList"},
+        {4,   &TimeZoneService::Handle_LoadTimeZoneRule, "LoadTimeZoneRule"},
+        {5,   &TimeZoneService::Handle_GetTimeZoneRuleVersion, "GetTimeZoneRuleVersion"},
+        {6,   &TimeZoneService::Handle_GetDeviceLocationNameAndUpdatedTime, "GetDeviceLocationNameAndUpdatedTime"},
+        {7,   &TimeZoneService::Handle_SetDeviceLocationNameWithTimeZoneRule, "SetDeviceLocationNameWithTimeZoneRule"},
+        {8,   &TimeZoneService::Handle_ParseTimeZoneBinary, "ParseTimeZoneBinary"},
+        {20,  &TimeZoneService::Handle_GetDeviceLocationNameOperationEventReadableHandle, "GetDeviceLocationNameOperationEventReadableHandle"},
+        {100, &TimeZoneService::Handle_ToCalendarTime, "ToCalendarTime"},
+        {101, &TimeZoneService::Handle_ToCalendarTimeWithMyRule, "ToCalendarTimeWithMyRule"},
+        {201, &TimeZoneService::Handle_ToPosixTime, "ToPosixTime"},
+        {202, &TimeZoneService::Handle_ToPosixTimeWithMyRule, "ToPosixTimeWithMyRule"},
+    };
+    // clang-format on
+    RegisterHandlers(functions);
+
+    g_list_nodes.clear();
+    m_set_sys =
+        m_system.ServiceManager().GetService<Service::Set::ISystemSettingsServer>("set:sys", true);
+}
+
+TimeZoneService::~TimeZoneService() = default;
+
+void TimeZoneService::Handle_GetDeviceLocationName(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    Service::PSC::Time::LocationName name{};
+    auto res = GetDeviceLocationName(name);
+
+    IPC::ResponseBuilder rb{ctx, 2 + sizeof(Service::PSC::Time::LocationName) / sizeof(u32)};
+    rb.Push(res);
+    rb.PushRaw<Service::PSC::Time::LocationName>(name);
+}
+
+void TimeZoneService::Handle_SetDeviceLocationName(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::RequestParser rp{ctx};
+    auto name{rp.PopRaw<Service::PSC::Time::LocationName>()};
+
+    auto res = SetDeviceLocation(name);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(res);
+}
+
+void TimeZoneService::Handle_GetTotalLocationNameCount(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    u32 count{};
+    auto res = GetTotalLocationNameCount(count);
+
+    IPC::ResponseBuilder rb{ctx, 3};
+    rb.Push(res);
+    rb.Push(count);
+}
+
+void TimeZoneService::Handle_LoadLocationNameList(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::RequestParser rp{ctx};
+    auto index{rp.Pop<u32>()};
+
+    auto max_names{ctx.GetWriteBufferSize() / sizeof(Service::PSC::Time::LocationName)};
+
+    std::vector<Service::PSC::Time::LocationName> names{};
+    u32 count{};
+    auto res = LoadLocationNameList(count, names, max_names, index);
+
+    ctx.WriteBuffer(names);
+
+    IPC::ResponseBuilder rb{ctx, 3};
+    rb.Push(res);
+    rb.Push(count);
+}
+
+void TimeZoneService::Handle_LoadTimeZoneRule(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::RequestParser rp{ctx};
+    auto name{rp.PopRaw<Service::PSC::Time::LocationName>()};
+
+    Tz::Rule rule{};
+    auto res = LoadTimeZoneRule(rule, name);
+
+    ctx.WriteBuffer(rule);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(res);
+}
+
+void TimeZoneService::Handle_GetTimeZoneRuleVersion(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    Service::PSC::Time::RuleVersion rule_version{};
+    auto res = GetTimeZoneRuleVersion(rule_version);
+
+    IPC::ResponseBuilder rb{ctx, 2 + sizeof(Service::PSC::Time::RuleVersion) / sizeof(u32)};
+    rb.Push(res);
+    rb.PushRaw<Service::PSC::Time::RuleVersion>(rule_version);
+}
+
+void TimeZoneService::Handle_GetDeviceLocationNameAndUpdatedTime(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    Service::PSC::Time::LocationName name{};
+    Service::PSC::Time::SteadyClockTimePoint time_point{};
+    auto res = GetDeviceLocationNameAndUpdatedTime(time_point, name);
+
+    IPC::ResponseBuilder rb{ctx,
+                            2 + (sizeof(Service::PSC::Time::LocationName) / sizeof(u32)) +
+                                (sizeof(Service::PSC::Time::SteadyClockTimePoint) / sizeof(u32))};
+    rb.Push(res);
+    rb.PushRaw<Service::PSC::Time::LocationName>(name);
+    rb.PushRaw<Service::PSC::Time::SteadyClockTimePoint>(time_point);
+}
+
+void TimeZoneService::Handle_SetDeviceLocationNameWithTimeZoneRule(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    auto res = SetDeviceLocationNameWithTimeZoneRule();
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(res);
+}
+
+void TimeZoneService::Handle_ParseTimeZoneBinary(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(Service::PSC::Time::ResultNotImplemented);
+}
+
+void TimeZoneService::Handle_GetDeviceLocationNameOperationEventReadableHandle(
+    HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    Kernel::KEvent* event{};
+    auto res = GetDeviceLocationNameOperationEventReadableHandle(&event);
+
+    IPC::ResponseBuilder rb{ctx, 2, 1};
+    rb.Push(res);
+    rb.PushCopyObjects(event->GetReadableEvent());
+}
+
+void TimeZoneService::Handle_ToCalendarTime(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::RequestParser rp{ctx};
+    auto time{rp.Pop<s64>()};
+
+    auto rule_buffer{ctx.ReadBuffer()};
+    Tz::Rule rule{};
+    std::memcpy(&rule, rule_buffer.data(), sizeof(Tz::Rule));
+
+    Service::PSC::Time::CalendarTime calendar_time{};
+    Service::PSC::Time::CalendarAdditionalInfo additional_info{};
+    auto res = ToCalendarTime(calendar_time, additional_info, time, rule);
+
+    IPC::ResponseBuilder rb{ctx,
+                            2 + (sizeof(Service::PSC::Time::CalendarTime) / sizeof(u32)) +
+                                (sizeof(Service::PSC::Time::CalendarAdditionalInfo) / sizeof(u32))};
+    rb.Push(res);
+    rb.PushRaw<Service::PSC::Time::CalendarTime>(calendar_time);
+    rb.PushRaw<Service::PSC::Time::CalendarAdditionalInfo>(additional_info);
+}
+
+void TimeZoneService::Handle_ToCalendarTimeWithMyRule(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    auto time{rp.Pop<s64>()};
+
+    LOG_DEBUG(Service_Time, "called. time={}", time);
+
+    Service::PSC::Time::CalendarTime calendar_time{};
+    Service::PSC::Time::CalendarAdditionalInfo additional_info{};
+    auto res = ToCalendarTimeWithMyRule(calendar_time, additional_info, time);
+
+    IPC::ResponseBuilder rb{ctx,
+                            2 + (sizeof(Service::PSC::Time::CalendarTime) / sizeof(u32)) +
+                                (sizeof(Service::PSC::Time::CalendarAdditionalInfo) / sizeof(u32))};
+    rb.Push(res);
+    rb.PushRaw<Service::PSC::Time::CalendarTime>(calendar_time);
+    rb.PushRaw<Service::PSC::Time::CalendarAdditionalInfo>(additional_info);
+}
+
+void TimeZoneService::Handle_ToPosixTime(HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    auto calendar{rp.PopRaw<Service::PSC::Time::CalendarTime>()};
+
+    LOG_DEBUG(Service_Time, "called. calendar year {} month {} day {} hour {} minute {} second {}",
+              calendar.year, calendar.month, calendar.day, calendar.hour, calendar.minute,
+              calendar.second);
+
+    auto binary{ctx.ReadBuffer()};
+
+    Tz::Rule rule{};
+    std::memcpy(&rule, binary.data(), sizeof(Tz::Rule));
+
+    u32 count{};
+    std::array<s64, 2> times{};
+    u32 times_count{static_cast<u32>(ctx.GetWriteBufferSize() / sizeof(s64))};
+
+    auto res = ToPosixTime(count, times, times_count, calendar, rule);
+
+    ctx.WriteBuffer(times);
+
+    IPC::ResponseBuilder rb{ctx, 3};
+    rb.Push(res);
+    rb.Push(count);
+}
+
+void TimeZoneService::Handle_ToPosixTimeWithMyRule(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::RequestParser rp{ctx};
+    auto calendar{rp.PopRaw<Service::PSC::Time::CalendarTime>()};
+
+    u32 count{};
+    std::array<s64, 2> times{};
+    u32 times_count{static_cast<u32>(ctx.GetWriteBufferSize() / sizeof(s64))};
+
+    auto res = ToPosixTimeWithMyRule(count, times, times_count, calendar);
+
+    ctx.WriteBuffer(times);
+
+    IPC::ResponseBuilder rb{ctx, 3};
+    rb.Push(res);
+    rb.Push(count);
+}
+
+// =============================== Implementations ===========================
+
+Result TimeZoneService::GetDeviceLocationName(Service::PSC::Time::LocationName& out_location_name) {
+    R_RETURN(m_wrapped_service->GetDeviceLocationName(out_location_name));
+}
+
+Result TimeZoneService::SetDeviceLocation(Service::PSC::Time::LocationName& location_name) {
+    R_UNLESS(m_can_write_timezone_device_location, Service::PSC::Time::ResultPermissionDenied);
+    R_UNLESS(IsTimeZoneBinaryValid(location_name), Service::PSC::Time::ResultTimeZoneNotFound);
+
+    std::scoped_lock l{m_mutex};
+
+    std::span<const u8> binary{};
+    size_t binary_size{};
+    R_TRY(GetTimeZoneRule(binary, binary_size, location_name))
+
+    R_TRY(m_wrapped_service->SetDeviceLocationNameWithTimeZoneRule(location_name, binary));
+
+    m_file_timestamp_worker.SetFilesystemPosixTime();
+
+    Service::PSC::Time::SteadyClockTimePoint time_point{};
+    Service::PSC::Time::LocationName name{};
+    R_TRY(m_wrapped_service->GetDeviceLocationNameAndUpdatedTime(time_point, name));
+
+    m_set_sys->SetDeviceTimeZoneLocationName(name);
+    m_set_sys->SetDeviceTimeZoneLocationUpdatedTime(time_point);
+
+    std::scoped_lock m{g_list_mutex};
+    for (auto& operation_event : g_list_nodes) {
+        operation_event.m_event->Signal();
+    }
+    R_SUCCEED();
+}
+
+Result TimeZoneService::GetTotalLocationNameCount(u32& out_count) {
+    R_RETURN(m_wrapped_service->GetTotalLocationNameCount(out_count));
+}
+
+Result TimeZoneService::LoadLocationNameList(
+    u32& out_count, std::vector<Service::PSC::Time::LocationName>& out_names, size_t max_names,
+    u32 index) {
+    std::scoped_lock l{m_mutex};
+    R_RETURN(GetTimeZoneLocationList(out_count, out_names, max_names, index));
+}
+
+Result TimeZoneService::LoadTimeZoneRule(Tz::Rule& out_rule,
+                                         Service::PSC::Time::LocationName& name) {
+    std::scoped_lock l{m_mutex};
+    std::span<const u8> binary{};
+    size_t binary_size{};
+    R_TRY(GetTimeZoneRule(binary, binary_size, name))
+    R_RETURN(m_wrapped_service->ParseTimeZoneBinary(out_rule, binary));
+}
+
+Result TimeZoneService::GetTimeZoneRuleVersion(Service::PSC::Time::RuleVersion& out_rule_version) {
+    R_RETURN(m_wrapped_service->GetTimeZoneRuleVersion(out_rule_version));
+}
+
+Result TimeZoneService::GetDeviceLocationNameAndUpdatedTime(
+    Service::PSC::Time::SteadyClockTimePoint& out_time_point,
+    Service::PSC::Time::LocationName& location_name) {
+    R_RETURN(m_wrapped_service->GetDeviceLocationNameAndUpdatedTime(out_time_point, location_name));
+}
+
+Result TimeZoneService::SetDeviceLocationNameWithTimeZoneRule() {
+    R_UNLESS(m_can_write_timezone_device_location, Service::PSC::Time::ResultPermissionDenied);
+    R_RETURN(Service::PSC::Time::ResultNotImplemented);
+}
+
+Result TimeZoneService::GetDeviceLocationNameOperationEventReadableHandle(
+    Kernel::KEvent** out_event) {
+    if (!operation_event_initialized) {
+        operation_event_initialized = false;
+
+        m_operation_event.m_ctx.CloseEvent(m_operation_event.m_event);
+        m_operation_event.m_event =
+            m_operation_event.m_ctx.CreateEvent("Psc:TimeZoneService:OperationEvent");
+        operation_event_initialized = true;
+        std::scoped_lock l{m_mutex};
+        g_list_nodes.push_back(m_operation_event);
+    }
+
+    *out_event = m_operation_event.m_event;
+    R_SUCCEED();
+}
+
+Result TimeZoneService::ToCalendarTime(
+    Service::PSC::Time::CalendarTime& out_calendar_time,
+    Service::PSC::Time::CalendarAdditionalInfo& out_additional_info, s64 time, Tz::Rule& rule) {
+    R_RETURN(m_wrapped_service->ToCalendarTime(out_calendar_time, out_additional_info, time, rule));
+}
+
+Result TimeZoneService::ToCalendarTimeWithMyRule(
+    Service::PSC::Time::CalendarTime& out_calendar_time,
+    Service::PSC::Time::CalendarAdditionalInfo& out_additional_info, s64 time) {
+    R_RETURN(
+        m_wrapped_service->ToCalendarTimeWithMyRule(out_calendar_time, out_additional_info, time));
+}
+
+Result TimeZoneService::ToPosixTime(u32& out_count, std::span<s64, 2> out_times,
+                                    u32 out_times_count,
+                                    Service::PSC::Time::CalendarTime& calendar_time,
+                                    Tz::Rule& rule) {
+    R_RETURN(
+        m_wrapped_service->ToPosixTime(out_count, out_times, out_times_count, calendar_time, rule));
+}
+
+Result TimeZoneService::ToPosixTimeWithMyRule(u32& out_count, std::span<s64, 2> out_times,
+                                              u32 out_times_count,
+                                              Service::PSC::Time::CalendarTime& calendar_time) {
+    R_RETURN(m_wrapped_service->ToPosixTimeWithMyRule(out_count, out_times, out_times_count,
+                                                      calendar_time));
+}
+
+} // namespace Service::Glue::Time

src/core/hle/service/glue/time/time_zone.h

@@ -0,0 +1,95 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <memory>
+#include <mutex>
+#include <span>
+#include <vector>
+
+#include "core/hle/service/ipc_helpers.h"
+#include "core/hle/service/psc/time/common.h"
+#include "core/hle/service/server_manager.h"
+#include "core/hle/service/service.h"
+
+namespace Core {
+class System;
+}
+
+namespace Tz {
+struct Rule;
+}
+
+namespace Service::Set {
+class ISystemSettingsServer;
+}
+
+namespace Service::PSC::Time {
+class TimeZoneService;
+}
+
+namespace Service::Glue::Time {
+class FileTimestampWorker;
+
+class TimeZoneService final : public ServiceFramework<TimeZoneService> {
+public:
+    explicit TimeZoneService(
+        Core::System& system, FileTimestampWorker& file_timestamp_worker,
+        bool can_write_timezone_device_location,
+        std::shared_ptr<Service::PSC::Time::TimeZoneService> time_zone_service);
+
+    ~TimeZoneService() override;
+
+    Result GetDeviceLocationName(Service::PSC::Time::LocationName& out_location_name);
+    Result SetDeviceLocation(Service::PSC::Time::LocationName& location_name);
+    Result GetTotalLocationNameCount(u32& out_count);
+    Result LoadLocationNameList(u32& out_count,
+                                std::vector<Service::PSC::Time::LocationName>& out_names,
+                                size_t max_names, u32 index);
+    Result LoadTimeZoneRule(Tz::Rule& out_rule, Service::PSC::Time::LocationName& name);
+    Result GetTimeZoneRuleVersion(Service::PSC::Time::RuleVersion& out_rule_version);
+    Result GetDeviceLocationNameAndUpdatedTime(
+        Service::PSC::Time::SteadyClockTimePoint& out_time_point,
+        Service::PSC::Time::LocationName& location_name);
+    Result SetDeviceLocationNameWithTimeZoneRule();
+    Result GetDeviceLocationNameOperationEventReadableHandle(Kernel::KEvent** out_event);
+    Result ToCalendarTime(Service::PSC::Time::CalendarTime& out_calendar_time,
+                          Service::PSC::Time::CalendarAdditionalInfo& out_additional_info, s64 time,
+                          Tz::Rule& rule);
+    Result ToCalendarTimeWithMyRule(Service::PSC::Time::CalendarTime& out_calendar_time,
+                                    Service::PSC::Time::CalendarAdditionalInfo& out_additional_info,
+                                    s64 time);
+    Result ToPosixTime(u32& out_count, std::span<s64, 2> out_times, u32 out_times_count,
+                       Service::PSC::Time::CalendarTime& calendar_time, Tz::Rule& rule);
+    Result ToPosixTimeWithMyRule(u32& out_count, std::span<s64, 2> out_times, u32 out_times_count,
+                                 Service::PSC::Time::CalendarTime& calendar_time);
+
+private:
+    void Handle_GetDeviceLocationName(HLERequestContext& ctx);
+    void Handle_SetDeviceLocationName(HLERequestContext& ctx);
+    void Handle_GetTotalLocationNameCount(HLERequestContext& ctx);
+    void Handle_LoadLocationNameList(HLERequestContext& ctx);
+    void Handle_LoadTimeZoneRule(HLERequestContext& ctx);
+    void Handle_GetTimeZoneRuleVersion(HLERequestContext& ctx);
+    void Handle_GetDeviceLocationNameAndUpdatedTime(HLERequestContext& ctx);
+    void Handle_SetDeviceLocationNameWithTimeZoneRule(HLERequestContext& ctx);
+    void Handle_ParseTimeZoneBinary(HLERequestContext& ctx);
+    void Handle_GetDeviceLocationNameOperationEventReadableHandle(HLERequestContext& ctx);
+    void Handle_ToCalendarTime(HLERequestContext& ctx);
+    void Handle_ToCalendarTimeWithMyRule(HLERequestContext& ctx);
+    void Handle_ToPosixTime(HLERequestContext& ctx);
+    void Handle_ToPosixTimeWithMyRule(HLERequestContext& ctx);
+
+    Core::System& m_system;
+    std::shared_ptr<Service::Set::ISystemSettingsServer> m_set_sys;
+
+    bool m_can_write_timezone_device_location;
+    FileTimestampWorker& m_file_timestamp_worker;
+    std::shared_ptr<Service::PSC::Time::TimeZoneService> m_wrapped_service;
+    std::mutex m_mutex;
+    bool operation_event_initialized{};
+    Service::PSC::Time::OperationEvent m_operation_event;
+};
+
+} // namespace Service::Glue::Time

src/core/hle/service/glue/time/time_zone_binary.cpp

@@ -0,0 +1,221 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/core.h"
+#include "core/file_sys/content_archive.h"
+#include "core/file_sys/nca_metadata.h"
+#include "core/file_sys/registered_cache.h"
+#include "core/file_sys/romfs.h"
+#include "core/file_sys/system_archive/system_archive.h"
+#include "core/file_sys/vfs.h"
+#include "core/hle/service/filesystem/filesystem.h"
+#include "core/hle/service/glue/time/time_zone_binary.h"
+
+namespace Service::Glue::Time {
+namespace {
+constexpr u64 TimeZoneBinaryId = 0x10000000000080E;
+
+static FileSys::VirtualDir g_time_zone_binary_romfs{};
+static Result g_time_zone_binary_mount_result{ResultUnknown};
+static std::vector<u8> g_time_zone_scratch_space(0x2800, 0);
+
+Result TimeZoneReadBinary(size_t& out_read_size, std::span<u8> out_buffer, size_t out_buffer_size,
+                          std::string_view path) {
+    R_UNLESS(g_time_zone_binary_mount_result == ResultSuccess, g_time_zone_binary_mount_result);
+
+    auto vfs_file{g_time_zone_binary_romfs->GetFileRelative(path)};
+    R_UNLESS(vfs_file, ResultUnknown);
+
+    auto file_size{vfs_file->GetSize()};
+    R_UNLESS(file_size > 0, ResultUnknown);
+
+    R_UNLESS(file_size <= out_buffer_size, Service::PSC::Time::ResultFailed);
+
+    out_read_size = vfs_file->Read(out_buffer.data(), file_size);
+    R_UNLESS(out_read_size > 0, ResultUnknown);
+
+    R_SUCCEED();
+}
+} // namespace
+
+void ResetTimeZoneBinary() {
+    g_time_zone_binary_romfs = {};
+    g_time_zone_binary_mount_result = ResultUnknown;
+    g_time_zone_scratch_space.clear();
+    g_time_zone_scratch_space.resize(0x2800, 0);
+}
+
+Result MountTimeZoneBinary(Core::System& system) {
+    ResetTimeZoneBinary();
+
+    auto& fsc{system.GetFileSystemController()};
+    std::unique_ptr<FileSys::NCA> nca{};
+
+    auto* bis_system = fsc.GetSystemNANDContents();
+
+    R_UNLESS(bis_system, ResultUnknown);
+
+    nca = bis_system->GetEntry(TimeZoneBinaryId, FileSys::ContentRecordType::Data);
+
+    if (nca) {
+        g_time_zone_binary_romfs = FileSys::ExtractRomFS(nca->GetRomFS());
+    }
+
+    if (g_time_zone_binary_romfs) {
+        // Validate that the romfs is readable, using invalid firmware keys can cause this to get
+        // set but the files to be garbage. In that case, we want to hit the next path and
+        // synthesise them instead.
+        Service::PSC::Time::LocationName name{"Etc/GMT"};
+        if (!IsTimeZoneBinaryValid(name)) {
+            ResetTimeZoneBinary();
+        }
+    }
+
+    if (!g_time_zone_binary_romfs) {
+        g_time_zone_binary_romfs = FileSys::ExtractRomFS(
+            FileSys::SystemArchive::SynthesizeSystemArchive(TimeZoneBinaryId));
+    }
+
+    R_UNLESS(g_time_zone_binary_romfs, ResultUnknown);
+
+    g_time_zone_binary_mount_result = ResultSuccess;
+    R_SUCCEED();
+}
+
+void GetTimeZoneBinaryListPath(std::string& out_path) {
+    if (g_time_zone_binary_mount_result != ResultSuccess) {
+        return;
+    }
+    // out_path = fmt::format("{}:/binaryList.txt", "TimeZoneBinary");
+    out_path = "/binaryList.txt";
+}
+
+void GetTimeZoneBinaryVersionPath(std::string& out_path) {
+    if (g_time_zone_binary_mount_result != ResultSuccess) {
+        return;
+    }
+    // out_path = fmt::format("{}:/version.txt", "TimeZoneBinary");
+    out_path = "/version.txt";
+}
+
+void GetTimeZoneZonePath(std::string& out_path, Service::PSC::Time::LocationName& name) {
+    if (g_time_zone_binary_mount_result != ResultSuccess) {
+        return;
+    }
+    // out_path = fmt::format("{}:/zoneinfo/{}", "TimeZoneBinary", name);
+    out_path = fmt::format("/zoneinfo/{}", name.name.data());
+}
+
+bool IsTimeZoneBinaryValid(Service::PSC::Time::LocationName& name) {
+    std::string path{};
+    GetTimeZoneZonePath(path, name);
+
+    auto vfs_file{g_time_zone_binary_romfs->GetFileRelative(path)};
+    if (!vfs_file) {
+        LOG_INFO(Service_Time, "Could not find timezone file {}", path);
+        return false;
+    }
+    return vfs_file->GetSize() != 0;
+}
+
+u32 GetTimeZoneCount() {
+    std::string path{};
+    GetTimeZoneBinaryListPath(path);
+
+    size_t bytes_read{};
+    if (TimeZoneReadBinary(bytes_read, g_time_zone_scratch_space, 0x2800, path) != ResultSuccess) {
+        return 0;
+    }
+    if (bytes_read == 0) {
+        return 0;
+    }
+
+    auto chars = std::span(reinterpret_cast<char*>(g_time_zone_scratch_space.data()), bytes_read);
+    u32 count{};
+    for (auto chr : chars) {
+        if (chr == '\n') {
+            count++;
+        }
+    }
+    return count;
+}
+
+Result GetTimeZoneVersion(Service::PSC::Time::RuleVersion& out_rule_version) {
+    std::string path{};
+    GetTimeZoneBinaryVersionPath(path);
+
+    auto rule_version_buffer{std::span(reinterpret_cast<u8*>(&out_rule_version),
+                                       sizeof(Service::PSC::Time::RuleVersion))};
+    size_t bytes_read{};
+    R_TRY(TimeZoneReadBinary(bytes_read, rule_version_buffer, rule_version_buffer.size_bytes(),
+                             path));
+
+    rule_version_buffer[bytes_read] = 0;
+    R_SUCCEED();
+}
+
+Result GetTimeZoneRule(std::span<const u8>& out_rule, size_t& out_rule_size,
+                       Service::PSC::Time::LocationName& name) {
+    std::string path{};
+    GetTimeZoneZonePath(path, name);
+
+    size_t bytes_read{};
+    R_TRY(TimeZoneReadBinary(bytes_read, g_time_zone_scratch_space,
+                             g_time_zone_scratch_space.size(), path));
+
+    out_rule = std::span(g_time_zone_scratch_space.data(), bytes_read);
+    out_rule_size = bytes_read;
+    R_SUCCEED();
+}
+
+Result GetTimeZoneLocationList(u32& out_count,
+                               std::vector<Service::PSC::Time::LocationName>& out_names,
+                               size_t max_names, u32 index) {
+    std::string path{};
+    GetTimeZoneBinaryListPath(path);
+
+    size_t bytes_read{};
+    R_TRY(TimeZoneReadBinary(bytes_read, g_time_zone_scratch_space,
+                             g_time_zone_scratch_space.size(), path));
+
+    out_count = 0;
+    R_SUCCEED_IF(bytes_read == 0);
+
+    Service::PSC::Time::LocationName current_name{};
+    size_t current_name_len{};
+    std::span<const u8> chars{g_time_zone_scratch_space};
+    u32 name_count{};
+
+    for (auto chr : chars) {
+        if (chr == '\r') {
+            continue;
+        }
+
+        if (chr == '\n') {
+            if (name_count >= index) {
+                out_names.push_back(current_name);
+                out_count++;
+                if (out_count >= max_names) {
+                    break;
+                }
+            }
+            name_count++;
+            current_name_len = 0;
+            current_name = {};
+            continue;
+        }
+
+        if (chr == '\0') {
+            break;
+        }
+
+        R_UNLESS(current_name_len <= current_name.name.size() - 2,
+                 Service::PSC::Time::ResultFailed);
+
+        current_name.name[current_name_len++] = chr;
+    }
+
+    R_SUCCEED();
+}
+
+} // namespace Service::Glue::Time

src/core/hle/service/glue/time/time_zone_binary.h

@@ -0,0 +1,32 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <span>
+#include <string>
+#include <string_view>
+
+#include "core/hle/service/psc/time/common.h"
+
+namespace Core {
+class System;
+}
+
+namespace Service::Glue::Time {
+
+void ResetTimeZoneBinary();
+Result MountTimeZoneBinary(Core::System& system);
+void GetTimeZoneBinaryListPath(std::string& out_path);
+void GetTimeZoneBinaryVersionPath(std::string& out_path);
+void GetTimeZoneZonePath(std::string& out_path, Service::PSC::Time::LocationName& name);
+bool IsTimeZoneBinaryValid(Service::PSC::Time::LocationName& name);
+u32 GetTimeZoneCount();
+Result GetTimeZoneVersion(Service::PSC::Time::RuleVersion& out_rule_version);
+Result GetTimeZoneRule(std::span<const u8>& out_rule, size_t& out_rule_size,
+                       Service::PSC::Time::LocationName& name);
+Result GetTimeZoneLocationList(u32& out_count,
+                               std::vector<Service::PSC::Time::LocationName>& out_names,
+                               size_t max_names, u32 index);
+
+} // namespace Service::Glue::Time

src/core/hle/service/glue/time/worker.cpp

@@ -0,0 +1,338 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "common/scope_exit.h"
+#include "core/core.h"
+#include "core/core_timing.h"
+#include "core/hle/service/glue/time/file_timestamp_worker.h"
+#include "core/hle/service/glue/time/standard_steady_clock_resource.h"
+#include "core/hle/service/glue/time/worker.h"
+#include "core/hle/service/psc/time/common.h"
+#include "core/hle/service/psc/time/service_manager.h"
+#include "core/hle/service/psc/time/static.h"
+#include "core/hle/service/psc/time/system_clock.h"
+#include "core/hle/service/set/system_settings_server.h"
+#include "core/hle/service/sm/sm.h"
+
+namespace Service::Glue::Time {
+namespace {
+
+bool g_ig_report_network_clock_context_set{};
+Service::PSC::Time::SystemClockContext g_report_network_clock_context{};
+bool g_ig_report_ephemeral_clock_context_set{};
+Service::PSC::Time::SystemClockContext g_report_ephemeral_clock_context{};
+
+template <typename T>
+T GetSettingsItemValue(std::shared_ptr<Service::Set::ISystemSettingsServer>& set_sys,
+                       const char* category, const char* name) {
+    std::vector<u8> interval_buf;
+    auto res = set_sys->GetSettingsItemValue(interval_buf, category, name);
+    ASSERT(res == ResultSuccess);
+
+    T v{};
+    std::memcpy(&v, interval_buf.data(), sizeof(T));
+    return v;
+}
+
+} // namespace
+
+TimeWorker::TimeWorker(Core::System& system, StandardSteadyClockResource& steady_clock_resource,
+                       FileTimestampWorker& file_timestamp_worker)
+    : m_system{system}, m_ctx{m_system, "Glue:58"}, m_event{m_ctx.CreateEvent("Glue:58:Event")},
+      m_steady_clock_resource{steady_clock_resource},
+      m_file_timestamp_worker{file_timestamp_worker}, m_timer_steady_clock{m_ctx.CreateEvent(
+                                                          "Glue:58:SteadyClockTimerEvent")},
+      m_timer_file_system{m_ctx.CreateEvent("Glue:58:FileTimeTimerEvent")},
+      m_alarm_worker{m_system, m_steady_clock_resource}, m_pm_state_change_handler{m_alarm_worker} {
+    g_ig_report_network_clock_context_set = false;
+    g_report_network_clock_context = {};
+    g_ig_report_ephemeral_clock_context_set = false;
+    g_report_ephemeral_clock_context = {};
+
+    m_timer_steady_clock_timing_event = Core::Timing::CreateEvent(
+        "Time::SteadyClockEvent",
+        [this](s64 time,
+               std::chrono::nanoseconds ns_late) -> std::optional<std::chrono::nanoseconds> {
+            m_timer_steady_clock->Signal();
+            return std::nullopt;
+        });
+
+    m_timer_file_system_timing_event = Core::Timing::CreateEvent(
+        "Time::SteadyClockEvent",
+        [this](s64 time,
+               std::chrono::nanoseconds ns_late) -> std::optional<std::chrono::nanoseconds> {
+            m_timer_file_system->Signal();
+            return std::nullopt;
+        });
+}
+
+TimeWorker::~TimeWorker() {
+    m_local_clock_event->Signal();
+    m_network_clock_event->Signal();
+    m_ephemeral_clock_event->Signal();
+    std::this_thread::sleep_for(std::chrono::milliseconds(16));
+
+    m_thread.request_stop();
+    m_event->Signal();
+    m_thread.join();
+
+    m_ctx.CloseEvent(m_event);
+    m_system.CoreTiming().UnscheduleEvent(m_timer_steady_clock_timing_event);
+    m_ctx.CloseEvent(m_timer_steady_clock);
+    m_system.CoreTiming().UnscheduleEvent(m_timer_file_system_timing_event);
+    m_ctx.CloseEvent(m_timer_file_system);
+}
+
+void TimeWorker::Initialize(std::shared_ptr<Service::PSC::Time::StaticService> time_sm,
+                            std::shared_ptr<Service::Set::ISystemSettingsServer> set_sys) {
+    m_set_sys = std::move(set_sys);
+    m_time_m =
+        m_system.ServiceManager().GetService<Service::PSC::Time::ServiceManager>("time:m", true);
+    m_time_sm = std::move(time_sm);
+
+    m_alarm_worker.Initialize(m_time_m);
+
+    auto steady_clock_interval_m = GetSettingsItemValue<s32>(
+        m_set_sys, "time", "standard_steady_clock_rtc_update_interval_minutes");
+
+    auto one_minute_ns{
+        std::chrono::duration_cast<std::chrono::nanoseconds>(std::chrono::minutes(1)).count()};
+    s64 steady_clock_interval_ns{steady_clock_interval_m * one_minute_ns};
+
+    m_system.CoreTiming().ScheduleLoopingEvent(std::chrono::nanoseconds(0),
+                                               std::chrono::nanoseconds(steady_clock_interval_ns),
+                                               m_timer_steady_clock_timing_event);
+
+    auto fs_notify_time_s =
+        GetSettingsItemValue<s32>(m_set_sys, "time", "notify_time_to_fs_interval_seconds");
+    auto one_second_ns{
+        std::chrono::duration_cast<std::chrono::nanoseconds>(std::chrono::seconds(1)).count()};
+    s64 fs_notify_time_ns{fs_notify_time_s * one_second_ns};
+
+    m_system.CoreTiming().ScheduleLoopingEvent(std::chrono::nanoseconds(0),
+                                               std::chrono::nanoseconds(fs_notify_time_ns),
+                                               m_timer_file_system_timing_event);
+
+    auto res = m_time_sm->GetStandardLocalSystemClock(m_local_clock);
+    ASSERT(res == ResultSuccess);
+    res = m_time_m->GetStandardLocalClockOperationEvent(&m_local_clock_event);
+    ASSERT(res == ResultSuccess);
+
+    res = m_time_sm->GetStandardNetworkSystemClock(m_network_clock);
+    ASSERT(res == ResultSuccess);
+    res = m_time_m->GetStandardNetworkClockOperationEventForServiceManager(&m_network_clock_event);
+    ASSERT(res == ResultSuccess);
+
+    res = m_time_sm->GetEphemeralNetworkSystemClock(m_ephemeral_clock);
+    ASSERT(res == ResultSuccess);
+    res =
+        m_time_m->GetEphemeralNetworkClockOperationEventForServiceManager(&m_ephemeral_clock_event);
+    ASSERT(res == ResultSuccess);
+
+    res = m_time_m->GetStandardUserSystemClockAutomaticCorrectionUpdatedEvent(
+        &m_standard_user_auto_correct_clock_event);
+    ASSERT(res == ResultSuccess);
+}
+
+void TimeWorker::StartThread() {
+    m_thread = std::jthread(std::bind_front(&TimeWorker::ThreadFunc, this));
+}
+
+void TimeWorker::ThreadFunc(std::stop_token stop_token) {
+    Common::SetCurrentThreadName("TimeWorker");
+    Common::SetCurrentThreadPriority(Common::ThreadPriority::Low);
+
+    enum class EventType {
+        Exit = 0,
+        IpmModuleService_GetEvent = 1,
+        PowerStateChange = 2,
+        SignalAlarms = 3,
+        UpdateLocalSystemClock = 4,
+        UpdateNetworkSystemClock = 5,
+        UpdateEphemeralSystemClock = 6,
+        UpdateSteadyClock = 7,
+        UpdateFileTimestamp = 8,
+        AutoCorrect = 9,
+        Max = 10,
+    };
+
+    s32 num_objs{};
+    std::array<Kernel::KSynchronizationObject*, static_cast<u32>(EventType::Max)> wait_objs{};
+    std::array<EventType, static_cast<u32>(EventType::Max)> wait_indices{};
+
+    const auto AddWaiter{
+        [&](Kernel::KSynchronizationObject* synchronization_object, EventType type) {
+            // Open a new reference to the object.
+            synchronization_object->Open();
+
+            // Insert into the list.
+            wait_indices[num_objs] = type;
+            wait_objs[num_objs++] = synchronization_object;
+        }};
+
+    while (!stop_token.stop_requested()) {
+        SCOPE_EXIT({
+            for (s32 i = 0; i < num_objs; i++) {
+                wait_objs[i]->Close();
+            }
+        });
+
+        num_objs = {};
+        wait_objs = {};
+        if (m_pm_state_change_handler.m_priority != 0) {
+            AddWaiter(&m_event->GetReadableEvent(), EventType::Exit);
+            // TODO
+            // AddWaiter(gIPmModuleService::GetEvent(), 1);
+            AddWaiter(&m_alarm_worker.GetEvent().GetReadableEvent(), EventType::PowerStateChange);
+        } else {
+            AddWaiter(&m_event->GetReadableEvent(), EventType::Exit);
+            // TODO
+            // AddWaiter(gIPmModuleService::GetEvent(), 1);
+            AddWaiter(&m_alarm_worker.GetEvent().GetReadableEvent(), EventType::PowerStateChange);
+            AddWaiter(&m_alarm_worker.GetTimerEvent().GetReadableEvent(), EventType::SignalAlarms);
+            AddWaiter(&m_local_clock_event->GetReadableEvent(), EventType::UpdateLocalSystemClock);
+            AddWaiter(&m_network_clock_event->GetReadableEvent(),
+                      EventType::UpdateNetworkSystemClock);
+            AddWaiter(&m_ephemeral_clock_event->GetReadableEvent(),
+                      EventType::UpdateEphemeralSystemClock);
+            AddWaiter(&m_timer_steady_clock->GetReadableEvent(), EventType::UpdateSteadyClock);
+            AddWaiter(&m_timer_file_system->GetReadableEvent(), EventType::UpdateFileTimestamp);
+            AddWaiter(&m_standard_user_auto_correct_clock_event->GetReadableEvent(),
+                      EventType::AutoCorrect);
+        }
+
+        s32 out_index{-1};
+        Kernel::KSynchronizationObject::Wait(m_system.Kernel(), &out_index, wait_objs.data(),
+                                             num_objs, -1);
+        ASSERT(out_index >= 0 && out_index < num_objs);
+
+        if (stop_token.stop_requested()) {
+            return;
+        }
+
+        switch (wait_indices[out_index]) {
+        case EventType::Exit:
+            return;
+
+        case EventType::IpmModuleService_GetEvent:
+            // TODO
+            // IPmModuleService::GetEvent()
+            // clear the event
+            // Handle power state change event
+            break;
+
+        case EventType::PowerStateChange:
+            m_alarm_worker.GetEvent().Clear();
+            if (m_pm_state_change_handler.m_priority <= 1) {
+                m_alarm_worker.OnPowerStateChanged();
+            }
+            break;
+
+        case EventType::SignalAlarms:
+            m_alarm_worker.GetTimerEvent().Clear();
+            m_time_m->CheckAndSignalAlarms();
+            break;
+
+        case EventType::UpdateLocalSystemClock: {
+            m_local_clock_event->Clear();
+
+            Service::PSC::Time::SystemClockContext context{};
+            auto res = m_local_clock->GetSystemClockContext(context);
+            ASSERT(res == ResultSuccess);
+
+            m_set_sys->SetUserSystemClockContext(context);
+
+            m_file_timestamp_worker.SetFilesystemPosixTime();
+        } break;
+
+        case EventType::UpdateNetworkSystemClock: {
+            m_network_clock_event->Clear();
+            Service::PSC::Time::SystemClockContext context{};
+            auto res = m_network_clock->GetSystemClockContext(context);
+            ASSERT(res == ResultSuccess);
+            m_set_sys->SetNetworkSystemClockContext(context);
+
+            s64 time{};
+            if (m_network_clock->GetCurrentTime(time) != ResultSuccess) {
+                break;
+            }
+
+            [[maybe_unused]] auto offset_before{
+                g_ig_report_network_clock_context_set ? g_report_network_clock_context.offset : 0};
+            // TODO system report "standard_netclock_operation"
+            //              "clock_time" = time
+            //              "context_offset_before" = offset_before
+            //              "context_offset_after"  = context.offset
+            g_report_network_clock_context = context;
+            if (!g_ig_report_network_clock_context_set) {
+                g_ig_report_network_clock_context_set = true;
+            }
+
+            m_file_timestamp_worker.SetFilesystemPosixTime();
+        } break;
+
+        case EventType::UpdateEphemeralSystemClock: {
+            m_ephemeral_clock_event->Clear();
+
+            Service::PSC::Time::SystemClockContext context{};
+            auto res = m_ephemeral_clock->GetSystemClockContext(context);
+            if (res != ResultSuccess) {
+                break;
+            }
+
+            s64 time{};
+            res = m_ephemeral_clock->GetCurrentTime(time);
+            if (res != ResultSuccess) {
+                break;
+            }
+
+            [[maybe_unused]] auto offset_before{g_ig_report_ephemeral_clock_context_set
+                                                    ? g_report_ephemeral_clock_context.offset
+                                                    : 0};
+            // TODO system report "ephemeral_netclock_operation"
+            //              "clock_time" = time
+            //              "context_offset_before" = offset_before
+            //              "context_offset_after"  = context.offset
+            g_report_ephemeral_clock_context = context;
+            if (!g_ig_report_ephemeral_clock_context_set) {
+                g_ig_report_ephemeral_clock_context_set = true;
+            }
+        } break;
+
+        case EventType::UpdateSteadyClock:
+            m_timer_steady_clock->Clear();
+
+            m_steady_clock_resource.UpdateTime();
+            m_time_m->SetStandardSteadyClockBaseTime(m_steady_clock_resource.GetTime());
+            break;
+
+        case EventType::UpdateFileTimestamp:
+            m_timer_file_system->Clear();
+
+            m_file_timestamp_worker.SetFilesystemPosixTime();
+            break;
+
+        case EventType::AutoCorrect: {
+            m_standard_user_auto_correct_clock_event->Clear();
+
+            bool automatic_correction{};
+            auto res = m_time_sm->IsStandardUserSystemClockAutomaticCorrectionEnabled(
+                automatic_correction);
+            ASSERT(res == ResultSuccess);
+
+            Service::PSC::Time::SteadyClockTimePoint time_point{};
+            res = m_time_sm->GetStandardUserSystemClockAutomaticCorrectionUpdatedTime(time_point);
+            ASSERT(res == ResultSuccess);
+
+            m_set_sys->SetUserSystemClockAutomaticCorrectionEnabled(automatic_correction);
+            m_set_sys->SetUserSystemClockAutomaticCorrectionUpdatedTime(time_point);
+        } break;
+
+        default:
+            UNREACHABLE();
+            break;
+        }
+    }
+}
+
+} // namespace Service::Glue::Time

src/core/hle/service/glue/time/worker.h

@@ -0,0 +1,64 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "common/common_types.h"
+#include "core/hle/kernel/k_event.h"
+#include "core/hle/service/glue/time/alarm_worker.h"
+#include "core/hle/service/glue/time/pm_state_change_handler.h"
+#include "core/hle/service/kernel_helpers.h"
+
+namespace Service::Set {
+class ISystemSettingsServer;
+}
+
+namespace Service::PSC::Time {
+class StaticService;
+class SystemClock;
+} // namespace Service::PSC::Time
+
+namespace Service::Glue::Time {
+class FileTimestampWorker;
+class StandardSteadyClockResource;
+
+class TimeWorker {
+public:
+    explicit TimeWorker(Core::System& system, StandardSteadyClockResource& steady_clock_resource,
+                        FileTimestampWorker& file_timestamp_worker);
+    ~TimeWorker();
+
+    void Initialize(std::shared_ptr<Service::PSC::Time::StaticService> time_sm,
+                    std::shared_ptr<Service::Set::ISystemSettingsServer> set_sys);
+
+    void StartThread();
+
+private:
+    void ThreadFunc(std::stop_token stop_token);
+
+    Core::System& m_system;
+    KernelHelpers::ServiceContext m_ctx;
+    std::shared_ptr<Service::Set::ISystemSettingsServer> m_set_sys;
+
+    std::jthread m_thread;
+    Kernel::KEvent* m_event{};
+    std::shared_ptr<Service::PSC::Time::ServiceManager> m_time_m;
+    std::shared_ptr<Service::PSC::Time::StaticService> m_time_sm;
+    std::shared_ptr<Service::PSC::Time::SystemClock> m_network_clock;
+    std::shared_ptr<Service::PSC::Time::SystemClock> m_local_clock;
+    std::shared_ptr<Service::PSC::Time::SystemClock> m_ephemeral_clock;
+    StandardSteadyClockResource& m_steady_clock_resource;
+    FileTimestampWorker& m_file_timestamp_worker;
+    Kernel::KEvent* m_local_clock_event{};
+    Kernel::KEvent* m_network_clock_event{};
+    Kernel::KEvent* m_ephemeral_clock_event{};
+    Kernel::KEvent* m_standard_user_auto_correct_clock_event{};
+    Kernel::KEvent* m_timer_steady_clock{};
+    std::shared_ptr<Core::Timing::EventType> m_timer_steady_clock_timing_event;
+    Kernel::KEvent* m_timer_file_system{};
+    std::shared_ptr<Core::Timing::EventType> m_timer_file_system_timing_event;
+    AlarmWorker m_alarm_worker;
+    PmStateChangeHandler m_pm_state_change_handler;
+};
+
+} // namespace Service::Glue::Time

src/core/hle/service/kernel_helpers.cpp

@@ -65,6 +65,9 @@ Kernel::KEvent* ServiceContext::CreateEvent(std::string&& name) {
 }
 
 void ServiceContext::CloseEvent(Kernel::KEvent* event) {
+    if (!event) {
+        return;
+    }
     event->GetReadableEvent().Close();
     event->Close();
 }

src/core/hle/service/nfc/common/device.cpp

@@ -1,6 +1,8 @@
 // SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
+#include "core/hle/service/glue/time/static.h"
+#include "core/hle/service/psc/time/steady_clock.h"
 #ifdef _MSC_VER
 #pragma warning(push)
 #pragma warning(disable : 4701) // Potentially uninitialized local variable 'result' used
@@ -29,7 +31,8 @@
 #include "core/hle/service/nfc/common/device.h"
 #include "core/hle/service/nfc/mifare_result.h"
 #include "core/hle/service/nfc/nfc_result.h"
-#include "core/hle/service/time/time_manager.h"
+#include "core/hle/service/service.h"
+#include "core/hle/service/sm/sm.h"
 #include "hid_core/frontend/emulated_controller.h"
 #include "hid_core/hid_core.h"
 #include "hid_core/hid_types.h"
@@ -393,8 +396,7 @@ Result NfcDevice::WriteMifare(std::span<const MifareWriteBlockParameter> paramet
     return result;
 }
 
-Result NfcDevice::SendCommandByPassThrough(const Time::Clock::TimeSpanType& timeout,
-                                           std::span<const u8> command_data,
+Result NfcDevice::SendCommandByPassThrough(const s64& timeout, std::span<const u8> command_data,
                                            std::span<u8> out_data) {
     // Not implemented
     return ResultSuccess;
@@ -1399,27 +1401,41 @@ void NfcDevice::SetAmiiboName(NFP::AmiiboSettings& settings,
 }
 
 NFP::AmiiboDate NfcDevice::GetAmiiboDate(s64 posix_time) const {
-    const auto& time_zone_manager =
-        system.GetTimeManager().GetTimeZoneContentManager().GetTimeZoneManager();
-    Time::TimeZone::CalendarInfo calendar_info{};
+    auto static_service =
+        system.ServiceManager().GetService<Service::Glue::Time::StaticService>("time:u", true);
+
+    std::shared_ptr<Service::Glue::Time::TimeZoneService> timezone_service{};
+    static_service->GetTimeZoneService(timezone_service);
+
+    Service::PSC::Time::CalendarTime calendar_time{};
+    Service::PSC::Time::CalendarAdditionalInfo additional_info{};
+
     NFP::AmiiboDate amiibo_date{};
 
     amiibo_date.SetYear(2000);
     amiibo_date.SetMonth(1);
     amiibo_date.SetDay(1);
 
-    if (time_zone_manager.ToCalendarTime({}, posix_time, calendar_info) == ResultSuccess) {
-        amiibo_date.SetYear(calendar_info.time.year);
-        amiibo_date.SetMonth(calendar_info.time.month);
-        amiibo_date.SetDay(calendar_info.time.day);
+    if (timezone_service->ToCalendarTimeWithMyRule(calendar_time, additional_info, posix_time) ==
+        ResultSuccess) {
+        amiibo_date.SetYear(calendar_time.year);
+        amiibo_date.SetMonth(calendar_time.month);
+        amiibo_date.SetDay(calendar_time.day);
     }
 
     return amiibo_date;
 }
 
-u64 NfcDevice::GetCurrentPosixTime() const {
-    auto& standard_steady_clock{system.GetTimeManager().GetStandardSteadyClockCore()};
-    return standard_steady_clock.GetCurrentTimePoint(system).time_point;
+s64 NfcDevice::GetCurrentPosixTime() const {
+    auto static_service =
+        system.ServiceManager().GetService<Service::Glue::Time::StaticService>("time:u", true);
+
+    std::shared_ptr<Service::PSC::Time::SteadyClock> steady_clock{};
+    static_service->GetStandardSteadyClock(steady_clock);
+
+    Service::PSC::Time::SteadyClockTimePoint time_point{};
+    R_ASSERT(steady_clock->GetCurrentTimePoint(time_point));
+    return time_point.time_point;
 }
 
 u64 NfcDevice::RemoveVersionByte(u64 application_id) const {

src/core/hle/service/nfc/common/device.h

@@ -11,7 +11,6 @@
 #include "core/hle/service/nfc/nfc_types.h"
 #include "core/hle/service/nfp/nfp_types.h"
 #include "core/hle/service/service.h"
-#include "core/hle/service/time/clock_types.h"
 
 namespace Kernel {
 class KEvent;
@@ -49,8 +48,8 @@ public:
 
     Result WriteMifare(std::span<const MifareWriteBlockParameter> parameters);
 
-    Result SendCommandByPassThrough(const Time::Clock::TimeSpanType& timeout,
-                                    std::span<const u8> command_data, std::span<u8> out_data);
+    Result SendCommandByPassThrough(const s64& timeout, std::span<const u8> command_data,
+                                    std::span<u8> out_data);
 
     Result Mount(NFP::ModelType model_type, NFP::MountTarget mount_target);
     Result Unmount();
@@ -108,7 +107,7 @@ private:
     NFP::AmiiboName GetAmiiboName(const NFP::AmiiboSettings& settings) const;
     void SetAmiiboName(NFP::AmiiboSettings& settings, const NFP::AmiiboName& amiibo_name) const;
     NFP::AmiiboDate GetAmiiboDate(s64 posix_time) const;
-    u64 GetCurrentPosixTime() const;
+    s64 GetCurrentPosixTime() const;
     u64 RemoveVersionByte(u64 application_id) const;
     void UpdateSettingsCrc();
     void UpdateRegisterInfoCrc();

src/core/hle/service/nfc/common/device_manager.cpp

@@ -6,12 +6,14 @@
 #include "common/logging/log.h"
 #include "core/core.h"
 #include "core/hle/kernel/k_event.h"
+#include "core/hle/service/glue/time/static.h"
 #include "core/hle/service/ipc_helpers.h"
 #include "core/hle/service/nfc/common/device.h"
 #include "core/hle/service/nfc/common/device_manager.h"
 #include "core/hle/service/nfc/nfc_result.h"
-#include "core/hle/service/time/clock_types.h"
-#include "core/hle/service/time/time_manager.h"
+#include "core/hle/service/psc/time/steady_clock.h"
+#include "core/hle/service/service.h"
+#include "core/hle/service/sm/sm.h"
 #include "hid_core/hid_types.h"
 #include "hid_core/hid_util.h"
 
@@ -82,11 +84,19 @@ Result DeviceManager::ListDevices(std::vector<u64>& nfp_devices, std::size_t max
             continue;
         }
         if (skip_fatal_errors) {
-            constexpr u64 MinimumRecoveryTime = 60;
-            auto& standard_steady_clock{system.GetTimeManager().GetStandardSteadyClockCore()};
-            const u64 elapsed_time = standard_steady_clock.GetCurrentTimePoint(system).time_point -
-                                     time_since_last_error;
+            constexpr s64 MinimumRecoveryTime = 60;
 
+            auto static_service =
+                system.ServiceManager().GetService<Service::Glue::Time::StaticService>("time:u",
+                                                                                       true);
+
+            std::shared_ptr<Service::PSC::Time::SteadyClock> steady_clock{};
+            static_service->GetStandardSteadyClock(steady_clock);
+
+            Service::PSC::Time::SteadyClockTimePoint time_point{};
+            R_ASSERT(steady_clock->GetCurrentTimePoint(time_point));
+
+            const s64 elapsed_time = time_point.time_point - time_since_last_error;
             if (time_since_last_error != 0 && elapsed_time < MinimumRecoveryTime) {
                 continue;
             }
@@ -250,8 +260,7 @@ Result DeviceManager::WriteMifare(u64 device_handle,
     return result;
 }
 
-Result DeviceManager::SendCommandByPassThrough(u64 device_handle,
-                                               const Time::Clock::TimeSpanType& timeout,
+Result DeviceManager::SendCommandByPassThrough(u64 device_handle, const s64& timeout,
                                                std::span<const u8> command_data,
                                                std::span<u8> out_data) {
     std::scoped_lock lock{mutex};
@@ -741,8 +750,16 @@ Result DeviceManager::VerifyDeviceResult(std::shared_ptr<NfcDevice> device,
 
     if (operation_result == ResultUnknown112 || operation_result == ResultUnknown114 ||
         operation_result == ResultUnknown115) {
-        auto& standard_steady_clock{system.GetTimeManager().GetStandardSteadyClockCore()};
-        time_since_last_error = standard_steady_clock.GetCurrentTimePoint(system).time_point;
+        auto static_service =
+            system.ServiceManager().GetService<Service::Glue::Time::StaticService>("time:u", true);
+
+        std::shared_ptr<Service::PSC::Time::SteadyClock> steady_clock{};
+        static_service->GetStandardSteadyClock(steady_clock);
+
+        Service::PSC::Time::SteadyClockTimePoint time_point{};
+        R_ASSERT(steady_clock->GetCurrentTimePoint(time_point));
+
+        time_since_last_error = time_point.time_point;
     }
 
     return operation_result;

src/core/hle/service/nfc/common/device_manager.h

@@ -13,7 +13,6 @@
 #include "core/hle/service/nfc/nfc_types.h"
 #include "core/hle/service/nfp/nfp_types.h"
 #include "core/hle/service/service.h"
-#include "core/hle/service/time/clock_types.h"
 #include "hid_core/hid_types.h"
 
 namespace Service::NFC {
@@ -42,7 +41,7 @@ public:
                       std::span<MifareReadBlockData> read_data);
     Result WriteMifare(u64 device_handle,
                        std::span<const MifareWriteBlockParameter> write_parameters);
-    Result SendCommandByPassThrough(u64 device_handle, const Time::Clock::TimeSpanType& timeout,
+    Result SendCommandByPassThrough(u64 device_handle, const s64& timeout,
                                     std::span<const u8> command_data, std::span<u8> out_data);
 
     // Nfp device manager
@@ -92,7 +91,7 @@ private:
     const std::optional<std::shared_ptr<NfcDevice>> GetNfcDevice(u64 handle) const;
 
     bool is_initialized = false;
-    u64 time_since_last_error = 0;
+    s64 time_since_last_error = 0;
     mutable std::mutex mutex;
     std::array<std::shared_ptr<NfcDevice>, 10> devices{};
 

src/core/hle/service/nfc/nfc_interface.cpp

@@ -13,7 +13,6 @@
 #include "core/hle/service/nfc/nfc_result.h"
 #include "core/hle/service/nfc/nfc_types.h"
 #include "core/hle/service/nfp/nfp_result.h"
-#include "core/hle/service/time/clock_types.h"
 #include "hid_core/hid_types.h"
 
 namespace Service::NFC {
@@ -261,10 +260,10 @@ void NfcInterface::WriteMifare(HLERequestContext& ctx) {
 void NfcInterface::SendCommandByPassThrough(HLERequestContext& ctx) {
     IPC::RequestParser rp{ctx};
     const auto device_handle{rp.Pop<u64>()};
-    const auto timeout{rp.PopRaw<Time::Clock::TimeSpanType>()};
+    const auto timeout{rp.PopRaw<s64>()};
     const auto command_data{ctx.ReadBuffer()};
     LOG_INFO(Service_NFC, "(STUBBED) called, device_handle={}, timeout={}, data_size={}",
-             device_handle, timeout.ToSeconds(), command_data.size());
+             device_handle, timeout, command_data.size());
 
     std::vector<u8> out_data(1);
     auto result =

src/core/hle/service/ns/language.cpp

@@ -415,4 +415,4 @@ std::optional<Set::LanguageCode> ConvertToLanguageCode(const ApplicationLanguage
         return std::nullopt;
     }
 }
-} // namespace Service::NS
+} // namespace Service::NS

src/core/hle/service/ns/language.h

@@ -5,10 +5,7 @@
 
 #include <optional>
 #include "common/common_types.h"
-
-namespace Service::Set {
-enum class LanguageCode : u64;
-}
+#include "core/hle/service/set/system_settings_server.h"
 
 namespace Service::NS {
 /// This is nn::ns::detail::ApplicationLanguage

src/core/hle/service/psc/psc.cpp

@@ -4,9 +4,13 @@
 #include <memory>
 
 #include "common/logging/log.h"
+#include "core/core.h"
 #include "core/hle/service/ipc_helpers.h"
 #include "core/hle/service/psc/psc.h"
-#include "core/hle/service/server_manager.h"
+#include "core/hle/service/psc/time/manager.h"
+#include "core/hle/service/psc/time/power_state_service.h"
+#include "core/hle/service/psc/time/service_manager.h"
+#include "core/hle/service/psc/time/static.h"
 #include "core/hle/service/service.h"
 
 namespace Service::PSC {
@@ -76,6 +80,17 @@ void LoopProcess(Core::System& system) {
 
     server_manager->RegisterNamedService("psc:c", std::make_shared<IPmControl>(system));
     server_manager->RegisterNamedService("psc:m", std::make_shared<IPmService>(system));
+
+    auto time = std::make_shared<Time::TimeManager>(system);
+
+    server_manager->RegisterNamedService(
+        "time:m", std::make_shared<Time::ServiceManager>(system, time, server_manager.get()));
+    server_manager->RegisterNamedService(
+        "time:su", std::make_shared<Time::StaticService>(
+                       system, Time::StaticServiceSetupInfo{0, 0, 0, 0, 0, 1}, time, "time:su"));
+    server_manager->RegisterNamedService("time:al",
+                                         std::make_shared<Time::IAlarmService>(system, time));
+
     ServerManager::RunServer(std::move(server_manager));
 }
 

src/core/hle/service/psc/time/alarms.cpp

@@ -0,0 +1,209 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/core.h"
+#include "core/hle/service/psc/time/alarms.h"
+#include "core/hle/service/psc/time/manager.h"
+
+namespace Service::PSC::Time {
+Alarm::Alarm(Core::System& system, KernelHelpers::ServiceContext& ctx, AlarmType type)
+    : m_ctx{ctx}, m_event{ctx.CreateEvent("Psc:Alarm:Event")} {
+    m_event->Clear();
+
+    switch (type) {
+    case WakeupAlarm:
+        m_priority = 1;
+        break;
+    case BackgroundTaskAlarm:
+        m_priority = 0;
+        break;
+    default:
+        UNREACHABLE();
+        return;
+    }
+}
+
+Alarm::~Alarm() {
+    m_ctx.CloseEvent(m_event);
+}
+
+Alarms::Alarms(Core::System& system, StandardSteadyClockCore& steady_clock,
+               PowerStateRequestManager& power_state_request_manager)
+    : m_system{system}, m_ctx{system, "Psc:Alarms"}, m_steady_clock{steady_clock},
+      m_power_state_request_manager{power_state_request_manager}, m_event{m_ctx.CreateEvent(
+                                                                      "Psc:Alarms:Event")} {}
+
+Alarms::~Alarms() {
+    m_ctx.CloseEvent(m_event);
+}
+
+Result Alarms::Enable(Alarm& alarm, s64 time) {
+    R_UNLESS(m_steady_clock.IsInitialized(), ResultClockUninitialized);
+
+    std::scoped_lock l{m_mutex};
+    R_UNLESS(alarm.IsLinked(), ResultAlarmNotRegistered);
+
+    auto time_ns{time + m_steady_clock.GetRawTime()};
+    auto one_second_ns{
+        std::chrono::duration_cast<std::chrono::nanoseconds>(std::chrono::seconds(1)).count()};
+    time_ns = Common::AlignUp(time_ns, one_second_ns);
+    alarm.SetAlertTime(time_ns);
+
+    Insert(alarm);
+    R_RETURN(UpdateClosestAndSignal());
+}
+
+void Alarms::Disable(Alarm& alarm) {
+    std::scoped_lock l{m_mutex};
+    if (!alarm.IsLinked()) {
+        return;
+    }
+
+    Erase(alarm);
+    UpdateClosestAndSignal();
+}
+
+void Alarms::CheckAndSignal() {
+    std::scoped_lock l{m_mutex};
+    if (m_alarms.empty()) {
+        return;
+    }
+
+    bool alarm_signalled{false};
+    for (auto& alarm : m_alarms) {
+        if (m_steady_clock.GetRawTime() >= alarm.GetAlertTime()) {
+            alarm.Signal();
+            alarm.Lock();
+            Erase(alarm);
+
+            m_power_state_request_manager.UpdatePendingPowerStateRequestPriority(
+                alarm.GetPriority());
+            alarm_signalled = true;
+        }
+    }
+
+    if (!alarm_signalled) {
+        return;
+    }
+
+    m_power_state_request_manager.SignalPowerStateRequestAvailability();
+    UpdateClosestAndSignal();
+}
+
+bool Alarms::GetClosestAlarm(Alarm** out_alarm) {
+    std::scoped_lock l{m_mutex};
+    auto alarm = m_alarms.empty() ? nullptr : std::addressof(m_alarms.front());
+    *out_alarm = alarm;
+    return alarm != nullptr;
+}
+
+void Alarms::Insert(Alarm& alarm) {
+    // Alarms are sorted by alert time, then priority
+    auto it{m_alarms.begin()};
+    while (it != m_alarms.end()) {
+        if (alarm.GetAlertTime() < it->GetAlertTime() ||
+            (alarm.GetAlertTime() == it->GetAlertTime() &&
+             alarm.GetPriority() < it->GetPriority())) {
+            m_alarms.insert(it, alarm);
+            return;
+        }
+        it++;
+    }
+
+    m_alarms.push_back(alarm);
+}
+
+void Alarms::Erase(Alarm& alarm) {
+    m_alarms.erase(m_alarms.iterator_to(alarm));
+}
+
+Result Alarms::UpdateClosestAndSignal() {
+    m_closest_alarm = m_alarms.empty() ? nullptr : std::addressof(m_alarms.front());
+    R_SUCCEED_IF(m_closest_alarm == nullptr);
+
+    m_event->Signal();
+
+    R_SUCCEED();
+}
+
+IAlarmService::IAlarmService(Core::System& system_, std::shared_ptr<TimeManager> manager)
+    : ServiceFramework{system_, "time:al"}, m_system{system}, m_alarms{manager->m_alarms} {
+    // clang-format off
+    static const FunctionInfo functions[] = {
+        {0, &IAlarmService::CreateWakeupAlarm, "CreateWakeupAlarm"},
+        {1, &IAlarmService::CreateBackgroundTaskAlarm, "CreateBackgroundTaskAlarm"},
+    };
+    // clang-format on
+    RegisterHandlers(functions);
+}
+
+void IAlarmService::CreateWakeupAlarm(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    rb.Push(ResultSuccess);
+    rb.PushIpcInterface<ISteadyClockAlarm>(system, m_alarms, AlarmType::WakeupAlarm);
+}
+
+void IAlarmService::CreateBackgroundTaskAlarm(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    rb.Push(ResultSuccess);
+    rb.PushIpcInterface<ISteadyClockAlarm>(system, m_alarms, AlarmType::BackgroundTaskAlarm);
+}
+
+ISteadyClockAlarm::ISteadyClockAlarm(Core::System& system_, Alarms& alarms, AlarmType type)
+    : ServiceFramework{system_, "ISteadyClockAlarm"}, m_ctx{system, "Psc:ISteadyClockAlarm"},
+      m_alarms{alarms}, m_alarm{system, m_ctx, type} {
+    // clang-format off
+    static const FunctionInfo functions[] = {
+        {0,  &ISteadyClockAlarm::GetAlarmEvent, "GetAlarmEvent"},
+        {1,  &ISteadyClockAlarm::Enable, "Enable"},
+        {2,  &ISteadyClockAlarm::Disable, "Disable"},
+        {3,  &ISteadyClockAlarm::IsEnabled, "IsEnabled"},
+        {10, nullptr, "CreateWakeLock"},
+        {11, nullptr, "DestroyWakeLock"},
+    };
+    // clang-format on
+    RegisterHandlers(functions);
+}
+
+void ISteadyClockAlarm::GetAlarmEvent(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::ResponseBuilder rb{ctx, 2, 1};
+    rb.Push(ResultSuccess);
+    rb.PushCopyObjects(m_alarm.GetEventHandle());
+}
+
+void ISteadyClockAlarm::Enable(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::RequestParser rp{ctx};
+    auto time{rp.Pop<s64>()};
+
+    auto res = m_alarms.Enable(m_alarm, time);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(res);
+}
+
+void ISteadyClockAlarm::Disable(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    m_alarms.Disable(m_alarm);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ResultSuccess);
+}
+
+void ISteadyClockAlarm::IsEnabled(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::ResponseBuilder rb{ctx, 3};
+    rb.Push(ResultSuccess);
+    rb.Push<bool>(m_alarm.IsLinked());
+}
+
+} // namespace Service::PSC::Time

src/core/hle/service/psc/time/alarms.h

@@ -0,0 +1,139 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <mutex>
+
+#include "core/hle/kernel/k_event.h"
+#include "core/hle/service/ipc_helpers.h"
+#include "core/hle/service/kernel_helpers.h"
+#include "core/hle/service/psc/time/clocks/standard_steady_clock_core.h"
+#include "core/hle/service/psc/time/common.h"
+#include "core/hle/service/psc/time/power_state_request_manager.h"
+#include "core/hle/service/server_manager.h"
+#include "core/hle/service/service.h"
+
+namespace Core {
+class System;
+}
+
+namespace Service::PSC::Time {
+class TimeManager;
+
+enum AlarmType : u32 {
+    WakeupAlarm = 0,
+    BackgroundTaskAlarm = 1,
+};
+
+struct Alarm : public Common::IntrusiveListBaseNode<Alarm> {
+    using AlarmList = Common::IntrusiveListBaseTraits<Alarm>::ListType;
+
+    Alarm(Core::System& system, KernelHelpers::ServiceContext& ctx, AlarmType type);
+    ~Alarm();
+
+    Kernel::KReadableEvent& GetEventHandle() {
+        return m_event->GetReadableEvent();
+    }
+
+    s64 GetAlertTime() const {
+        return m_alert_time;
+    }
+
+    void SetAlertTime(s64 time) {
+        m_alert_time = time;
+    }
+
+    u32 GetPriority() const {
+        return m_priority;
+    }
+
+    void Signal() {
+        m_event->Signal();
+    }
+
+    Result Lock() {
+        // TODO
+        // if (m_lock_service) {
+        //     return m_lock_service->Lock();
+        // }
+        R_SUCCEED();
+    }
+
+    KernelHelpers::ServiceContext& m_ctx;
+
+    u32 m_priority;
+    Kernel::KEvent* m_event{};
+    s64 m_alert_time{};
+    // TODO
+    // nn::psc::sf::IPmStateLock* m_lock_service{};
+};
+
+class Alarms {
+public:
+    explicit Alarms(Core::System& system, StandardSteadyClockCore& steady_clock,
+                    PowerStateRequestManager& power_state_request_manager);
+    ~Alarms();
+
+    Kernel::KEvent& GetEvent() {
+        return *m_event;
+    }
+
+    s64 GetRawTime() {
+        return m_steady_clock.GetRawTime();
+    }
+
+    Result Enable(Alarm& alarm, s64 time);
+    void Disable(Alarm& alarm);
+    void CheckAndSignal();
+    bool GetClosestAlarm(Alarm** out_alarm);
+
+private:
+    void Insert(Alarm& alarm);
+    void Erase(Alarm& alarm);
+    Result UpdateClosestAndSignal();
+
+    Core::System& m_system;
+    KernelHelpers::ServiceContext m_ctx;
+
+    StandardSteadyClockCore& m_steady_clock;
+    PowerStateRequestManager& m_power_state_request_manager;
+    Alarm::AlarmList m_alarms;
+    Kernel::KEvent* m_event{};
+    Alarm* m_closest_alarm{};
+    std::mutex m_mutex;
+};
+
+class IAlarmService final : public ServiceFramework<IAlarmService> {
+public:
+    explicit IAlarmService(Core::System& system, std::shared_ptr<TimeManager> manager);
+
+    ~IAlarmService() override = default;
+
+private:
+    void CreateWakeupAlarm(HLERequestContext& ctx);
+    void CreateBackgroundTaskAlarm(HLERequestContext& ctx);
+
+    Core::System& m_system;
+    Alarms& m_alarms;
+};
+
+class ISteadyClockAlarm final : public ServiceFramework<ISteadyClockAlarm> {
+public:
+    explicit ISteadyClockAlarm(Core::System& system, Alarms& alarms, AlarmType type);
+
+    ~ISteadyClockAlarm() override = default;
+
+private:
+    void GetAlarmEvent(HLERequestContext& ctx);
+    void Enable(HLERequestContext& ctx);
+    void Disable(HLERequestContext& ctx);
+    void IsEnabled(HLERequestContext& ctx);
+
+    KernelHelpers::ServiceContext m_ctx;
+
+    Alarms& m_alarms;
+    Alarm m_alarm;
+};
+
+} // namespace Service::PSC::Time

src/core/hle/service/psc/time/clocks/context_writers.cpp

@@ -0,0 +1,83 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/core.h"
+#include "core/hle/service/psc/time/clocks/context_writers.h"
+
+namespace Service::PSC::Time {
+
+void ContextWriter::SignalAllNodes() {
+    std::scoped_lock l{m_mutex};
+    for (auto& operation : m_operation_events) {
+        operation.m_event->Signal();
+    }
+}
+
+void ContextWriter::Link(OperationEvent& operation_event) {
+    std::scoped_lock l{m_mutex};
+    m_operation_events.push_back(operation_event);
+}
+
+LocalSystemClockContextWriter::LocalSystemClockContextWriter(Core::System& system,
+                                                             SharedMemory& shared_memory)
+    : m_system{system}, m_shared_memory{shared_memory} {}
+
+Result LocalSystemClockContextWriter::Write(SystemClockContext& context) {
+    if (m_in_use) {
+        R_SUCCEED_IF(context == m_context);
+        m_context = context;
+    } else {
+        m_context = context;
+        m_in_use = true;
+    }
+
+    m_shared_memory.SetLocalSystemContext(context);
+
+    SignalAllNodes();
+
+    R_SUCCEED();
+}
+
+NetworkSystemClockContextWriter::NetworkSystemClockContextWriter(Core::System& system,
+                                                                 SharedMemory& shared_memory,
+                                                                 SystemClockCore& system_clock)
+    : m_system{system}, m_shared_memory{shared_memory}, m_system_clock{system_clock} {}
+
+Result NetworkSystemClockContextWriter::Write(SystemClockContext& context) {
+    s64 time{};
+    [[maybe_unused]] auto res = m_system_clock.GetCurrentTime(&time);
+
+    if (m_in_use) {
+        R_SUCCEED_IF(context == m_context);
+        m_context = context;
+    } else {
+        m_context = context;
+        m_in_use = true;
+    }
+
+    m_shared_memory.SetNetworkSystemContext(context);
+
+    SignalAllNodes();
+
+    R_SUCCEED();
+}
+
+EphemeralNetworkSystemClockContextWriter::EphemeralNetworkSystemClockContextWriter(
+    Core::System& system)
+    : m_system{system} {}
+
+Result EphemeralNetworkSystemClockContextWriter::Write(SystemClockContext& context) {
+    if (m_in_use) {
+        R_SUCCEED_IF(context == m_context);
+        m_context = context;
+    } else {
+        m_context = context;
+        m_in_use = true;
+    }
+
+    SignalAllNodes();
+
+    R_SUCCEED();
+}
+
+} // namespace Service::PSC::Time

src/core/hle/service/psc/time/clocks/context_writers.h

@@ -0,0 +1,79 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <list>
+
+#include "common/common_types.h"
+#include "core/hle/kernel/k_event.h"
+#include "core/hle/service/psc/time/clocks/system_clock_core.h"
+#include "core/hle/service/psc/time/common.h"
+#include "core/hle/service/psc/time/shared_memory.h"
+
+namespace Core {
+class System;
+}
+
+namespace Service::PSC::Time {
+
+class ContextWriter {
+private:
+    using OperationEventList = Common::IntrusiveListBaseTraits<OperationEvent>::ListType;
+
+public:
+    virtual ~ContextWriter() = default;
+
+    virtual Result Write(SystemClockContext& context) = 0;
+    void SignalAllNodes();
+    void Link(OperationEvent& operation_event);
+
+private:
+    OperationEventList m_operation_events;
+    std::mutex m_mutex;
+};
+
+class LocalSystemClockContextWriter : public ContextWriter {
+public:
+    explicit LocalSystemClockContextWriter(Core::System& system, SharedMemory& shared_memory);
+
+    Result Write(SystemClockContext& context) override;
+
+private:
+    Core::System& m_system;
+
+    SharedMemory& m_shared_memory;
+    bool m_in_use{};
+    SystemClockContext m_context{};
+};
+
+class NetworkSystemClockContextWriter : public ContextWriter {
+public:
+    explicit NetworkSystemClockContextWriter(Core::System& system, SharedMemory& shared_memory,
+                                             SystemClockCore& system_clock);
+
+    Result Write(SystemClockContext& context) override;
+
+private:
+    Core::System& m_system;
+
+    SharedMemory& m_shared_memory;
+    bool m_in_use{};
+    SystemClockContext m_context{};
+    SystemClockCore& m_system_clock;
+};
+
+class EphemeralNetworkSystemClockContextWriter : public ContextWriter {
+public:
+    EphemeralNetworkSystemClockContextWriter(Core::System& system);
+
+    Result Write(SystemClockContext& context) override;
+
+private:
+    Core::System& m_system;
+
+    bool m_in_use{};
+    SystemClockContext m_context{};
+};
+
+} // namespace Service::PSC::Time

src/core/hle/service/psc/time/clocks/ephemeral_network_system_clock_core.h

@@ -0,0 +1,21 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "core/hle/result.h"
+#include "core/hle/service/psc/time/clocks/context_writers.h"
+#include "core/hle/service/psc/time/clocks/steady_clock_core.h"
+#include "core/hle/service/psc/time/clocks/system_clock_core.h"
+#include "core/hle/service/psc/time/common.h"
+
+namespace Service::PSC::Time {
+
+class EphemeralNetworkSystemClockCore : public SystemClockCore {
+public:
+    explicit EphemeralNetworkSystemClockCore(SteadyClockCore& steady_clock)
+        : SystemClockCore{steady_clock} {}
+    ~EphemeralNetworkSystemClockCore() override = default;
+};
+
+} // namespace Service::PSC::Time

src/core/hle/service/psc/time/clocks/standard_local_system_clock_core.cpp

@@ -0,0 +1,20 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/psc/time/clocks/standard_local_system_clock_core.h"
+
+namespace Service::PSC::Time {
+
+void StandardLocalSystemClockCore::Initialize(SystemClockContext& context, s64 time) {
+    SteadyClockTimePoint time_point{};
+    if (GetCurrentTimePoint(time_point) == ResultSuccess &&
+        context.steady_time_point.IdMatches(time_point)) {
+        SetContextAndWrite(context);
+    } else if (SetCurrentTime(time) != ResultSuccess) {
+        LOG_ERROR(Service_Time, "Failed to SetCurrentTime");
+    }
+
+    SetInitialized();
+}
+
+} // namespace Service::PSC::Time

src/core/hle/service/psc/time/clocks/standard_local_system_clock_core.h

@@ -0,0 +1,23 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "core/hle/result.h"
+#include "core/hle/service/psc/time/clocks/context_writers.h"
+#include "core/hle/service/psc/time/clocks/steady_clock_core.h"
+#include "core/hle/service/psc/time/clocks/system_clock_core.h"
+#include "core/hle/service/psc/time/common.h"
+
+namespace Service::PSC::Time {
+
+class StandardLocalSystemClockCore : public SystemClockCore {
+public:
+    explicit StandardLocalSystemClockCore(SteadyClockCore& steady_clock)
+        : SystemClockCore{steady_clock} {}
+    ~StandardLocalSystemClockCore() override = default;
+
+    void Initialize(SystemClockContext& context, s64 time);
+};
+
+} // namespace Service::PSC::Time

src/core/hle/service/psc/time/clocks/standard_network_system_clock_core.cpp

@@ -0,0 +1,42 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/psc/time/clocks/standard_network_system_clock_core.h"
+
+namespace Service::PSC::Time {
+
+void StandardNetworkSystemClockCore::Initialize(SystemClockContext& context, s64 accuracy) {
+    if (SetContextAndWrite(context) != ResultSuccess) {
+        LOG_ERROR(Service_Time, "Failed to SetContext");
+    }
+    m_sufficient_accuracy = accuracy;
+    SetInitialized();
+}
+
+bool StandardNetworkSystemClockCore::IsAccuracySufficient() {
+    if (!IsInitialized()) {
+        return false;
+    }
+
+    SystemClockContext context{};
+    SteadyClockTimePoint current_time_point{};
+    if (GetCurrentTimePoint(current_time_point) != ResultSuccess ||
+        GetContext(context) != ResultSuccess) {
+        return false;
+    }
+
+    s64 seconds{};
+    if (GetSpanBetweenTimePoints(&seconds, context.steady_time_point, current_time_point) !=
+        ResultSuccess) {
+        return false;
+    }
+
+    if (std::chrono::duration_cast<std::chrono::nanoseconds>(std::chrono::seconds(seconds))
+            .count() < m_sufficient_accuracy) {
+        return true;
+    }
+
+    return false;
+}
+
+} // namespace Service::PSC::Time

src/core/hle/service/psc/time/clocks/standard_network_system_clock_core.h

@@ -0,0 +1,30 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <chrono>
+
+#include "core/hle/result.h"
+#include "core/hle/service/psc/time/clocks/context_writers.h"
+#include "core/hle/service/psc/time/clocks/steady_clock_core.h"
+#include "core/hle/service/psc/time/clocks/system_clock_core.h"
+#include "core/hle/service/psc/time/common.h"
+
+namespace Service::PSC::Time {
+
+class StandardNetworkSystemClockCore : public SystemClockCore {
+public:
+    explicit StandardNetworkSystemClockCore(SteadyClockCore& steady_clock)
+        : SystemClockCore{steady_clock} {}
+    ~StandardNetworkSystemClockCore() override = default;
+
+    void Initialize(SystemClockContext& context, s64 accuracy);
+    bool IsAccuracySufficient();
+
+private:
+    s64 m_sufficient_accuracy{
+        std::chrono ::duration_cast<std::chrono::nanoseconds>(std::chrono::days(10)).count()};
+};
+
+} // namespace Service::PSC::Time

src/core/hle/service/psc/time/clocks/standard_steady_clock_core.cpp

@@ -0,0 +1,101 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include <chrono>
+
+#include "core/core.h"
+#include "core/core_timing.h"
+#include "core/hle/service/psc/time/clocks/standard_steady_clock_core.h"
+
+namespace Service::PSC::Time {
+
+void StandardSteadyClockCore::Initialize(ClockSourceId clock_source_id, s64 rtc_offset,
+                                         s64 internal_offset, s64 test_offset,
+                                         bool is_rtc_reset_detected) {
+    m_clock_source_id = clock_source_id;
+    m_rtc_offset = rtc_offset;
+    m_internal_offset = internal_offset;
+    m_test_offset = test_offset;
+    if (is_rtc_reset_detected) {
+        SetResetDetected();
+    }
+    SetInitialized();
+}
+
+void StandardSteadyClockCore::SetRtcOffset(s64 offset) {
+    m_rtc_offset = offset;
+}
+
+void StandardSteadyClockCore::SetContinuousAdjustment(ClockSourceId clock_source_id, s64 time) {
+    auto ticks{m_system.CoreTiming().GetClockTicks()};
+
+    m_continuous_adjustment_time_point.rtc_offset = ConvertToTimeSpan(ticks).count();
+    m_continuous_adjustment_time_point.diff_scale = 0;
+    m_continuous_adjustment_time_point.shift_amount = 0;
+    m_continuous_adjustment_time_point.lower = time;
+    m_continuous_adjustment_time_point.upper = time;
+    m_continuous_adjustment_time_point.clock_source_id = clock_source_id;
+}
+
+void StandardSteadyClockCore::GetContinuousAdjustment(
+    ContinuousAdjustmentTimePoint& out_time_point) const {
+    out_time_point = m_continuous_adjustment_time_point;
+}
+
+void StandardSteadyClockCore::UpdateContinuousAdjustmentTime(s64 in_time) {
+    auto ticks{m_system.CoreTiming().GetClockTicks()};
+    auto uptime_ns{ConvertToTimeSpan(ticks).count()};
+    auto adjusted_time{((uptime_ns - m_continuous_adjustment_time_point.rtc_offset) *
+                        m_continuous_adjustment_time_point.diff_scale) >>
+                       m_continuous_adjustment_time_point.shift_amount};
+    auto expected_time{adjusted_time + m_continuous_adjustment_time_point.lower};
+
+    auto last_time_point{m_continuous_adjustment_time_point.upper};
+    m_continuous_adjustment_time_point.upper = in_time;
+    auto t1{std::min<s64>(expected_time, last_time_point)};
+    expected_time = std::max<s64>(expected_time, last_time_point);
+    expected_time = m_continuous_adjustment_time_point.diff_scale >= 0 ? t1 : expected_time;
+
+    auto new_diff{in_time < expected_time ? -55 : 55};
+
+    m_continuous_adjustment_time_point.rtc_offset = uptime_ns;
+    m_continuous_adjustment_time_point.shift_amount = expected_time == in_time ? 0 : 14;
+    m_continuous_adjustment_time_point.diff_scale = expected_time == in_time ? 0 : new_diff;
+    m_continuous_adjustment_time_point.lower = expected_time;
+}
+
+Result StandardSteadyClockCore::GetCurrentTimePointImpl(SteadyClockTimePoint& out_time_point) {
+    auto current_time_ns = GetCurrentRawTimePointImpl();
+    auto current_time_s =
+        std::chrono::duration_cast<std::chrono::seconds>(std::chrono::nanoseconds(current_time_ns));
+    out_time_point.time_point = current_time_s.count();
+    out_time_point.clock_source_id = m_clock_source_id;
+    R_SUCCEED();
+}
+
+s64 StandardSteadyClockCore::GetCurrentRawTimePointImpl() {
+    std::scoped_lock l{m_mutex};
+    auto ticks{static_cast<s64>(m_system.CoreTiming().GetClockTicks())};
+    auto current_time_ns = m_rtc_offset + ConvertToTimeSpan(ticks).count();
+    auto time_point = std::max<s64>(current_time_ns, m_cached_time_point);
+    m_cached_time_point = time_point;
+    return time_point;
+}
+
+s64 StandardSteadyClockCore::GetTestOffsetImpl() const {
+    return m_test_offset;
+}
+
+void StandardSteadyClockCore::SetTestOffsetImpl(s64 offset) {
+    m_test_offset = offset;
+}
+
+s64 StandardSteadyClockCore::GetInternalOffsetImpl() const {
+    return m_internal_offset;
+}
+
+void StandardSteadyClockCore::SetInternalOffsetImpl(s64 offset) {
+    m_internal_offset = offset;
+}
+
+} // namespace Service::PSC::Time

src/core/hle/service/psc/time/clocks/standard_steady_clock_core.h

@@ -0,0 +1,54 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <mutex>
+
+#include "core/hle/service/psc/time/clocks/steady_clock_core.h"
+
+namespace Core {
+class System;
+}
+
+namespace Service::PSC::Time {
+class StandardSteadyClockCore : public SteadyClockCore {
+public:
+    explicit StandardSteadyClockCore(Core::System& system) : m_system{system} {}
+    ~StandardSteadyClockCore() override = default;
+
+    void Initialize(ClockSourceId clock_source_id, s64 rtc_offset, s64 internal_offset,
+                    s64 test_offset, bool is_rtc_reset_detected);
+
+    void SetRtcOffset(s64 offset);
+    void SetContinuousAdjustment(ClockSourceId clock_source_id, s64 time);
+    void GetContinuousAdjustment(ContinuousAdjustmentTimePoint& out_time_point) const;
+    void UpdateContinuousAdjustmentTime(s64 time);
+
+    Result GetCurrentTimePointImpl(SteadyClockTimePoint& out_time_point) override;
+    s64 GetCurrentRawTimePointImpl() override;
+    s64 GetTestOffsetImpl() const override;
+    void SetTestOffsetImpl(s64 offset) override;
+    s64 GetInternalOffsetImpl() const override;
+    void SetInternalOffsetImpl(s64 offset) override;
+
+    Result GetRtcValueImpl(s64& out_value) override {
+        R_RETURN(ResultNotImplemented);
+    }
+
+    Result GetSetupResultValueImpl() override {
+        R_SUCCEED();
+    }
+
+private:
+    Core::System& m_system;
+
+    std::mutex m_mutex;
+    s64 m_test_offset{};
+    s64 m_internal_offset{};
+    ClockSourceId m_clock_source_id{};
+    s64 m_rtc_offset{};
+    s64 m_cached_time_point{};
+    ContinuousAdjustmentTimePoint m_continuous_adjustment_time_point{};
+};
+} // namespace Service::PSC::Time

src/core/hle/service/psc/time/clocks/standard_user_system_clock_core.cpp

@@ -0,0 +1,63 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/core.h"
+#include "core/hle/service/psc/time/clocks/standard_user_system_clock_core.h"
+
+namespace Service::PSC::Time {
+
+StandardUserSystemClockCore::StandardUserSystemClockCore(
+    Core::System& system, StandardLocalSystemClockCore& local_clock,
+    StandardNetworkSystemClockCore& network_clock)
+    : SystemClockCore{local_clock.GetSteadyClock()}, m_system{system},
+      m_ctx{m_system, "Psc:StandardUserSystemClockCore"}, m_local_system_clock{local_clock},
+      m_network_system_clock{network_clock}, m_event{m_ctx.CreateEvent(
+                                                 "Psc:StandardUserSystemClockCore:Event")} {}
+
+StandardUserSystemClockCore::~StandardUserSystemClockCore() {
+    m_ctx.CloseEvent(m_event);
+}
+
+Result StandardUserSystemClockCore::SetAutomaticCorrection(bool automatic_correction) {
+    R_SUCCEED_IF(m_automatic_correction == automatic_correction);
+    R_SUCCEED_IF(!m_network_system_clock.CheckClockSourceMatches());
+
+    SystemClockContext context{};
+    R_TRY(m_network_system_clock.GetContext(context));
+    R_TRY(m_local_system_clock.SetContextAndWrite(context));
+
+    m_automatic_correction = automatic_correction;
+    R_SUCCEED();
+}
+
+Result StandardUserSystemClockCore::GetContext(SystemClockContext& out_context) const {
+    if (!m_automatic_correction) {
+        R_RETURN(m_local_system_clock.GetContext(out_context));
+    }
+
+    if (!m_network_system_clock.CheckClockSourceMatches()) {
+        R_RETURN(m_local_system_clock.GetContext(out_context));
+    }
+
+    SystemClockContext context{};
+    R_TRY(m_network_system_clock.GetContext(context));
+    R_TRY(m_local_system_clock.SetContextAndWrite(context));
+
+    R_RETURN(m_local_system_clock.GetContext(out_context));
+}
+
+Result StandardUserSystemClockCore::SetContext(SystemClockContext& context) {
+    R_RETURN(ResultNotImplemented);
+}
+
+Result StandardUserSystemClockCore::GetTimePoint(SteadyClockTimePoint& out_time_point) {
+    out_time_point = m_time_point;
+    R_SUCCEED();
+}
+
+void StandardUserSystemClockCore::SetTimePointAndSignal(SteadyClockTimePoint& time_point) {
+    m_time_point = time_point;
+    m_event->Signal();
+}
+
+} // namespace Service::PSC::Time

src/core/hle/service/psc/time/clocks/standard_user_system_clock_core.h

@@ -0,0 +1,55 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "core/hle/kernel/k_event.h"
+#include "core/hle/result.h"
+#include "core/hle/service/kernel_helpers.h"
+#include "core/hle/service/psc/time/clocks/context_writers.h"
+#include "core/hle/service/psc/time/clocks/standard_local_system_clock_core.h"
+#include "core/hle/service/psc/time/clocks/standard_network_system_clock_core.h"
+#include "core/hle/service/psc/time/clocks/steady_clock_core.h"
+#include "core/hle/service/psc/time/clocks/system_clock_core.h"
+#include "core/hle/service/psc/time/common.h"
+
+namespace Core {
+class System;
+}
+
+namespace Service::PSC::Time {
+
+class StandardUserSystemClockCore : public SystemClockCore {
+public:
+    explicit StandardUserSystemClockCore(Core::System& system,
+                                         StandardLocalSystemClockCore& local_clock,
+                                         StandardNetworkSystemClockCore& network_clock);
+    ~StandardUserSystemClockCore() override;
+
+    Kernel::KEvent& GetEvent() {
+        return *m_event;
+    }
+
+    bool GetAutomaticCorrection() const {
+        return m_automatic_correction;
+    }
+    Result SetAutomaticCorrection(bool automatic_correction);
+
+    Result GetContext(SystemClockContext& out_context) const override;
+    Result SetContext(SystemClockContext& context) override;
+
+    Result GetTimePoint(SteadyClockTimePoint& out_time_point);
+    void SetTimePointAndSignal(SteadyClockTimePoint& time_point);
+
+private:
+    Core::System& m_system;
+    KernelHelpers::ServiceContext m_ctx;
+
+    bool m_automatic_correction{};
+    StandardLocalSystemClockCore& m_local_system_clock;
+    StandardNetworkSystemClockCore& m_network_system_clock;
+    SteadyClockTimePoint m_time_point{};
+    Kernel::KEvent* m_event{};
+};
+
+} // namespace Service::PSC::Time

src/core/hle/service/psc/time/clocks/steady_clock_core.h

@@ -0,0 +1,81 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <chrono>
+
+#include "core/hle/result.h"
+#include "core/hle/service/psc/time/common.h"
+
+namespace Service::PSC::Time {
+
+class SteadyClockCore {
+public:
+    SteadyClockCore() = default;
+    virtual ~SteadyClockCore() = default;
+
+    void SetInitialized() {
+        m_initialized = true;
+    }
+
+    bool IsInitialized() const {
+        return m_initialized;
+    }
+
+    void SetResetDetected() {
+        m_reset_detected = true;
+    }
+
+    bool IsResetDetected() const {
+        return m_reset_detected;
+    }
+
+    Result GetCurrentTimePoint(SteadyClockTimePoint& out_time_point) {
+        R_TRY(GetCurrentTimePointImpl(out_time_point));
+
+        auto one_second_ns{
+            std::chrono::duration_cast<std::chrono::nanoseconds>(std::chrono::seconds(1)).count()};
+        out_time_point.time_point += GetTestOffsetImpl() / one_second_ns;
+        out_time_point.time_point += GetInternalOffsetImpl() / one_second_ns;
+        R_SUCCEED();
+    }
+
+    s64 GetTestOffset() const {
+        return GetTestOffsetImpl();
+    }
+
+    void SetTestOffset(s64 offset) {
+        SetTestOffsetImpl(offset);
+    }
+
+    s64 GetInternalOffset() const {
+        return GetInternalOffsetImpl();
+    }
+
+    s64 GetRawTime() {
+        return GetCurrentRawTimePointImpl() + GetTestOffsetImpl() + GetInternalOffsetImpl();
+    }
+
+    Result GetRtcValue(s64& out_value) {
+        R_RETURN(GetRtcValueImpl(out_value));
+    }
+
+    Result GetSetupResultValue() {
+        R_RETURN(GetSetupResultValueImpl());
+    }
+
+private:
+    virtual Result GetCurrentTimePointImpl(SteadyClockTimePoint& out_time_point) = 0;
+    virtual s64 GetCurrentRawTimePointImpl() = 0;
+    virtual s64 GetTestOffsetImpl() const = 0;
+    virtual void SetTestOffsetImpl(s64 offset) = 0;
+    virtual s64 GetInternalOffsetImpl() const = 0;
+    virtual void SetInternalOffsetImpl(s64 offset) = 0;
+    virtual Result GetRtcValueImpl(s64& out_value) = 0;
+    virtual Result GetSetupResultValueImpl() = 0;
+
+    bool m_initialized{};
+    bool m_reset_detected{};
+};
+} // namespace Service::PSC::Time

src/core/hle/service/psc/time/clocks/system_clock_core.cpp

@@ -0,0 +1,75 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/psc/time/clocks/context_writers.h"
+#include "core/hle/service/psc/time/clocks/system_clock_core.h"
+
+namespace Service::PSC::Time {
+
+bool SystemClockCore::CheckClockSourceMatches() {
+    SystemClockContext context{};
+    if (GetContext(context) != ResultSuccess) {
+        return false;
+    }
+
+    SteadyClockTimePoint time_point{};
+    if (m_steady_clock.GetCurrentTimePoint(time_point) != ResultSuccess) {
+        return false;
+    }
+
+    return context.steady_time_point.IdMatches(time_point);
+}
+
+Result SystemClockCore::GetCurrentTime(s64* out_time) const {
+    R_UNLESS(out_time != nullptr, ResultInvalidArgument);
+
+    SystemClockContext context{};
+    SteadyClockTimePoint time_point{};
+
+    R_TRY(m_steady_clock.GetCurrentTimePoint(time_point));
+    R_TRY(GetContext(context));
+
+    R_UNLESS(context.steady_time_point.IdMatches(time_point), ResultClockMismatch);
+
+    *out_time = context.offset + time_point.time_point;
+    R_SUCCEED();
+}
+
+Result SystemClockCore::SetCurrentTime(s64 time) {
+    SteadyClockTimePoint time_point{};
+    R_TRY(m_steady_clock.GetCurrentTimePoint(time_point));
+
+    SystemClockContext context{
+        .offset = time - time_point.time_point,
+        .steady_time_point = time_point,
+    };
+    R_RETURN(SetContextAndWrite(context));
+}
+
+Result SystemClockCore::GetContext(SystemClockContext& out_context) const {
+    out_context = m_context;
+    R_SUCCEED();
+}
+
+Result SystemClockCore::SetContext(SystemClockContext& context) {
+    m_context = context;
+    R_SUCCEED();
+}
+
+Result SystemClockCore::SetContextAndWrite(SystemClockContext& context) {
+    R_TRY(SetContext(context));
+
+    if (m_context_writer) {
+        R_RETURN(m_context_writer->Write(context));
+    }
+
+    R_SUCCEED();
+}
+
+void SystemClockCore::LinkOperationEvent(OperationEvent& operation_event) {
+    if (m_context_writer) {
+        m_context_writer->Link(operation_event);
+    }
+}
+
+} // namespace Service::PSC::Time

src/core/hle/service/psc/time/clocks/system_clock_core.h

@@ -0,0 +1,55 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "core/hle/result.h"
+#include "core/hle/service/psc/time/clocks/steady_clock_core.h"
+#include "core/hle/service/psc/time/common.h"
+
+namespace Service::PSC::Time {
+class ContextWriter;
+
+class SystemClockCore {
+public:
+    explicit SystemClockCore(SteadyClockCore& steady_clock) : m_steady_clock{steady_clock} {}
+    virtual ~SystemClockCore() = default;
+
+    SteadyClockCore& GetSteadyClock() {
+        return m_steady_clock;
+    }
+
+    bool IsInitialized() const {
+        return m_initialized;
+    }
+
+    void SetInitialized() {
+        m_initialized = true;
+    }
+
+    void SetContextWriter(ContextWriter& context_writer) {
+        m_context_writer = &context_writer;
+    }
+
+    bool CheckClockSourceMatches();
+
+    Result GetCurrentTime(s64* out_time) const;
+    Result SetCurrentTime(s64 time);
+
+    Result GetCurrentTimePoint(SteadyClockTimePoint& out_time_point) {
+        R_RETURN(m_steady_clock.GetCurrentTimePoint(out_time_point));
+    }
+
+    virtual Result GetContext(SystemClockContext& out_context) const;
+    virtual Result SetContext(SystemClockContext& context);
+    Result SetContextAndWrite(SystemClockContext& context);
+
+    void LinkOperationEvent(OperationEvent& operation_event);
+
+private:
+    bool m_initialized{};
+    ContextWriter* m_context_writer{};
+    SteadyClockCore& m_steady_clock;
+    SystemClockContext m_context{};
+};
+} // namespace Service::PSC::Time

src/core/hle/service/psc/time/clocks/tick_based_steady_clock_core.cpp

@@ -0,0 +1,43 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include <chrono>
+
+#include "core/core.h"
+#include "core/core_timing.h"
+#include "core/hle/service/psc/time/clocks/tick_based_steady_clock_core.h"
+
+namespace Service::PSC::Time {
+
+Result TickBasedSteadyClockCore::GetCurrentTimePointImpl(SteadyClockTimePoint& out_time_point) {
+    auto ticks{m_system.CoreTiming().GetClockTicks()};
+    auto current_time_s =
+        std::chrono::duration_cast<std::chrono::seconds>(ConvertToTimeSpan(ticks)).count();
+    out_time_point.time_point = current_time_s;
+    out_time_point.clock_source_id = m_clock_source_id;
+    R_SUCCEED();
+}
+
+s64 TickBasedSteadyClockCore::GetCurrentRawTimePointImpl() {
+    SteadyClockTimePoint time_point{};
+    if (GetCurrentTimePointImpl(time_point) != ResultSuccess) {
+        LOG_ERROR(Service_Time, "Failed to GetCurrentTimePoint!");
+    }
+    return std::chrono::duration_cast<std::chrono::nanoseconds>(
+               std::chrono::seconds(time_point.time_point))
+        .count();
+}
+
+s64 TickBasedSteadyClockCore::GetTestOffsetImpl() const {
+    return 0;
+}
+
+void TickBasedSteadyClockCore::SetTestOffsetImpl(s64 offset) {}
+
+s64 TickBasedSteadyClockCore::GetInternalOffsetImpl() const {
+    return 0;
+}
+
+void TickBasedSteadyClockCore::SetInternalOffsetImpl(s64 offset) {}
+
+} // namespace Service::PSC::Time

src/core/hle/service/psc/time/clocks/tick_based_steady_clock_core.h

@@ -0,0 +1,41 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <mutex>
+
+#include "common/uuid.h"
+#include "core/hle/service/psc/time/clocks/steady_clock_core.h"
+
+namespace Core {
+class System;
+}
+
+namespace Service::PSC::Time {
+class TickBasedSteadyClockCore : public SteadyClockCore {
+public:
+    explicit TickBasedSteadyClockCore(Core::System& system) : m_system{system} {}
+    ~TickBasedSteadyClockCore() override = default;
+
+    Result GetCurrentTimePointImpl(SteadyClockTimePoint& out_time_point) override;
+    s64 GetCurrentRawTimePointImpl() override;
+    s64 GetTestOffsetImpl() const override;
+    void SetTestOffsetImpl(s64 offset) override;
+    s64 GetInternalOffsetImpl() const override;
+    void SetInternalOffsetImpl(s64 offset) override;
+
+    Result GetRtcValueImpl(s64& out_value) override {
+        R_RETURN(ResultNotImplemented);
+    }
+
+    Result GetSetupResultValueImpl() override {
+        R_SUCCEED();
+    }
+
+private:
+    Core::System& m_system;
+
+    ClockSourceId m_clock_source_id{Common::UUID::MakeRandom()};
+};
+} // namespace Service::PSC::Time

src/core/hle/service/psc/time/common.cpp

@@ -0,0 +1,16 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/core.h"
+#include "core/hle/service/psc/time/common.h"
+
+namespace Service::PSC::Time {
+OperationEvent::OperationEvent(Core::System& system)
+    : m_ctx{system, "Time:OperationEvent"}, m_event{
+                                                m_ctx.CreateEvent("Time:OperationEvent:Event")} {}
+
+OperationEvent::~OperationEvent() {
+    m_ctx.CloseEvent(m_event);
+}
+
+} // namespace Service::PSC::Time

src/core/hle/service/psc/time/common.h

@@ -0,0 +1,168 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <array>
+#include <chrono>
+
+#include "common/common_types.h"
+#include "common/intrusive_list.h"
+#include "common/uuid.h"
+#include "common/wall_clock.h"
+#include "core/hle/kernel/k_event.h"
+#include "core/hle/service/kernel_helpers.h"
+#include "core/hle/service/psc/time/errors.h"
+
+namespace Core {
+class System;
+}
+
+namespace Service::PSC::Time {
+using ClockSourceId = Common::UUID;
+
+struct SteadyClockTimePoint {
+    constexpr bool IdMatches(SteadyClockTimePoint& other) {
+        return clock_source_id == other.clock_source_id;
+    }
+    bool operator==(const SteadyClockTimePoint& other) const = default;
+
+    s64 time_point;
+    ClockSourceId clock_source_id;
+};
+static_assert(sizeof(SteadyClockTimePoint) == 0x18, "SteadyClockTimePoint has the wrong size!");
+static_assert(std::is_trivial_v<ClockSourceId>);
+
+struct SystemClockContext {
+    bool operator==(const SystemClockContext& other) const = default;
+
+    s64 offset;
+    SteadyClockTimePoint steady_time_point;
+};
+static_assert(sizeof(SystemClockContext) == 0x20, "SystemClockContext has the wrong size!");
+static_assert(std::is_trivial_v<SystemClockContext>);
+
+enum class TimeType : u8 {
+    UserSystemClock,
+    NetworkSystemClock,
+    LocalSystemClock,
+};
+
+struct CalendarTime {
+    s16 year;
+    s8 month;
+    s8 day;
+    s8 hour;
+    s8 minute;
+    s8 second;
+};
+static_assert(sizeof(CalendarTime) == 0x8, "CalendarTime has the wrong size!");
+
+struct CalendarAdditionalInfo {
+    s32 day_of_week;
+    s32 day_of_year;
+    std::array<char, 8> name;
+    s32 is_dst;
+    s32 ut_offset;
+};
+static_assert(sizeof(CalendarAdditionalInfo) == 0x18, "CalendarAdditionalInfo has the wrong size!");
+
+struct LocationName {
+    std::array<char, 36> name;
+};
+static_assert(sizeof(LocationName) == 0x24, "LocationName has the wrong size!");
+
+struct RuleVersion {
+    std::array<char, 16> version;
+};
+static_assert(sizeof(RuleVersion) == 0x10, "RuleVersion has the wrong size!");
+
+struct ClockSnapshot {
+    SystemClockContext user_context;
+    SystemClockContext network_context;
+    s64 user_time;
+    s64 network_time;
+    CalendarTime user_calendar_time;
+    CalendarTime network_calendar_time;
+    CalendarAdditionalInfo user_calendar_additional_time;
+    CalendarAdditionalInfo network_calendar_additional_time;
+    SteadyClockTimePoint steady_clock_time_point;
+    LocationName location_name;
+    bool is_automatic_correction_enabled;
+    TimeType type;
+    u16 unk_CE;
+};
+static_assert(sizeof(ClockSnapshot) == 0xD0, "ClockSnapshot has the wrong size!");
+static_assert(std::is_trivial_v<ClockSnapshot>);
+
+struct ContinuousAdjustmentTimePoint {
+    s64 rtc_offset;
+    s64 diff_scale;
+    s64 shift_amount;
+    s64 lower;
+    s64 upper;
+    ClockSourceId clock_source_id;
+};
+static_assert(sizeof(ContinuousAdjustmentTimePoint) == 0x38,
+              "ContinuousAdjustmentTimePoint has the wrong size!");
+static_assert(std::is_trivial_v<ContinuousAdjustmentTimePoint>);
+
+struct AlarmInfo {
+    s64 alert_time;
+    u32 priority;
+};
+static_assert(sizeof(AlarmInfo) == 0x10, "AlarmInfo has the wrong size!");
+
+struct StaticServiceSetupInfo {
+    bool can_write_local_clock;
+    bool can_write_user_clock;
+    bool can_write_network_clock;
+    bool can_write_timezone_device_location;
+    bool can_write_steady_clock;
+    bool can_write_uninitialized_clock;
+};
+static_assert(sizeof(StaticServiceSetupInfo) == 0x6, "StaticServiceSetupInfo has the wrong size!");
+
+struct OperationEvent : public Common::IntrusiveListBaseNode<OperationEvent> {
+    using OperationEventList = Common::IntrusiveListBaseTraits<OperationEvent>::ListType;
+
+    OperationEvent(Core::System& system);
+    ~OperationEvent();
+
+    KernelHelpers::ServiceContext m_ctx;
+    Kernel::KEvent* m_event{};
+};
+
+constexpr inline std::chrono::nanoseconds ConvertToTimeSpan(s64 ticks) {
+    constexpr auto one_second_ns{
+        std::chrono::duration_cast<std::chrono::nanoseconds>(std::chrono::seconds(1)).count()};
+
+    constexpr s64 max{Common::WallClock::CNTFRQ *
+                      (std::numeric_limits<s64>::max() / one_second_ns)};
+
+    if (ticks > max) {
+        return std::chrono::nanoseconds(std::numeric_limits<s64>::max());
+    } else if (ticks < -max) {
+        return std::chrono::nanoseconds(std::numeric_limits<s64>::min());
+    }
+
+    auto a{ticks / Common::WallClock::CNTFRQ * one_second_ns};
+    auto b{((ticks % Common::WallClock::CNTFRQ) * one_second_ns) / Common::WallClock::CNTFRQ};
+
+    return std::chrono::nanoseconds(a + b);
+}
+
+constexpr inline Result GetSpanBetweenTimePoints(s64* out_seconds, SteadyClockTimePoint& a,
+                                                 SteadyClockTimePoint& b) {
+    R_UNLESS(out_seconds, ResultInvalidArgument);
+    R_UNLESS(a.IdMatches(b), ResultInvalidArgument);
+    R_UNLESS(a.time_point >= 0 || b.time_point <= a.time_point + std::numeric_limits<s64>::max(),
+             ResultOverflow);
+    R_UNLESS(a.time_point < 0 || b.time_point >= a.time_point + std::numeric_limits<s64>::min(),
+             ResultOverflow);
+
+    *out_seconds = b.time_point - a.time_point;
+    R_SUCCEED();
+}
+
+} // namespace Service::PSC::Time

src/core/hle/service/psc/time/errors.h

@@ -0,0 +1,24 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "core/hle/result.h"
+
+namespace Service::PSC::Time {
+
+constexpr Result ResultPermissionDenied{ErrorModule::Time, 1};
+constexpr Result ResultClockMismatch{ErrorModule::Time, 102};
+constexpr Result ResultClockUninitialized{ErrorModule::Time, 103};
+constexpr Result ResultTimeNotFound{ErrorModule::Time, 200};
+constexpr Result ResultOverflow{ErrorModule::Time, 201};
+constexpr Result ResultFailed{ErrorModule::Time, 801};
+constexpr Result ResultInvalidArgument{ErrorModule::Time, 901};
+constexpr Result ResultTimeZoneOutOfRange{ErrorModule::Time, 902};
+constexpr Result ResultTimeZoneParseFailed{ErrorModule::Time, 903};
+constexpr Result ResultRtcTimeout{ErrorModule::Time, 988};
+constexpr Result ResultTimeZoneNotFound{ErrorModule::Time, 989};
+constexpr Result ResultNotImplemented{ErrorModule::Time, 990};
+constexpr Result ResultAlarmNotRegistered{ErrorModule::Time, 1502};
+
+} // namespace Service::PSC::Time

src/core/hle/service/psc/time/manager.h

@@ -0,0 +1,56 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "core/hle/service/psc/time/alarms.h"
+#include "core/hle/service/psc/time/clocks/context_writers.h"
+#include "core/hle/service/psc/time/clocks/ephemeral_network_system_clock_core.h"
+#include "core/hle/service/psc/time/clocks/standard_local_system_clock_core.h"
+#include "core/hle/service/psc/time/clocks/standard_network_system_clock_core.h"
+#include "core/hle/service/psc/time/clocks/standard_steady_clock_core.h"
+#include "core/hle/service/psc/time/clocks/standard_user_system_clock_core.h"
+#include "core/hle/service/psc/time/clocks/tick_based_steady_clock_core.h"
+#include "core/hle/service/psc/time/power_state_request_manager.h"
+#include "core/hle/service/psc/time/shared_memory.h"
+#include "core/hle/service/psc/time/time_zone.h"
+
+namespace Core {
+class System;
+}
+
+namespace Service::PSC::Time {
+class TimeManager {
+public:
+    explicit TimeManager(Core::System& system)
+        : m_system{system}, m_standard_steady_clock{system}, m_tick_based_steady_clock{m_system},
+          m_standard_local_system_clock{m_standard_steady_clock},
+          m_standard_network_system_clock{m_standard_steady_clock},
+          m_standard_user_system_clock{m_system, m_standard_local_system_clock,
+                                       m_standard_network_system_clock},
+          m_ephemeral_network_clock{m_tick_based_steady_clock}, m_shared_memory{m_system},
+          m_power_state_request_manager{m_system}, m_alarms{m_system, m_standard_steady_clock,
+                                                            m_power_state_request_manager},
+          m_local_system_clock_context_writer{m_system, m_shared_memory},
+          m_network_system_clock_context_writer{m_system, m_shared_memory,
+                                                m_standard_user_system_clock},
+          m_ephemeral_network_clock_context_writer{m_system} {}
+
+    Core::System& m_system;
+
+    StandardSteadyClockCore m_standard_steady_clock;
+    TickBasedSteadyClockCore m_tick_based_steady_clock;
+    StandardLocalSystemClockCore m_standard_local_system_clock;
+    StandardNetworkSystemClockCore m_standard_network_system_clock;
+    StandardUserSystemClockCore m_standard_user_system_clock;
+    EphemeralNetworkSystemClockCore m_ephemeral_network_clock;
+    TimeZone m_time_zone;
+    SharedMemory m_shared_memory;
+    PowerStateRequestManager m_power_state_request_manager;
+    Alarms m_alarms;
+    LocalSystemClockContextWriter m_local_system_clock_context_writer;
+    NetworkSystemClockContextWriter m_network_system_clock_context_writer;
+    EphemeralNetworkSystemClockContextWriter m_ephemeral_network_clock_context_writer;
+};
+
+} // namespace Service::PSC::Time

src/core/hle/service/psc/time/power_state_request_manager.cpp

@@ -0,0 +1,50 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/core.h"
+#include "core/hle/service/psc/time/power_state_request_manager.h"
+
+namespace Service::PSC::Time {
+
+PowerStateRequestManager::PowerStateRequestManager(Core::System& system)
+    : m_system{system}, m_ctx{system, "Psc:PowerStateRequestManager"},
+      m_event{m_ctx.CreateEvent("Psc:PowerStateRequestManager:Event")} {}
+
+PowerStateRequestManager::~PowerStateRequestManager() {
+    m_ctx.CloseEvent(m_event);
+}
+
+void PowerStateRequestManager::UpdatePendingPowerStateRequestPriority(u32 priority) {
+    std::scoped_lock l{m_mutex};
+    if (m_has_pending_request) {
+        m_pending_request_priority = std::max(m_pending_request_priority, priority);
+    } else {
+        m_pending_request_priority = priority;
+        m_has_pending_request = true;
+    }
+}
+
+void PowerStateRequestManager::SignalPowerStateRequestAvailability() {
+    std::scoped_lock l{m_mutex};
+    if (m_has_pending_request) {
+        if (!m_has_available_request) {
+            m_has_available_request = true;
+        }
+        m_has_pending_request = false;
+        m_available_request_priority = m_pending_request_priority;
+        m_event->Signal();
+    }
+}
+
+bool PowerStateRequestManager::GetAndClearPowerStateRequest(u32& out_priority) {
+    std::scoped_lock l{m_mutex};
+    auto had_request{m_has_available_request};
+    if (m_has_available_request) {
+        out_priority = m_available_request_priority;
+        m_has_available_request = false;
+        m_event->Clear();
+    }
+    return had_request;
+}
+
+} // namespace Service::PSC::Time

src/core/hle/service/psc/time/power_state_request_manager.h

@@ -0,0 +1,42 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <mutex>
+
+#include "core/hle/kernel/k_event.h"
+#include "core/hle/service/kernel_helpers.h"
+
+namespace Core {
+class System;
+}
+
+namespace Service::PSC::Time {
+
+class PowerStateRequestManager {
+public:
+    explicit PowerStateRequestManager(Core::System& system);
+    ~PowerStateRequestManager();
+
+    Kernel::KReadableEvent& GetReadableEvent() {
+        return m_event->GetReadableEvent();
+    }
+
+    void UpdatePendingPowerStateRequestPriority(u32 priority);
+    void SignalPowerStateRequestAvailability();
+    bool GetAndClearPowerStateRequest(u32& out_priority);
+
+private:
+    Core::System& m_system;
+    KernelHelpers::ServiceContext m_ctx;
+
+    Kernel::KEvent* m_event{};
+    bool m_has_pending_request{};
+    u32 m_pending_request_priority{};
+    bool m_has_available_request{};
+    u32 m_available_request_priority{};
+    std::mutex m_mutex;
+};
+
+} // namespace Service::PSC::Time

src/core/hle/service/psc/time/power_state_service.cpp

@@ -0,0 +1,49 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/psc/time/power_state_service.h"
+
+namespace Service::PSC::Time {
+
+IPowerStateRequestHandler::IPowerStateRequestHandler(
+    Core::System& system_, PowerStateRequestManager& power_state_request_manager)
+    : ServiceFramework{system_, "time:p"}, m_system{system}, m_power_state_request_manager{
+                                                                 power_state_request_manager} {
+    // clang-format off
+        static const FunctionInfo functions[] = {
+            {0, &IPowerStateRequestHandler::GetPowerStateRequestEventReadableHandle, "GetPowerStateRequestEventReadableHandle"},
+            {1, &IPowerStateRequestHandler::GetAndClearPowerStateRequest, "GetAndClearPowerStateRequest"},
+        };
+    // clang-format on
+
+    RegisterHandlers(functions);
+}
+
+void IPowerStateRequestHandler::GetPowerStateRequestEventReadableHandle(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::ResponseBuilder rb{ctx, 2, 1};
+    rb.Push(ResultSuccess);
+    rb.PushCopyObjects(m_power_state_request_manager.GetReadableEvent());
+}
+
+void IPowerStateRequestHandler::GetAndClearPowerStateRequest(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    u32 priority{};
+    auto cleared = m_power_state_request_manager.GetAndClearPowerStateRequest(priority);
+
+    if (cleared) {
+        IPC::ResponseBuilder rb{ctx, 4};
+        rb.Push(ResultSuccess);
+        rb.Push(priority);
+        rb.Push(cleared);
+        return;
+    }
+
+    IPC::ResponseBuilder rb{ctx, 3};
+    rb.Push(ResultSuccess);
+    rb.Push(cleared);
+}
+
+} // namespace Service::PSC::Time

src/core/hle/service/psc/time/power_state_service.h

@@ -0,0 +1,32 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "core/hle/service/ipc_helpers.h"
+#include "core/hle/service/psc/time/power_state_request_manager.h"
+#include "core/hle/service/server_manager.h"
+#include "core/hle/service/service.h"
+
+namespace Core {
+class System;
+}
+
+namespace Service::PSC::Time {
+
+class IPowerStateRequestHandler final : public ServiceFramework<IPowerStateRequestHandler> {
+public:
+    explicit IPowerStateRequestHandler(Core::System& system,
+                                       PowerStateRequestManager& power_state_request_manager);
+
+    ~IPowerStateRequestHandler() override = default;
+
+private:
+    void GetPowerStateRequestEventReadableHandle(HLERequestContext& ctx);
+    void GetAndClearPowerStateRequest(HLERequestContext& ctx);
+
+    Core::System& m_system;
+    PowerStateRequestManager& m_power_state_request_manager;
+};
+
+} // namespace Service::PSC::Time

src/core/hle/service/psc/time/service_manager.cpp

@@ -0,0 +1,494 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/core.h"
+#include "core/core_timing.h"
+#include "core/hle/service/psc/time/power_state_service.h"
+#include "core/hle/service/psc/time/service_manager.h"
+#include "core/hle/service/psc/time/static.h"
+
+namespace Service::PSC::Time {
+
+ServiceManager::ServiceManager(Core::System& system_, std::shared_ptr<TimeManager> time,
+                               ServerManager* server_manager)
+    : ServiceFramework{system_, "time:m"}, m_system{system}, m_time{std::move(time)},
+      m_server_manager{*server_manager},
+      m_local_system_clock{m_time->m_standard_local_system_clock},
+      m_user_system_clock{m_time->m_standard_user_system_clock},
+      m_network_system_clock{m_time->m_standard_network_system_clock},
+      m_steady_clock{m_time->m_standard_steady_clock}, m_time_zone{m_time->m_time_zone},
+      m_ephemeral_network_clock{m_time->m_ephemeral_network_clock},
+      m_shared_memory{m_time->m_shared_memory}, m_alarms{m_time->m_alarms},
+      m_local_system_context_writer{m_time->m_local_system_clock_context_writer},
+      m_network_system_context_writer{m_time->m_network_system_clock_context_writer},
+      m_ephemeral_system_context_writer{m_time->m_ephemeral_network_clock_context_writer},
+      m_local_operation{m_system}, m_network_operation{m_system}, m_ephemeral_operation{m_system} {
+    // clang-format off
+    static const FunctionInfo functions[] = {
+        {0,   &ServiceManager::Handle_GetStaticServiceAsUser, "GetStaticServiceAsUser"},
+        {5,   &ServiceManager::Handle_GetStaticServiceAsAdmin, "GetStaticServiceAsAdmin"},
+        {6,   &ServiceManager::Handle_GetStaticServiceAsRepair, "GetStaticServiceAsRepair"},
+        {9,   &ServiceManager::Handle_GetStaticServiceAsServiceManager, "GetStaticServiceAsServiceManager"},
+        {10,  &ServiceManager::Handle_SetupStandardSteadyClockCore, "SetupStandardSteadyClockCore"},
+        {11,  &ServiceManager::Handle_SetupStandardLocalSystemClockCore, "SetupStandardLocalSystemClockCore"},
+        {12,  &ServiceManager::Handle_SetupStandardNetworkSystemClockCore, "SetupStandardNetworkSystemClockCore"},
+        {13,  &ServiceManager::Handle_SetupStandardUserSystemClockCore, "SetupStandardUserSystemClockCore"},
+        {14,  &ServiceManager::Handle_SetupTimeZoneServiceCore, "SetupTimeZoneServiceCore"},
+        {15,  &ServiceManager::Handle_SetupEphemeralNetworkSystemClockCore, "SetupEphemeralNetworkSystemClockCore"},
+        {50,  &ServiceManager::Handle_GetStandardLocalClockOperationEvent, "GetStandardLocalClockOperationEvent"},
+        {51,  &ServiceManager::Handle_GetStandardNetworkClockOperationEventForServiceManager, "GetStandardNetworkClockOperationEventForServiceManager"},
+        {52,  &ServiceManager::Handle_GetEphemeralNetworkClockOperationEventForServiceManager, "GetEphemeralNetworkClockOperationEventForServiceManager"},
+        {60,  &ServiceManager::Handle_GetStandardUserSystemClockAutomaticCorrectionUpdatedEvent, "GetStandardUserSystemClockAutomaticCorrectionUpdatedEvent"},
+        {100, &ServiceManager::Handle_SetStandardSteadyClockBaseTime, "SetStandardSteadyClockBaseTime"},
+        {200, &ServiceManager::Handle_GetClosestAlarmUpdatedEvent, "GetClosestAlarmUpdatedEvent"},
+        {201, &ServiceManager::Handle_CheckAndSignalAlarms, "CheckAndSignalAlarms"},
+        {202, &ServiceManager::Handle_GetClosestAlarmInfo, "GetClosestAlarmInfo "},
+    };
+    // clang-format on
+    RegisterHandlers(functions);
+
+    m_local_system_context_writer.Link(m_local_operation);
+    m_network_system_context_writer.Link(m_network_operation);
+    m_ephemeral_system_context_writer.Link(m_ephemeral_operation);
+}
+
+void ServiceManager::SetupSAndP() {
+    if (!m_is_s_and_p_setup) {
+        m_is_s_and_p_setup = true;
+        m_server_manager.RegisterNamedService(
+            "time:s", std::make_shared<StaticService>(
+                          m_system, StaticServiceSetupInfo{0, 0, 1, 0, 0, 0}, m_time, "time:s"));
+        m_server_manager.RegisterNamedService("time:p",
+                                              std::make_shared<IPowerStateRequestHandler>(
+                                                  m_system, m_time->m_power_state_request_manager));
+    }
+}
+
+void ServiceManager::CheckAndSetupServicesSAndP() {
+    if (m_local_system_clock.IsInitialized() && m_user_system_clock.IsInitialized() &&
+        m_network_system_clock.IsInitialized() && m_steady_clock.IsInitialized() &&
+        m_time_zone.IsInitialized() && m_ephemeral_network_clock.IsInitialized()) {
+        SetupSAndP();
+    }
+}
+
+void ServiceManager::Handle_GetStaticServiceAsUser(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    std::shared_ptr<StaticService> service{};
+    auto res = GetStaticServiceAsUser(service);
+
+    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    rb.Push(res);
+    rb.PushIpcInterface<StaticService>(std::move(service));
+}
+
+void ServiceManager::Handle_GetStaticServiceAsAdmin(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    std::shared_ptr<StaticService> service{};
+    auto res = GetStaticServiceAsAdmin(service);
+
+    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    rb.Push(res);
+    rb.PushIpcInterface<StaticService>(std::move(service));
+}
+
+void ServiceManager::Handle_GetStaticServiceAsRepair(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    std::shared_ptr<StaticService> service{};
+    auto res = GetStaticServiceAsRepair(service);
+
+    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    rb.Push(res);
+    rb.PushIpcInterface<StaticService>(std::move(service));
+}
+
+void ServiceManager::Handle_GetStaticServiceAsServiceManager(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    std::shared_ptr<StaticService> service{};
+    auto res = GetStaticServiceAsServiceManager(service);
+
+    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    rb.Push(res);
+    rb.PushIpcInterface<StaticService>(std::move(service));
+}
+
+void ServiceManager::Handle_SetupStandardSteadyClockCore(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    struct Parameters {
+        bool reset_detected;
+        Common::UUID clock_source_id;
+        s64 rtc_offset;
+        s64 internal_offset;
+        s64 test_offset;
+    };
+    static_assert(sizeof(Parameters) == 0x30);
+
+    IPC::RequestParser rp{ctx};
+    auto params{rp.PopRaw<Parameters>()};
+
+    auto res = SetupStandardSteadyClockCore(params.clock_source_id, params.rtc_offset,
+                                            params.internal_offset, params.test_offset,
+                                            params.reset_detected);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(res);
+}
+
+void ServiceManager::Handle_SetupStandardLocalSystemClockCore(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::RequestParser rp{ctx};
+    auto context{rp.PopRaw<SystemClockContext>()};
+    auto time{rp.Pop<s64>()};
+
+    auto res = SetupStandardLocalSystemClockCore(context, time);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(res);
+}
+
+void ServiceManager::Handle_SetupStandardNetworkSystemClockCore(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::RequestParser rp{ctx};
+    auto context{rp.PopRaw<SystemClockContext>()};
+    auto accuracy{rp.Pop<s64>()};
+
+    auto res = SetupStandardNetworkSystemClockCore(context, accuracy);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(res);
+}
+
+void ServiceManager::Handle_SetupStandardUserSystemClockCore(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    struct Parameters {
+        bool automatic_correction;
+        SteadyClockTimePoint time_point;
+    };
+    static_assert(sizeof(Parameters) == 0x20);
+
+    IPC::RequestParser rp{ctx};
+    auto params{rp.PopRaw<Parameters>()};
+
+    auto res = SetupStandardUserSystemClockCore(params.time_point, params.automatic_correction);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(res);
+}
+
+void ServiceManager::Handle_SetupTimeZoneServiceCore(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    struct Parameters {
+        u32 location_count;
+        LocationName name;
+        SteadyClockTimePoint time_point;
+        RuleVersion rule_version;
+    };
+    static_assert(sizeof(Parameters) == 0x50);
+
+    IPC::RequestParser rp{ctx};
+    auto params{rp.PopRaw<Parameters>()};
+
+    auto rule_buffer{ctx.ReadBuffer()};
+
+    auto res = SetupTimeZoneServiceCore(params.name, params.time_point, params.rule_version,
+                                        params.location_count, rule_buffer);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(res);
+}
+
+void ServiceManager::Handle_SetupEphemeralNetworkSystemClockCore(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    auto res = SetupEphemeralNetworkSystemClockCore();
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(res);
+}
+
+void ServiceManager::Handle_GetStandardLocalClockOperationEvent(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    Kernel::KEvent* event{};
+    auto res = GetStandardLocalClockOperationEvent(&event);
+
+    IPC::ResponseBuilder rb{ctx, 2, 1};
+    rb.Push(res);
+    rb.PushCopyObjects(event->GetReadableEvent());
+}
+
+void ServiceManager::Handle_GetStandardNetworkClockOperationEventForServiceManager(
+    HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    Kernel::KEvent* event{};
+    auto res = GetStandardNetworkClockOperationEventForServiceManager(&event);
+
+    IPC::ResponseBuilder rb{ctx, 2, 1};
+    rb.Push(res);
+    rb.PushCopyObjects(event);
+}
+
+void ServiceManager::Handle_GetEphemeralNetworkClockOperationEventForServiceManager(
+    HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    Kernel::KEvent* event{};
+    auto res = GetEphemeralNetworkClockOperationEventForServiceManager(&event);
+
+    IPC::ResponseBuilder rb{ctx, 2, 1};
+    rb.Push(res);
+    rb.PushCopyObjects(event);
+}
+
+void ServiceManager::Handle_GetStandardUserSystemClockAutomaticCorrectionUpdatedEvent(
+    HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    Kernel::KEvent* event{};
+    auto res = GetStandardUserSystemClockAutomaticCorrectionUpdatedEvent(&event);
+
+    IPC::ResponseBuilder rb{ctx, 2, 1};
+    rb.Push(res);
+    rb.PushCopyObjects(event);
+}
+
+void ServiceManager::Handle_SetStandardSteadyClockBaseTime(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::RequestParser rp{ctx};
+    auto base_time{rp.Pop<s64>()};
+
+    auto res = SetStandardSteadyClockBaseTime(base_time);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(res);
+}
+
+void ServiceManager::Handle_GetClosestAlarmUpdatedEvent(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    Kernel::KEvent* event{};
+    auto res = GetClosestAlarmUpdatedEvent(&event);
+
+    IPC::ResponseBuilder rb{ctx, 3};
+    rb.Push(res);
+    rb.PushCopyObjects(event->GetReadableEvent());
+}
+
+void ServiceManager::Handle_CheckAndSignalAlarms(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    auto res = CheckAndSignalAlarms();
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(res);
+}
+
+void ServiceManager::Handle_GetClosestAlarmInfo(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    AlarmInfo alarm_info{};
+    bool is_valid{};
+    s64 time{};
+    auto res = GetClosestAlarmInfo(is_valid, alarm_info, time);
+
+    struct OutParameters {
+        bool is_valid;
+        AlarmInfo alarm_info;
+        s64 time;
+    };
+    static_assert(sizeof(OutParameters) == 0x20);
+
+    OutParameters out_params{
+        .is_valid = is_valid,
+        .alarm_info = alarm_info,
+        .time = time,
+    };
+
+    IPC::ResponseBuilder rb{ctx, 2 + sizeof(OutParameters) / sizeof(u32)};
+    rb.Push(res);
+    rb.PushRaw<OutParameters>(out_params);
+}
+
+// =============================== Implementations ===========================
+
+Result ServiceManager::GetStaticService(std::shared_ptr<StaticService>& out_service,
+                                        StaticServiceSetupInfo setup_info, const char* name) {
+    out_service = std::make_shared<StaticService>(m_system, setup_info, m_time, name);
+    R_SUCCEED();
+}
+
+Result ServiceManager::GetStaticServiceAsUser(std::shared_ptr<StaticService>& out_service) {
+    R_RETURN(GetStaticService(out_service, StaticServiceSetupInfo{0, 0, 0, 0, 0, 0}, "time:u"));
+}
+
+Result ServiceManager::GetStaticServiceAsAdmin(std::shared_ptr<StaticService>& out_service) {
+    R_RETURN(GetStaticService(out_service, StaticServiceSetupInfo{1, 1, 0, 1, 0, 0}, "time:a"));
+}
+
+Result ServiceManager::GetStaticServiceAsRepair(std::shared_ptr<StaticService>& out_service) {
+    R_RETURN(GetStaticService(out_service, StaticServiceSetupInfo{0, 0, 0, 0, 1, 0}, "time:r"));
+}
+
+Result ServiceManager::GetStaticServiceAsServiceManager(
+    std::shared_ptr<StaticService>& out_service) {
+    R_RETURN(GetStaticService(out_service, StaticServiceSetupInfo{1, 1, 1, 1, 1, 0}, "time:sm"));
+}
+
+Result ServiceManager::SetupStandardSteadyClockCore(Common::UUID& clock_source_id, s64 rtc_offset,
+                                                    s64 internal_offset, s64 test_offset,
+                                                    bool is_rtc_reset_detected) {
+    m_steady_clock.Initialize(clock_source_id, rtc_offset, internal_offset, test_offset,
+                              is_rtc_reset_detected);
+    auto time = m_steady_clock.GetRawTime();
+    auto ticks = m_system.CoreTiming().GetClockTicks();
+    auto boot_time = time - ConvertToTimeSpan(ticks).count();
+    m_shared_memory.SetSteadyClockTimePoint(clock_source_id, boot_time);
+    m_steady_clock.SetContinuousAdjustment(clock_source_id, boot_time);
+
+    ContinuousAdjustmentTimePoint time_point{};
+    m_steady_clock.GetContinuousAdjustment(time_point);
+    m_shared_memory.SetContinuousAdjustment(time_point);
+
+    CheckAndSetupServicesSAndP();
+    R_SUCCEED();
+}
+
+Result ServiceManager::SetupStandardLocalSystemClockCore(SystemClockContext& context, s64 time) {
+    m_local_system_clock.SetContextWriter(m_local_system_context_writer);
+    m_local_system_clock.Initialize(context, time);
+
+    CheckAndSetupServicesSAndP();
+    R_SUCCEED();
+}
+
+Result ServiceManager::SetupStandardNetworkSystemClockCore(SystemClockContext& context,
+                                                           s64 accuracy) {
+    // TODO this is a hack! The network clock should be updated independently, from the ntc service
+    // and maybe elsewhere. We do not do that, so fix the clock to the local clock on first boot
+    // to avoid it being stuck at 0.
+    if (context == Service::PSC::Time::SystemClockContext{}) {
+        m_local_system_clock.GetContext(context);
+    }
+
+    m_network_system_clock.SetContextWriter(m_network_system_context_writer);
+    m_network_system_clock.Initialize(context, accuracy);
+
+    CheckAndSetupServicesSAndP();
+    R_SUCCEED();
+}
+
+Result ServiceManager::SetupStandardUserSystemClockCore(SteadyClockTimePoint& time_point,
+                                                        bool automatic_correction) {
+    // TODO this is a hack! The user clock should be updated independently, from the ntc service
+    // and maybe elsewhere. We do not do that, so fix the clock to the local clock on first boot
+    // to avoid it being stuck at 0.
+    if (time_point == Service::PSC::Time::SteadyClockTimePoint{}) {
+        m_local_system_clock.GetCurrentTimePoint(time_point);
+    }
+
+    m_user_system_clock.SetAutomaticCorrection(automatic_correction);
+    m_user_system_clock.SetTimePointAndSignal(time_point);
+    m_user_system_clock.SetInitialized();
+    m_shared_memory.SetAutomaticCorrection(automatic_correction);
+
+    CheckAndSetupServicesSAndP();
+    R_SUCCEED();
+}
+
+Result ServiceManager::SetupTimeZoneServiceCore(LocationName& name,
+                                                SteadyClockTimePoint& time_point,
+                                                RuleVersion& rule_version, u32 location_count,
+                                                std::span<const u8> rule_buffer) {
+    if (m_time_zone.ParseBinary(name, rule_buffer) != ResultSuccess) {
+        LOG_ERROR(Service_Time, "Failed to parse time zone binary!");
+    }
+
+    m_time_zone.SetTimePoint(time_point);
+    m_time_zone.SetTotalLocationNameCount(location_count);
+    m_time_zone.SetRuleVersion(rule_version);
+    m_time_zone.SetInitialized();
+
+    CheckAndSetupServicesSAndP();
+    R_SUCCEED();
+}
+
+Result ServiceManager::SetupEphemeralNetworkSystemClockCore() {
+    m_ephemeral_network_clock.SetContextWriter(m_ephemeral_system_context_writer);
+    m_ephemeral_network_clock.SetInitialized();
+
+    CheckAndSetupServicesSAndP();
+    R_SUCCEED();
+}
+
+Result ServiceManager::GetStandardLocalClockOperationEvent(Kernel::KEvent** out_event) {
+    *out_event = m_local_operation.m_event;
+    R_SUCCEED();
+}
+
+Result ServiceManager::GetStandardNetworkClockOperationEventForServiceManager(
+    Kernel::KEvent** out_event) {
+    *out_event = m_network_operation.m_event;
+    R_SUCCEED();
+}
+
+Result ServiceManager::GetEphemeralNetworkClockOperationEventForServiceManager(
+    Kernel::KEvent** out_event) {
+    *out_event = m_ephemeral_operation.m_event;
+    R_SUCCEED();
+}
+
+Result ServiceManager::GetStandardUserSystemClockAutomaticCorrectionUpdatedEvent(
+    Kernel::KEvent** out_event) {
+    *out_event = &m_user_system_clock.GetEvent();
+    R_SUCCEED();
+}
+
+Result ServiceManager::SetStandardSteadyClockBaseTime(s64 base_time) {
+    m_steady_clock.SetRtcOffset(base_time);
+    auto time = m_steady_clock.GetRawTime();
+    auto ticks = m_system.CoreTiming().GetClockTicks();
+    auto diff = time - ConvertToTimeSpan(ticks).count();
+    m_shared_memory.UpdateBaseTime(diff);
+    m_steady_clock.UpdateContinuousAdjustmentTime(diff);
+
+    ContinuousAdjustmentTimePoint time_point{};
+    m_steady_clock.GetContinuousAdjustment(time_point);
+    m_shared_memory.SetContinuousAdjustment(time_point);
+    R_SUCCEED();
+}
+
+Result ServiceManager::GetClosestAlarmUpdatedEvent(Kernel::KEvent** out_event) {
+    *out_event = &m_alarms.GetEvent();
+    R_SUCCEED();
+}
+
+Result ServiceManager::CheckAndSignalAlarms() {
+    m_alarms.CheckAndSignal();
+    R_SUCCEED();
+}
+
+Result ServiceManager::GetClosestAlarmInfo(bool& out_is_valid, AlarmInfo& out_info, s64& out_time) {
+    Alarm* alarm{nullptr};
+    out_is_valid = m_alarms.GetClosestAlarm(&alarm);
+    if (out_is_valid) {
+        out_info = {
+            .alert_time = alarm->GetAlertTime(),
+            .priority = alarm->GetPriority(),
+        };
+        out_time = m_alarms.GetRawTime();
+    }
+    R_SUCCEED();
+}
+
+} // namespace Service::PSC::Time

src/core/hle/service/psc/time/service_manager.h

@@ -0,0 +1,101 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <list>
+#include <memory>
+
+#include "core/hle/service/ipc_helpers.h"
+#include "core/hle/service/psc/time/common.h"
+#include "core/hle/service/psc/time/manager.h"
+#include "core/hle/service/server_manager.h"
+#include "core/hle/service/service.h"
+
+namespace Core {
+class System;
+}
+
+namespace Kernel {
+class KReadableEvent;
+}
+
+namespace Service::PSC::Time {
+class StaticService;
+
+class ServiceManager final : public ServiceFramework<ServiceManager> {
+public:
+    explicit ServiceManager(Core::System& system, std::shared_ptr<TimeManager> time,
+                            ServerManager* server_manager);
+    ~ServiceManager() override = default;
+
+    Result GetStaticServiceAsUser(std::shared_ptr<StaticService>& out_service);
+    Result GetStaticServiceAsAdmin(std::shared_ptr<StaticService>& out_service);
+    Result GetStaticServiceAsRepair(std::shared_ptr<StaticService>& out_service);
+    Result GetStaticServiceAsServiceManager(std::shared_ptr<StaticService>& out_service);
+    Result SetupStandardSteadyClockCore(Common::UUID& clock_source_id, s64 rtc_offset,
+                                        s64 internal_offset, s64 test_offset,
+                                        bool is_rtc_reset_detected);
+    Result SetupStandardLocalSystemClockCore(SystemClockContext& context, s64 time);
+    Result SetupStandardNetworkSystemClockCore(SystemClockContext& context, s64 accuracy);
+    Result SetupStandardUserSystemClockCore(SteadyClockTimePoint& time_point,
+                                            bool automatic_correction);
+    Result SetupTimeZoneServiceCore(LocationName& name, SteadyClockTimePoint& time_point,
+                                    RuleVersion& rule_version, u32 location_count,
+                                    std::span<const u8> rule_buffer);
+    Result SetupEphemeralNetworkSystemClockCore();
+    Result GetStandardLocalClockOperationEvent(Kernel::KEvent** out_event);
+    Result GetStandardNetworkClockOperationEventForServiceManager(Kernel::KEvent** out_event);
+    Result GetEphemeralNetworkClockOperationEventForServiceManager(Kernel::KEvent** out_event);
+    Result GetStandardUserSystemClockAutomaticCorrectionUpdatedEvent(Kernel::KEvent** out_event);
+    Result SetStandardSteadyClockBaseTime(s64 base_time);
+    Result GetClosestAlarmUpdatedEvent(Kernel::KEvent** out_event);
+    Result CheckAndSignalAlarms();
+    Result GetClosestAlarmInfo(bool& out_is_valid, AlarmInfo& out_info, s64& out_time);
+
+private:
+    void CheckAndSetupServicesSAndP();
+    void SetupSAndP();
+    Result GetStaticService(std::shared_ptr<StaticService>& out_service,
+                            StaticServiceSetupInfo setup_info, const char* name);
+
+    void Handle_GetStaticServiceAsUser(HLERequestContext& ctx);
+    void Handle_GetStaticServiceAsAdmin(HLERequestContext& ctx);
+    void Handle_GetStaticServiceAsRepair(HLERequestContext& ctx);
+    void Handle_GetStaticServiceAsServiceManager(HLERequestContext& ctx);
+    void Handle_SetupStandardSteadyClockCore(HLERequestContext& ctx);
+    void Handle_SetupStandardLocalSystemClockCore(HLERequestContext& ctx);
+    void Handle_SetupStandardNetworkSystemClockCore(HLERequestContext& ctx);
+    void Handle_SetupStandardUserSystemClockCore(HLERequestContext& ctx);
+    void Handle_SetupTimeZoneServiceCore(HLERequestContext& ctx);
+    void Handle_SetupEphemeralNetworkSystemClockCore(HLERequestContext& ctx);
+    void Handle_GetStandardLocalClockOperationEvent(HLERequestContext& ctx);
+    void Handle_GetStandardNetworkClockOperationEventForServiceManager(HLERequestContext& ctx);
+    void Handle_GetEphemeralNetworkClockOperationEventForServiceManager(HLERequestContext& ctx);
+    void Handle_GetStandardUserSystemClockAutomaticCorrectionUpdatedEvent(HLERequestContext& ctx);
+    void Handle_SetStandardSteadyClockBaseTime(HLERequestContext& ctx);
+    void Handle_GetClosestAlarmUpdatedEvent(HLERequestContext& ctx);
+    void Handle_CheckAndSignalAlarms(HLERequestContext& ctx);
+    void Handle_GetClosestAlarmInfo(HLERequestContext& ctx);
+
+    Core::System& m_system;
+    std::shared_ptr<TimeManager> m_time;
+    ServerManager& m_server_manager;
+    bool m_is_s_and_p_setup{};
+    StandardLocalSystemClockCore& m_local_system_clock;
+    StandardUserSystemClockCore& m_user_system_clock;
+    StandardNetworkSystemClockCore& m_network_system_clock;
+    StandardSteadyClockCore& m_steady_clock;
+    TimeZone& m_time_zone;
+    EphemeralNetworkSystemClockCore& m_ephemeral_network_clock;
+    SharedMemory& m_shared_memory;
+    Alarms& m_alarms;
+    LocalSystemClockContextWriter& m_local_system_context_writer;
+    NetworkSystemClockContextWriter& m_network_system_context_writer;
+    EphemeralNetworkSystemClockContextWriter& m_ephemeral_system_context_writer;
+    OperationEvent m_local_operation;
+    OperationEvent m_network_operation;
+    OperationEvent m_ephemeral_operation;
+};
+
+} // namespace Service::PSC::Time

src/core/hle/service/psc/time/shared_memory.cpp

@@ -0,0 +1,84 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/core.h"
+#include "core/hle/kernel/k_shared_memory.h"
+#include "core/hle/service/psc/time/shared_memory.h"
+
+namespace Service::PSC::Time {
+namespace {
+template <typename T>
+constexpr inline T ReadFromLockFreeAtomicType(const LockFreeAtomicType<T>* p) {
+    while (true) {
+        // Get the counter.
+        auto counter = p->m_counter;
+
+        // Get the value.
+        auto value = p->m_value[counter % 2];
+
+        // Fence memory.
+        std::atomic_thread_fence(std::memory_order_acquire);
+
+        // Check that the counter matches.
+        if (counter == p->m_counter) {
+            return value;
+        }
+    }
+}
+
+template <typename T>
+constexpr inline void WriteToLockFreeAtomicType(LockFreeAtomicType<T>* p, const T& value) {
+    // Get the current counter.
+    auto counter = p->m_counter;
+
+    // Increment the counter.
+    ++counter;
+
+    // Store the updated value.
+    p->m_value[counter % 2] = value;
+
+    // Fence memory.
+    std::atomic_thread_fence(std::memory_order_release);
+
+    // Set the updated counter.
+    p->m_counter = counter;
+}
+} // namespace
+
+SharedMemory::SharedMemory(Core::System& system)
+    : m_system{system}, m_k_shared_memory{m_system.Kernel().GetTimeSharedMem()},
+      m_shared_memory_ptr{reinterpret_cast<SharedMemoryStruct*>(m_k_shared_memory.GetPointer())} {
+    std::memset(m_shared_memory_ptr, 0, sizeof(*m_shared_memory_ptr));
+}
+
+void SharedMemory::SetLocalSystemContext(SystemClockContext& context) {
+    WriteToLockFreeAtomicType(&m_shared_memory_ptr->local_system_clock_contexts, context);
+}
+
+void SharedMemory::SetNetworkSystemContext(SystemClockContext& context) {
+    WriteToLockFreeAtomicType(&m_shared_memory_ptr->network_system_clock_contexts, context);
+}
+
+void SharedMemory::SetSteadyClockTimePoint(ClockSourceId clock_source_id, s64 time_point) {
+    WriteToLockFreeAtomicType(&m_shared_memory_ptr->steady_time_points,
+                              {time_point, clock_source_id});
+}
+
+void SharedMemory::SetContinuousAdjustment(ContinuousAdjustmentTimePoint& time_point) {
+    WriteToLockFreeAtomicType(&m_shared_memory_ptr->continuous_adjustment_time_points, time_point);
+}
+
+void SharedMemory::SetAutomaticCorrection(bool automatic_correction) {
+    WriteToLockFreeAtomicType(&m_shared_memory_ptr->automatic_corrections, automatic_correction);
+}
+
+void SharedMemory::UpdateBaseTime(s64 time) {
+    SteadyClockTimePoint time_point{
+        ReadFromLockFreeAtomicType(&m_shared_memory_ptr->steady_time_points)};
+
+    time_point.time_point = time;
+
+    WriteToLockFreeAtomicType(&m_shared_memory_ptr->steady_time_points, time_point);
+}
+
+} // namespace Service::PSC::Time

src/core/hle/service/psc/time/shared_memory.h

@@ -0,0 +1,70 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <array>
+
+#include "common/common_types.h"
+#include "core/hle/service/psc/time/common.h"
+
+namespace Core {
+class System;
+}
+
+namespace Kernel {
+class KSharedMemory;
+}
+
+namespace Service::PSC::Time {
+
+template <typename T>
+struct LockFreeAtomicType {
+    u32 m_counter;
+    std::array<T, 2> m_value;
+};
+
+struct SharedMemoryStruct {
+    LockFreeAtomicType<SteadyClockTimePoint> steady_time_points;
+    LockFreeAtomicType<SystemClockContext> local_system_clock_contexts;
+    LockFreeAtomicType<SystemClockContext> network_system_clock_contexts;
+    LockFreeAtomicType<bool> automatic_corrections;
+    LockFreeAtomicType<ContinuousAdjustmentTimePoint> continuous_adjustment_time_points;
+    std::array<char, 0xEB8> pad0148;
+};
+static_assert(offsetof(SharedMemoryStruct, steady_time_points) == 0x0,
+              "steady_time_points are in the wrong place!");
+static_assert(offsetof(SharedMemoryStruct, local_system_clock_contexts) == 0x38,
+              "local_system_clock_contexts are in the wrong place!");
+static_assert(offsetof(SharedMemoryStruct, network_system_clock_contexts) == 0x80,
+              "network_system_clock_contexts are in the wrong place!");
+static_assert(offsetof(SharedMemoryStruct, automatic_corrections) == 0xC8,
+              "automatic_corrections are in the wrong place!");
+static_assert(offsetof(SharedMemoryStruct, continuous_adjustment_time_points) == 0xD0,
+              "continuous_adjustment_time_points are in the wrong place!");
+static_assert(sizeof(SharedMemoryStruct) == 0x1000,
+              "Time's SharedMemoryStruct has the wrong size!");
+static_assert(std::is_trivial_v<SharedMemoryStruct>);
+
+class SharedMemory {
+public:
+    explicit SharedMemory(Core::System& system);
+
+    Kernel::KSharedMemory& GetKSharedMemory() {
+        return m_k_shared_memory;
+    }
+
+    void SetLocalSystemContext(SystemClockContext& context);
+    void SetNetworkSystemContext(SystemClockContext& context);
+    void SetSteadyClockTimePoint(ClockSourceId clock_source_id, s64 time_diff);
+    void SetContinuousAdjustment(ContinuousAdjustmentTimePoint& time_point);
+    void SetAutomaticCorrection(bool automatic_correction);
+    void UpdateBaseTime(s64 time);
+
+private:
+    Core::System& m_system;
+    Kernel::KSharedMemory& m_k_shared_memory;
+    SharedMemoryStruct* m_shared_memory_ptr;
+};
+
+} // namespace Service::PSC::Time

src/core/hle/service/psc/time/static.cpp

@@ -0,0 +1,500 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/core.h"
+#include "core/core_timing.h"
+#include "core/hle/kernel/k_shared_memory.h"
+#include "core/hle/service/psc/time/clocks/ephemeral_network_system_clock_core.h"
+#include "core/hle/service/psc/time/clocks/standard_local_system_clock_core.h"
+#include "core/hle/service/psc/time/clocks/standard_network_system_clock_core.h"
+#include "core/hle/service/psc/time/clocks/standard_user_system_clock_core.h"
+#include "core/hle/service/psc/time/manager.h"
+#include "core/hle/service/psc/time/shared_memory.h"
+#include "core/hle/service/psc/time/static.h"
+#include "core/hle/service/psc/time/steady_clock.h"
+#include "core/hle/service/psc/time/system_clock.h"
+#include "core/hle/service/psc/time/time_zone.h"
+#include "core/hle/service/psc/time/time_zone_service.h"
+
+namespace Service::PSC::Time {
+namespace {
+constexpr Result GetTimeFromTimePointAndContext(s64* out_time, SteadyClockTimePoint& time_point,
+                                                SystemClockContext& context) {
+    R_UNLESS(out_time != nullptr, ResultInvalidArgument);
+    R_UNLESS(time_point.IdMatches(context.steady_time_point), ResultClockMismatch);
+
+    *out_time = context.offset + time_point.time_point;
+    R_SUCCEED();
+}
+} // namespace
+
+StaticService::StaticService(Core::System& system_, StaticServiceSetupInfo setup_info,
+                             std::shared_ptr<TimeManager> time, const char* name)
+    : ServiceFramework{system_, name}, m_system{system}, m_setup_info{setup_info}, m_time{time},
+      m_local_system_clock{m_time->m_standard_local_system_clock},
+      m_user_system_clock{m_time->m_standard_user_system_clock},
+      m_network_system_clock{m_time->m_standard_network_system_clock},
+      m_time_zone{m_time->m_time_zone},
+      m_ephemeral_network_clock{m_time->m_ephemeral_network_clock}, m_shared_memory{
+                                                                        m_time->m_shared_memory} {
+    // clang-format off
+        static const FunctionInfo functions[] = {
+            {0,   &StaticService::Handle_GetStandardUserSystemClock, "GetStandardUserSystemClock"},
+            {1,   &StaticService::Handle_GetStandardNetworkSystemClock, "GetStandardNetworkSystemClock"},
+            {2,   &StaticService::Handle_GetStandardSteadyClock, "GetStandardSteadyClock"},
+            {3,   &StaticService::Handle_GetTimeZoneService, "GetTimeZoneService"},
+            {4,   &StaticService::Handle_GetStandardLocalSystemClock, "GetStandardLocalSystemClock"},
+            {5,   &StaticService::Handle_GetEphemeralNetworkSystemClock, "GetEphemeralNetworkSystemClock"},
+            {20,  &StaticService::Handle_GetSharedMemoryNativeHandle, "GetSharedMemoryNativeHandle"},
+            {50,  &StaticService::Handle_SetStandardSteadyClockInternalOffset, "SetStandardSteadyClockInternalOffset"},
+            {51,  &StaticService::Handle_GetStandardSteadyClockRtcValue, "GetStandardSteadyClockRtcValue"},
+            {100, &StaticService::Handle_IsStandardUserSystemClockAutomaticCorrectionEnabled, "IsStandardUserSystemClockAutomaticCorrectionEnabled"},
+            {101, &StaticService::Handle_SetStandardUserSystemClockAutomaticCorrectionEnabled, "SetStandardUserSystemClockAutomaticCorrectionEnabled"},
+            {102, &StaticService::Handle_GetStandardUserSystemClockInitialYear, "GetStandardUserSystemClockInitialYear"},
+            {200, &StaticService::Handle_IsStandardNetworkSystemClockAccuracySufficient, "IsStandardNetworkSystemClockAccuracySufficient"},
+            {201, &StaticService::Handle_GetStandardUserSystemClockAutomaticCorrectionUpdatedTime, "GetStandardUserSystemClockAutomaticCorrectionUpdatedTime"},
+            {300, &StaticService::Handle_CalculateMonotonicSystemClockBaseTimePoint, "CalculateMonotonicSystemClockBaseTimePoint"},
+            {400, &StaticService::Handle_GetClockSnapshot, "GetClockSnapshot"},
+            {401, &StaticService::Handle_GetClockSnapshotFromSystemClockContext, "GetClockSnapshotFromSystemClockContext"},
+            {500, &StaticService::Handle_CalculateStandardUserSystemClockDifferenceByUser, "CalculateStandardUserSystemClockDifferenceByUser"},
+            {501, &StaticService::Handle_CalculateSpanBetween, "CalculateSpanBetween"},
+        };
+    // clang-format on
+
+    RegisterHandlers(functions);
+}
+
+Result StaticService::GetClockSnapshotImpl(ClockSnapshot& out_snapshot,
+                                           SystemClockContext& user_context,
+                                           SystemClockContext& network_context, TimeType type) {
+    out_snapshot.user_context = user_context;
+    out_snapshot.network_context = network_context;
+
+    R_TRY(
+        m_time->m_standard_steady_clock.GetCurrentTimePoint(out_snapshot.steady_clock_time_point));
+
+    out_snapshot.is_automatic_correction_enabled = m_user_system_clock.GetAutomaticCorrection();
+
+    R_TRY(m_time_zone.GetLocationName(out_snapshot.location_name));
+
+    R_TRY(GetTimeFromTimePointAndContext(
+        &out_snapshot.user_time, out_snapshot.steady_clock_time_point, out_snapshot.user_context));
+
+    R_TRY(m_time_zone.ToCalendarTimeWithMyRule(out_snapshot.user_calendar_time,
+                                               out_snapshot.user_calendar_additional_time,
+                                               out_snapshot.user_time));
+
+    if (GetTimeFromTimePointAndContext(&out_snapshot.network_time,
+                                       out_snapshot.steady_clock_time_point,
+                                       out_snapshot.network_context) != ResultSuccess) {
+        out_snapshot.network_time = 0;
+    }
+
+    R_TRY(m_time_zone.ToCalendarTimeWithMyRule(out_snapshot.network_calendar_time,
+                                               out_snapshot.network_calendar_additional_time,
+                                               out_snapshot.network_time));
+    out_snapshot.type = type;
+    out_snapshot.unk_CE = 0;
+    R_SUCCEED();
+}
+
+void StaticService::Handle_GetStandardUserSystemClock(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    std::shared_ptr<SystemClock> service{};
+    auto res = GetStandardUserSystemClock(service);
+
+    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    rb.Push(res);
+    rb.PushIpcInterface<SystemClock>(std::move(service));
+}
+
+void StaticService::Handle_GetStandardNetworkSystemClock(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    std::shared_ptr<SystemClock> service{};
+    auto res = GetStandardNetworkSystemClock(service);
+
+    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    rb.Push(res);
+    rb.PushIpcInterface<SystemClock>(std::move(service));
+}
+
+void StaticService::Handle_GetStandardSteadyClock(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    std::shared_ptr<SteadyClock> service{};
+    auto res = GetStandardSteadyClock(service);
+
+    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    rb.Push(res);
+    rb.PushIpcInterface(std::move(service));
+}
+
+void StaticService::Handle_GetTimeZoneService(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    std::shared_ptr<TimeZoneService> service{};
+    auto res = GetTimeZoneService(service);
+
+    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    rb.Push(res);
+    rb.PushIpcInterface(std::move(service));
+}
+
+void StaticService::Handle_GetStandardLocalSystemClock(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    std::shared_ptr<SystemClock> service{};
+    auto res = GetStandardLocalSystemClock(service);
+
+    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    rb.Push(res);
+    rb.PushIpcInterface<SystemClock>(std::move(service));
+}
+
+void StaticService::Handle_GetEphemeralNetworkSystemClock(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    std::shared_ptr<SystemClock> service{};
+    auto res = GetEphemeralNetworkSystemClock(service);
+
+    IPC::ResponseBuilder rb{ctx, 2, 0, 1};
+    rb.Push(res);
+    rb.PushIpcInterface<SystemClock>(std::move(service));
+}
+
+void StaticService::Handle_GetSharedMemoryNativeHandle(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    Kernel::KSharedMemory* shared_memory{};
+    auto res = GetSharedMemoryNativeHandle(&shared_memory);
+
+    IPC::ResponseBuilder rb{ctx, 2, 1};
+    rb.Push(res);
+    rb.PushCopyObjects(shared_memory);
+}
+
+void StaticService::Handle_SetStandardSteadyClockInternalOffset(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(m_setup_info.can_write_steady_clock ? ResultNotImplemented : ResultPermissionDenied);
+}
+
+void StaticService::Handle_GetStandardSteadyClockRtcValue(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ResultNotImplemented);
+}
+
+void StaticService::Handle_IsStandardUserSystemClockAutomaticCorrectionEnabled(
+    HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    bool is_enabled{};
+    auto res = IsStandardUserSystemClockAutomaticCorrectionEnabled(is_enabled);
+
+    IPC::ResponseBuilder rb{ctx, 3};
+    rb.Push(res);
+    rb.Push<bool>(is_enabled);
+}
+
+void StaticService::Handle_SetStandardUserSystemClockAutomaticCorrectionEnabled(
+    HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::RequestParser rp{ctx};
+    auto automatic_correction{rp.Pop<bool>()};
+
+    auto res = SetStandardUserSystemClockAutomaticCorrectionEnabled(automatic_correction);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(res);
+}
+
+void StaticService::Handle_GetStandardUserSystemClockInitialYear(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ResultNotImplemented);
+}
+
+void StaticService::Handle_IsStandardNetworkSystemClockAccuracySufficient(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    bool is_sufficient{};
+    auto res = IsStandardNetworkSystemClockAccuracySufficient(is_sufficient);
+
+    IPC::ResponseBuilder rb{ctx, 3};
+    rb.Push(res);
+    rb.Push<bool>(is_sufficient);
+}
+
+void StaticService::Handle_GetStandardUserSystemClockAutomaticCorrectionUpdatedTime(
+    HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    SteadyClockTimePoint time_point{};
+    auto res = GetStandardUserSystemClockAutomaticCorrectionUpdatedTime(time_point);
+
+    IPC::ResponseBuilder rb{ctx, 2 + sizeof(SteadyClockTimePoint) / sizeof(u32)};
+    rb.Push(res);
+    rb.PushRaw<SteadyClockTimePoint>(time_point);
+}
+
+void StaticService::Handle_CalculateMonotonicSystemClockBaseTimePoint(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::RequestParser rp{ctx};
+    auto context{rp.PopRaw<SystemClockContext>()};
+
+    s64 time{};
+    auto res = CalculateMonotonicSystemClockBaseTimePoint(time, context);
+
+    IPC::ResponseBuilder rb{ctx, 4};
+    rb.Push(res);
+    rb.Push<s64>(time);
+}
+
+void StaticService::Handle_GetClockSnapshot(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::RequestParser rp{ctx};
+    auto type{rp.PopEnum<TimeType>()};
+
+    ClockSnapshot snapshot{};
+    auto res = GetClockSnapshot(snapshot, type);
+
+    ctx.WriteBuffer(snapshot);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(res);
+}
+
+void StaticService::Handle_GetClockSnapshotFromSystemClockContext(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::RequestParser rp{ctx};
+    auto clock_type{rp.PopEnum<TimeType>()};
+    [[maybe_unused]] auto alignment{rp.Pop<u32>()};
+    auto user_context{rp.PopRaw<SystemClockContext>()};
+    auto network_context{rp.PopRaw<SystemClockContext>()};
+
+    ClockSnapshot snapshot{};
+    auto res =
+        GetClockSnapshotFromSystemClockContext(snapshot, user_context, network_context, clock_type);
+
+    ctx.WriteBuffer(snapshot);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(res);
+}
+
+void StaticService::Handle_CalculateStandardUserSystemClockDifferenceByUser(
+    HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    ClockSnapshot a{};
+    ClockSnapshot b{};
+
+    auto a_buffer{ctx.ReadBuffer(0)};
+    auto b_buffer{ctx.ReadBuffer(1)};
+
+    std::memcpy(&a, a_buffer.data(), sizeof(ClockSnapshot));
+    std::memcpy(&b, b_buffer.data(), sizeof(ClockSnapshot));
+
+    s64 difference{};
+    auto res = CalculateStandardUserSystemClockDifferenceByUser(difference, a, b);
+
+    IPC::ResponseBuilder rb{ctx, 4};
+    rb.Push(res);
+    rb.Push(difference);
+}
+
+void StaticService::Handle_CalculateSpanBetween(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    ClockSnapshot a{};
+    ClockSnapshot b{};
+
+    auto a_buffer{ctx.ReadBuffer(0)};
+    auto b_buffer{ctx.ReadBuffer(1)};
+
+    std::memcpy(&a, a_buffer.data(), sizeof(ClockSnapshot));
+    std::memcpy(&b, b_buffer.data(), sizeof(ClockSnapshot));
+
+    s64 time{};
+    auto res = CalculateSpanBetween(time, a, b);
+
+    IPC::ResponseBuilder rb{ctx, 4};
+    rb.Push(res);
+    rb.Push(time);
+}
+
+// =============================== Implementations ===========================
+
+Result StaticService::GetStandardUserSystemClock(std::shared_ptr<SystemClock>& out_service) {
+    out_service = std::make_shared<SystemClock>(m_system, m_user_system_clock,
+                                                m_setup_info.can_write_user_clock,
+                                                m_setup_info.can_write_uninitialized_clock);
+    R_SUCCEED();
+}
+
+Result StaticService::GetStandardNetworkSystemClock(std::shared_ptr<SystemClock>& out_service) {
+    out_service = std::make_shared<SystemClock>(m_system, m_network_system_clock,
+                                                m_setup_info.can_write_network_clock,
+                                                m_setup_info.can_write_uninitialized_clock);
+    R_SUCCEED();
+}
+
+Result StaticService::GetStandardSteadyClock(std::shared_ptr<SteadyClock>& out_service) {
+    out_service =
+        std::make_shared<SteadyClock>(m_system, m_time, m_setup_info.can_write_steady_clock,
+                                      m_setup_info.can_write_uninitialized_clock);
+    R_SUCCEED();
+}
+
+Result StaticService::GetTimeZoneService(std::shared_ptr<TimeZoneService>& out_service) {
+    out_service =
+        std::make_shared<TimeZoneService>(m_system, m_time->m_standard_steady_clock, m_time_zone,
+                                          m_setup_info.can_write_timezone_device_location);
+    R_SUCCEED();
+}
+
+Result StaticService::GetStandardLocalSystemClock(std::shared_ptr<SystemClock>& out_service) {
+    out_service = std::make_shared<SystemClock>(m_system, m_local_system_clock,
+                                                m_setup_info.can_write_local_clock,
+                                                m_setup_info.can_write_uninitialized_clock);
+    R_SUCCEED();
+}
+
+Result StaticService::GetEphemeralNetworkSystemClock(std::shared_ptr<SystemClock>& out_service) {
+    out_service = std::make_shared<SystemClock>(m_system, m_ephemeral_network_clock,
+                                                m_setup_info.can_write_network_clock,
+                                                m_setup_info.can_write_uninitialized_clock);
+    R_SUCCEED();
+}
+
+Result StaticService::GetSharedMemoryNativeHandle(Kernel::KSharedMemory** out_shared_memory) {
+    *out_shared_memory = &m_shared_memory.GetKSharedMemory();
+    R_SUCCEED();
+}
+
+Result StaticService::IsStandardUserSystemClockAutomaticCorrectionEnabled(bool& out_is_enabled) {
+    R_UNLESS(m_user_system_clock.IsInitialized(), ResultClockUninitialized);
+
+    out_is_enabled = m_user_system_clock.GetAutomaticCorrection();
+    R_SUCCEED();
+}
+
+Result StaticService::SetStandardUserSystemClockAutomaticCorrectionEnabled(
+    bool automatic_correction) {
+    R_UNLESS(m_user_system_clock.IsInitialized() && m_time->m_standard_steady_clock.IsInitialized(),
+             ResultClockUninitialized);
+    R_UNLESS(m_setup_info.can_write_user_clock, ResultPermissionDenied);
+
+    R_TRY(m_user_system_clock.SetAutomaticCorrection(automatic_correction));
+
+    m_shared_memory.SetAutomaticCorrection(automatic_correction);
+
+    SteadyClockTimePoint time_point{};
+    R_TRY(m_time->m_standard_steady_clock.GetCurrentTimePoint(time_point));
+
+    m_user_system_clock.SetTimePointAndSignal(time_point);
+    m_user_system_clock.GetEvent().Signal();
+    R_SUCCEED();
+}
+
+Result StaticService::IsStandardNetworkSystemClockAccuracySufficient(bool& out_is_sufficient) {
+    out_is_sufficient = m_network_system_clock.IsAccuracySufficient();
+    R_SUCCEED();
+}
+
+Result StaticService::GetStandardUserSystemClockAutomaticCorrectionUpdatedTime(
+    SteadyClockTimePoint& out_time_point) {
+    R_UNLESS(m_user_system_clock.IsInitialized(), ResultClockUninitialized);
+
+    m_user_system_clock.GetTimePoint(out_time_point);
+
+    R_SUCCEED();
+}
+
+Result StaticService::CalculateMonotonicSystemClockBaseTimePoint(s64& out_time,
+                                                                 SystemClockContext& context) {
+    R_UNLESS(m_time->m_standard_steady_clock.IsInitialized(), ResultClockUninitialized);
+
+    SteadyClockTimePoint time_point{};
+    R_TRY(m_time->m_standard_steady_clock.GetCurrentTimePoint(time_point));
+
+    R_UNLESS(time_point.IdMatches(context.steady_time_point), ResultClockMismatch);
+
+    auto one_second_ns{
+        std::chrono::duration_cast<std::chrono::nanoseconds>(std::chrono::seconds(1)).count()};
+    auto ticks{m_system.CoreTiming().GetClockTicks()};
+    auto current_time{ConvertToTimeSpan(ticks).count()};
+    out_time = ((context.offset + time_point.time_point) - (current_time / one_second_ns));
+    R_SUCCEED();
+}
+
+Result StaticService::GetClockSnapshot(ClockSnapshot& out_snapshot, TimeType type) {
+    SystemClockContext user_context{};
+    R_TRY(m_user_system_clock.GetContext(user_context));
+
+    SystemClockContext network_context{};
+    R_TRY(m_network_system_clock.GetContext(network_context));
+
+    R_RETURN(GetClockSnapshotImpl(out_snapshot, user_context, network_context, type));
+}
+
+Result StaticService::GetClockSnapshotFromSystemClockContext(ClockSnapshot& out_snapshot,
+                                                             SystemClockContext& user_context,
+                                                             SystemClockContext& network_context,
+                                                             TimeType type) {
+    R_RETURN(GetClockSnapshotImpl(out_snapshot, user_context, network_context, type));
+}
+
+Result StaticService::CalculateStandardUserSystemClockDifferenceByUser(s64& out_time,
+                                                                       ClockSnapshot& a,
+                                                                       ClockSnapshot& b) {
+    auto diff_s =
+        std::chrono::seconds(b.user_context.offset) - std::chrono::seconds(a.user_context.offset);
+
+    if (a.user_context == b.user_context ||
+        !a.user_context.steady_time_point.IdMatches(b.user_context.steady_time_point)) {
+        out_time = 0;
+        R_SUCCEED();
+    }
+
+    if (!a.is_automatic_correction_enabled || !b.is_automatic_correction_enabled) {
+        out_time = std::chrono::duration_cast<std::chrono::nanoseconds>(diff_s).count();
+        R_SUCCEED();
+    }
+
+    if (a.network_context.steady_time_point.IdMatches(a.steady_clock_time_point) ||
+        b.network_context.steady_time_point.IdMatches(b.steady_clock_time_point)) {
+        out_time = 0;
+        R_SUCCEED();
+    }
+
+    out_time = std::chrono::duration_cast<std::chrono::nanoseconds>(diff_s).count();
+    R_SUCCEED();
+}
+
+Result StaticService::CalculateSpanBetween(s64& out_time, ClockSnapshot& a, ClockSnapshot& b) {
+    s64 time_s{};
+    auto res =
+        GetSpanBetweenTimePoints(&time_s, a.steady_clock_time_point, b.steady_clock_time_point);
+
+    if (res != ResultSuccess) {
+        R_UNLESS(a.network_time != 0 && b.network_time != 0, ResultTimeNotFound);
+        time_s = b.network_time - a.network_time;
+    }
+
+    out_time =
+        std::chrono::duration_cast<std::chrono::nanoseconds>(std::chrono::seconds(time_s)).count();
+    R_SUCCEED();
+}
+
+} // namespace Service::PSC::Time

src/core/hle/service/psc/time/static.h

@@ -0,0 +1,95 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "core/hle/service/ipc_helpers.h"
+#include "core/hle/service/psc/time/common.h"
+#include "core/hle/service/server_manager.h"
+#include "core/hle/service/service.h"
+
+namespace Core {
+class System;
+}
+
+namespace Kernel {
+class KSharedMemory;
+}
+
+namespace Service::PSC::Time {
+class TimeManager;
+class StandardLocalSystemClockCore;
+class StandardUserSystemClockCore;
+class StandardNetworkSystemClockCore;
+class TimeZone;
+class SystemClock;
+class SteadyClock;
+class TimeZoneService;
+class EphemeralNetworkSystemClockCore;
+class SharedMemory;
+
+class StaticService final : public ServiceFramework<StaticService> {
+public:
+    explicit StaticService(Core::System& system, StaticServiceSetupInfo setup_info,
+                           std::shared_ptr<TimeManager> time, const char* name);
+
+    ~StaticService() override = default;
+
+    Result GetStandardUserSystemClock(std::shared_ptr<SystemClock>& out_service);
+    Result GetStandardNetworkSystemClock(std::shared_ptr<SystemClock>& out_service);
+    Result GetStandardSteadyClock(std::shared_ptr<SteadyClock>& out_service);
+    Result GetTimeZoneService(std::shared_ptr<TimeZoneService>& out_service);
+    Result GetStandardLocalSystemClock(std::shared_ptr<SystemClock>& out_service);
+    Result GetEphemeralNetworkSystemClock(std::shared_ptr<SystemClock>& out_service);
+    Result GetSharedMemoryNativeHandle(Kernel::KSharedMemory** out_shared_memory);
+    Result IsStandardUserSystemClockAutomaticCorrectionEnabled(bool& out_is_enabled);
+    Result SetStandardUserSystemClockAutomaticCorrectionEnabled(bool automatic_correction);
+    Result IsStandardNetworkSystemClockAccuracySufficient(bool& out_is_sufficient);
+    Result GetStandardUserSystemClockAutomaticCorrectionUpdatedTime(
+        SteadyClockTimePoint& out_time_point);
+    Result CalculateMonotonicSystemClockBaseTimePoint(s64& out_time, SystemClockContext& context);
+    Result GetClockSnapshot(ClockSnapshot& out_snapshot, TimeType type);
+    Result GetClockSnapshotFromSystemClockContext(ClockSnapshot& out_snapshot,
+                                                  SystemClockContext& user_context,
+                                                  SystemClockContext& network_context,
+                                                  TimeType type);
+    Result CalculateStandardUserSystemClockDifferenceByUser(s64& out_time, ClockSnapshot& a,
+                                                            ClockSnapshot& b);
+    Result CalculateSpanBetween(s64& out_time, ClockSnapshot& a, ClockSnapshot& b);
+
+private:
+    Result GetClockSnapshotImpl(ClockSnapshot& out_snapshot, SystemClockContext& user_context,
+                                SystemClockContext& network_context, TimeType type);
+
+    void Handle_GetStandardUserSystemClock(HLERequestContext& ctx);
+    void Handle_GetStandardNetworkSystemClock(HLERequestContext& ctx);
+    void Handle_GetStandardSteadyClock(HLERequestContext& ctx);
+    void Handle_GetTimeZoneService(HLERequestContext& ctx);
+    void Handle_GetStandardLocalSystemClock(HLERequestContext& ctx);
+    void Handle_GetEphemeralNetworkSystemClock(HLERequestContext& ctx);
+    void Handle_GetSharedMemoryNativeHandle(HLERequestContext& ctx);
+    void Handle_SetStandardSteadyClockInternalOffset(HLERequestContext& ctx);
+    void Handle_GetStandardSteadyClockRtcValue(HLERequestContext& ctx);
+    void Handle_IsStandardUserSystemClockAutomaticCorrectionEnabled(HLERequestContext& ctx);
+    void Handle_SetStandardUserSystemClockAutomaticCorrectionEnabled(HLERequestContext& ctx);
+    void Handle_GetStandardUserSystemClockInitialYear(HLERequestContext& ctx);
+    void Handle_IsStandardNetworkSystemClockAccuracySufficient(HLERequestContext& ctx);
+    void Handle_GetStandardUserSystemClockAutomaticCorrectionUpdatedTime(HLERequestContext& ctx);
+    void Handle_CalculateMonotonicSystemClockBaseTimePoint(HLERequestContext& ctx);
+    void Handle_GetClockSnapshot(HLERequestContext& ctx);
+    void Handle_GetClockSnapshotFromSystemClockContext(HLERequestContext& ctx);
+    void Handle_CalculateStandardUserSystemClockDifferenceByUser(HLERequestContext& ctx);
+    void Handle_CalculateSpanBetween(HLERequestContext& ctx);
+
+    Core::System& m_system;
+    StaticServiceSetupInfo m_setup_info;
+    std::shared_ptr<TimeManager> m_time;
+    StandardLocalSystemClockCore& m_local_system_clock;
+    StandardUserSystemClockCore& m_user_system_clock;
+    StandardNetworkSystemClockCore& m_network_system_clock;
+    TimeZone& m_time_zone;
+    EphemeralNetworkSystemClockCore& m_ephemeral_network_clock;
+    SharedMemory& m_shared_memory;
+};
+
+} // namespace Service::PSC::Time

src/core/hle/service/psc/time/steady_clock.cpp

@@ -0,0 +1,164 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/core.h"
+#include "core/hle/service/psc/time/steady_clock.h"
+
+namespace Service::PSC::Time {
+
+SteadyClock::SteadyClock(Core::System& system_, std::shared_ptr<TimeManager> manager,
+                         bool can_write_steady_clock, bool can_write_uninitialized_clock)
+    : ServiceFramework{system_, "ISteadyClock"}, m_system{system},
+      m_clock_core{manager->m_standard_steady_clock},
+      m_can_write_steady_clock{can_write_steady_clock}, m_can_write_uninitialized_clock{
+                                                            can_write_uninitialized_clock} {
+    // clang-format off
+         static const FunctionInfo functions[] = {
+        {0, &SteadyClock::Handle_GetCurrentTimePoint, "GetCurrentTimePoint"},
+        {2, &SteadyClock::Handle_GetTestOffset, "GetTestOffset"},
+        {3, &SteadyClock::Handle_SetTestOffset, "SetTestOffset"},
+        {100, &SteadyClock::Handle_GetRtcValue, "GetRtcValue"},
+        {101, &SteadyClock::Handle_IsRtcResetDetected, "IsRtcResetDetected"},
+        {102, &SteadyClock::Handle_GetSetupResultValue, "GetSetupResultValue"},
+        {200, &SteadyClock::Handle_GetInternalOffset, "GetInternalOffset"},
+    };
+    // clang-format on
+    RegisterHandlers(functions);
+}
+
+void SteadyClock::Handle_GetCurrentTimePoint(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    SteadyClockTimePoint time_point{};
+    auto res = GetCurrentTimePoint(time_point);
+
+    IPC::ResponseBuilder rb{ctx, 2 + sizeof(SteadyClockTimePoint) / sizeof(u32)};
+    rb.Push(res);
+    rb.PushRaw<SteadyClockTimePoint>(time_point);
+}
+
+void SteadyClock::Handle_GetTestOffset(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    s64 test_offset{};
+    auto res = GetTestOffset(test_offset);
+
+    IPC::ResponseBuilder rb{ctx, 4};
+    rb.Push(res);
+    rb.Push(test_offset);
+}
+
+void SteadyClock::Handle_SetTestOffset(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::RequestParser rp{ctx};
+    auto test_offset{rp.Pop<s64>()};
+
+    auto res = SetTestOffset(test_offset);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(res);
+}
+
+void SteadyClock::Handle_GetRtcValue(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    s64 rtc_value{};
+    auto res = GetRtcValue(rtc_value);
+
+    IPC::ResponseBuilder rb{ctx, 4};
+    rb.Push(res);
+    rb.Push(rtc_value);
+}
+
+void SteadyClock::Handle_IsRtcResetDetected(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    bool reset_detected{false};
+    auto res = IsRtcResetDetected(reset_detected);
+
+    IPC::ResponseBuilder rb{ctx, 3};
+    rb.Push(res);
+    rb.Push(reset_detected);
+}
+
+void SteadyClock::Handle_GetSetupResultValue(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    Result result_value{ResultSuccess};
+    auto res = GetSetupResultValue(result_value);
+
+    IPC::ResponseBuilder rb{ctx, 3};
+    rb.Push(res);
+    rb.Push(result_value);
+}
+
+void SteadyClock::Handle_GetInternalOffset(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    s64 internal_offset{};
+    auto res = GetInternalOffset(internal_offset);
+
+    IPC::ResponseBuilder rb{ctx, 4};
+    rb.Push(res);
+    rb.Push(internal_offset);
+}
+
+// =============================== Implementations ===========================
+
+Result SteadyClock::GetCurrentTimePoint(SteadyClockTimePoint& out_time_point) {
+    R_UNLESS(m_can_write_uninitialized_clock || m_clock_core.IsInitialized(),
+             ResultClockUninitialized);
+
+    R_RETURN(m_clock_core.GetCurrentTimePoint(out_time_point));
+}
+
+Result SteadyClock::GetTestOffset(s64& out_test_offset) {
+    R_UNLESS(m_can_write_uninitialized_clock || m_clock_core.IsInitialized(),
+             ResultClockUninitialized);
+
+    out_test_offset = m_clock_core.GetTestOffset();
+    R_SUCCEED();
+}
+
+Result SteadyClock::SetTestOffset(s64 test_offset) {
+    R_UNLESS(m_can_write_steady_clock, ResultPermissionDenied);
+    R_UNLESS(m_can_write_uninitialized_clock || m_clock_core.IsInitialized(),
+             ResultClockUninitialized);
+
+    m_clock_core.SetTestOffset(test_offset);
+    R_SUCCEED();
+}
+
+Result SteadyClock::GetRtcValue(s64& out_rtc_value) {
+    R_UNLESS(m_can_write_uninitialized_clock || m_clock_core.IsInitialized(),
+             ResultClockUninitialized);
+
+    R_RETURN(m_clock_core.GetRtcValue(out_rtc_value));
+}
+
+Result SteadyClock::IsRtcResetDetected(bool& out_is_detected) {
+    R_UNLESS(m_can_write_uninitialized_clock || m_clock_core.IsInitialized(),
+             ResultClockUninitialized);
+
+    out_is_detected = m_clock_core.IsResetDetected();
+    R_SUCCEED();
+}
+
+Result SteadyClock::GetSetupResultValue(Result& out_result) {
+    R_UNLESS(m_can_write_uninitialized_clock || m_clock_core.IsInitialized(),
+             ResultClockUninitialized);
+
+    out_result = m_clock_core.GetSetupResultValue();
+    R_SUCCEED();
+}
+
+Result SteadyClock::GetInternalOffset(s64& out_internal_offset) {
+    R_UNLESS(m_can_write_uninitialized_clock || m_clock_core.IsInitialized(),
+             ResultClockUninitialized);
+
+    out_internal_offset = m_clock_core.GetInternalOffset();
+    R_SUCCEED();
+}
+
+} // namespace Service::PSC::Time

src/core/hle/service/psc/time/steady_clock.h

@@ -0,0 +1,49 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "core/hle/service/ipc_helpers.h"
+#include "core/hle/service/psc/time/common.h"
+#include "core/hle/service/psc/time/manager.h"
+#include "core/hle/service/server_manager.h"
+#include "core/hle/service/service.h"
+
+namespace Core {
+class System;
+}
+
+namespace Service::PSC::Time {
+
+class SteadyClock final : public ServiceFramework<SteadyClock> {
+public:
+    explicit SteadyClock(Core::System& system, std::shared_ptr<TimeManager> manager,
+                         bool can_write_steady_clock, bool can_write_uninitialized_clock);
+
+    ~SteadyClock() override = default;
+
+    Result GetCurrentTimePoint(SteadyClockTimePoint& out_time_point);
+    Result GetTestOffset(s64& out_test_offset);
+    Result SetTestOffset(s64 test_offset);
+    Result GetRtcValue(s64& out_rtc_value);
+    Result IsRtcResetDetected(bool& out_is_detected);
+    Result GetSetupResultValue(Result& out_result);
+    Result GetInternalOffset(s64& out_internal_offset);
+
+private:
+    void Handle_GetCurrentTimePoint(HLERequestContext& ctx);
+    void Handle_GetTestOffset(HLERequestContext& ctx);
+    void Handle_SetTestOffset(HLERequestContext& ctx);
+    void Handle_GetRtcValue(HLERequestContext& ctx);
+    void Handle_IsRtcResetDetected(HLERequestContext& ctx);
+    void Handle_GetSetupResultValue(HLERequestContext& ctx);
+    void Handle_GetInternalOffset(HLERequestContext& ctx);
+
+    Core::System& m_system;
+
+    StandardSteadyClockCore& m_clock_core;
+    bool m_can_write_steady_clock;
+    bool m_can_write_uninitialized_clock;
+};
+
+} // namespace Service::PSC::Time

src/core/hle/service/psc/time/system_clock.cpp

@@ -0,0 +1,127 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/core.h"
+#include "core/hle/service/psc/time/system_clock.h"
+
+namespace Service::PSC::Time {
+
+SystemClock::SystemClock(Core::System& system_, SystemClockCore& clock_core, bool can_write_clock,
+                         bool can_write_uninitialized_clock)
+    : ServiceFramework{system_, "ISystemClock"}, m_system{system}, m_clock_core{clock_core},
+      m_can_write_clock{can_write_clock}, m_can_write_uninitialized_clock{
+                                              can_write_uninitialized_clock} {
+    // clang-format off
+    static const FunctionInfo functions[] = {
+        {0, &SystemClock::Handle_GetCurrentTime, "GetCurrentTime"},
+        {1, &SystemClock::Handle_SetCurrentTime, "SetCurrentTime"},
+        {2, &SystemClock::Handle_GetSystemClockContext, "GetSystemClockContext"},
+        {3, &SystemClock::Handle_SetSystemClockContext, "SetSystemClockContext"},
+        {4, &SystemClock::Handle_GetOperationEventReadableHandle, "GetOperationEventReadableHandle"},
+    };
+    // clang-format on
+    RegisterHandlers(functions);
+}
+
+void SystemClock::Handle_GetCurrentTime(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    s64 time{};
+    auto res = GetCurrentTime(time);
+
+    IPC::ResponseBuilder rb{ctx, 4};
+    rb.Push(res);
+    rb.Push<s64>(time);
+}
+
+void SystemClock::Handle_SetCurrentTime(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::RequestParser rp{ctx};
+    auto time{rp.Pop<s64>()};
+
+    auto res = SetCurrentTime(time);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(res);
+}
+
+void SystemClock::Handle_GetSystemClockContext(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    SystemClockContext context{};
+    auto res = GetSystemClockContext(context);
+
+    IPC::ResponseBuilder rb{ctx, 2 + sizeof(SystemClockContext) / sizeof(u32)};
+    rb.Push(res);
+    rb.PushRaw<SystemClockContext>(context);
+}
+
+void SystemClock::Handle_SetSystemClockContext(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::RequestParser rp{ctx};
+    auto context{rp.PopRaw<SystemClockContext>()};
+
+    auto res = SetSystemClockContext(context);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(res);
+}
+
+void SystemClock::Handle_GetOperationEventReadableHandle(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    Kernel::KEvent* event{};
+    auto res = GetOperationEventReadableHandle(&event);
+
+    IPC::ResponseBuilder rb{ctx, 2, 1};
+    rb.Push(res);
+    rb.PushCopyObjects(event->GetReadableEvent());
+}
+
+// =============================== Implementations ===========================
+
+Result SystemClock::GetCurrentTime(s64& out_time) {
+    R_UNLESS(m_can_write_uninitialized_clock || m_clock_core.IsInitialized(),
+             ResultClockUninitialized);
+
+    R_RETURN(m_clock_core.GetCurrentTime(&out_time));
+}
+
+Result SystemClock::SetCurrentTime(s64 time) {
+    R_UNLESS(m_can_write_clock, ResultPermissionDenied);
+    R_UNLESS(m_can_write_uninitialized_clock || m_clock_core.IsInitialized(),
+             ResultClockUninitialized);
+
+    R_RETURN(m_clock_core.SetCurrentTime(time));
+}
+
+Result SystemClock::GetSystemClockContext(SystemClockContext& out_context) {
+    R_UNLESS(m_can_write_uninitialized_clock || m_clock_core.IsInitialized(),
+             ResultClockUninitialized);
+
+    R_RETURN(m_clock_core.GetContext(out_context));
+}
+
+Result SystemClock::SetSystemClockContext(SystemClockContext& context) {
+    R_UNLESS(m_can_write_clock, ResultPermissionDenied);
+    R_UNLESS(m_can_write_uninitialized_clock || m_clock_core.IsInitialized(),
+             ResultClockUninitialized);
+
+    R_RETURN(m_clock_core.SetContextAndWrite(context));
+}
+
+Result SystemClock::GetOperationEventReadableHandle(Kernel::KEvent** out_event) {
+    if (!m_operation_event) {
+        m_operation_event = std::make_unique<OperationEvent>(m_system);
+        R_UNLESS(m_operation_event != nullptr, ResultFailed);
+
+        m_clock_core.LinkOperationEvent(*m_operation_event);
+    }
+
+    *out_event = m_operation_event->m_event;
+    R_SUCCEED();
+}
+
+} // namespace Service::PSC::Time

src/core/hle/service/psc/time/system_clock.h

@@ -0,0 +1,46 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "core/hle/service/ipc_helpers.h"
+#include "core/hle/service/psc/time/common.h"
+#include "core/hle/service/psc/time/manager.h"
+#include "core/hle/service/server_manager.h"
+#include "core/hle/service/service.h"
+
+namespace Core {
+class System;
+}
+
+namespace Service::PSC::Time {
+
+class SystemClock final : public ServiceFramework<SystemClock> {
+public:
+    explicit SystemClock(Core::System& system, SystemClockCore& system_clock_core,
+                         bool can_write_clock, bool can_write_uninitialized_clock);
+
+    ~SystemClock() override = default;
+
+    Result GetCurrentTime(s64& out_time);
+    Result SetCurrentTime(s64 time);
+    Result GetSystemClockContext(SystemClockContext& out_context);
+    Result SetSystemClockContext(SystemClockContext& context);
+    Result GetOperationEventReadableHandle(Kernel::KEvent** out_event);
+
+private:
+    void Handle_GetCurrentTime(HLERequestContext& ctx);
+    void Handle_SetCurrentTime(HLERequestContext& ctx);
+    void Handle_GetSystemClockContext(HLERequestContext& ctx);
+    void Handle_SetSystemClockContext(HLERequestContext& ctx);
+    void Handle_GetOperationEventReadableHandle(HLERequestContext& ctx);
+
+    Core::System& m_system;
+
+    SystemClockCore& m_clock_core;
+    bool m_can_write_clock;
+    bool m_can_write_uninitialized_clock;
+    std::unique_ptr<OperationEvent> m_operation_event{};
+};
+
+} // namespace Service::PSC::Time

src/core/hle/service/psc/time/time_zone.cpp

@@ -0,0 +1,280 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "core/hle/service/psc/time/time_zone.h"
+
+namespace Service::PSC::Time {
+namespace {
+constexpr Result ValidateRule(Tz::Rule& rule) {
+    if (rule.typecnt > static_cast<s32>(Tz::TZ_MAX_TYPES) ||
+        rule.timecnt > static_cast<s32>(Tz::TZ_MAX_TIMES) ||
+        rule.charcnt > static_cast<s32>(Tz::TZ_MAX_CHARS)) {
+        R_RETURN(ResultTimeZoneOutOfRange);
+    }
+
+    for (s32 i = 0; i < rule.timecnt; i++) {
+        if (rule.types[i] >= rule.typecnt) {
+            R_RETURN(ResultTimeZoneOutOfRange);
+        }
+    }
+
+    for (s32 i = 0; i < rule.typecnt; i++) {
+        if (rule.ttis[i].tt_desigidx >= static_cast<s32>(rule.chars.size())) {
+            R_RETURN(ResultTimeZoneOutOfRange);
+        }
+    }
+    R_SUCCEED();
+}
+
+constexpr bool GetTimeZoneTime(s64& out_time, Tz::Rule& rule, s64 time, s32 index,
+                               s32 index_offset) {
+    s32 found_idx{};
+    s32 expected_index{index + index_offset};
+    s64 time_to_find{time + rule.ttis[rule.types[index]].tt_utoff -
+                     rule.ttis[rule.types[expected_index]].tt_utoff};
+
+    if (rule.timecnt > 1 && rule.ats[0] <= time_to_find) {
+        s32 low{1};
+        s32 high{rule.timecnt};
+
+        while (low < high) {
+            auto mid{(low + high) / 2};
+            if (rule.ats[mid] <= time_to_find) {
+                low = mid + 1;
+            } else if (rule.ats[mid] > time_to_find) {
+                high = mid;
+            }
+        }
+        found_idx = low - 1;
+    }
+
+    if (found_idx == expected_index) {
+        out_time = time_to_find;
+    }
+    return found_idx == expected_index;
+}
+} // namespace
+
+void TimeZone::SetTimePoint(SteadyClockTimePoint& time_point) {
+    std::scoped_lock l{m_mutex};
+    m_steady_clock_time_point = time_point;
+}
+
+void TimeZone::SetTotalLocationNameCount(u32 count) {
+    std::scoped_lock l{m_mutex};
+    m_total_location_name_count = count;
+}
+
+void TimeZone::SetRuleVersion(RuleVersion& rule_version) {
+    std::scoped_lock l{m_mutex};
+    m_rule_version = rule_version;
+}
+
+Result TimeZone::GetLocationName(LocationName& out_name) {
+    std::scoped_lock l{m_mutex};
+    R_UNLESS(m_initialized, ResultClockUninitialized);
+    out_name = m_location;
+    R_SUCCEED();
+}
+
+Result TimeZone::GetTotalLocationCount(u32& out_count) {
+    std::scoped_lock l{m_mutex};
+    if (!m_initialized) {
+        return ResultClockUninitialized;
+    }
+
+    out_count = m_total_location_name_count;
+    R_SUCCEED();
+}
+
+Result TimeZone::GetRuleVersion(RuleVersion& out_rule_version) {
+    std::scoped_lock l{m_mutex};
+    if (!m_initialized) {
+        return ResultClockUninitialized;
+    }
+    out_rule_version = m_rule_version;
+    R_SUCCEED();
+}
+
+Result TimeZone::GetTimePoint(SteadyClockTimePoint& out_time_point) {
+    std::scoped_lock l{m_mutex};
+    if (!m_initialized) {
+        return ResultClockUninitialized;
+    }
+    out_time_point = m_steady_clock_time_point;
+    R_SUCCEED();
+}
+
+Result TimeZone::ToCalendarTime(CalendarTime& out_calendar_time,
+                                CalendarAdditionalInfo& out_additional_info, s64 time,
+                                Tz::Rule& rule) {
+    std::scoped_lock l{m_mutex};
+    R_RETURN(ToCalendarTimeImpl(out_calendar_time, out_additional_info, time, rule));
+}
+
+Result TimeZone::ToCalendarTimeWithMyRule(CalendarTime& calendar_time,
+                                          CalendarAdditionalInfo& calendar_additional, s64 time) {
+    // This is checked outside the mutex. Bug?
+    if (!m_initialized) {
+        return ResultClockUninitialized;
+    }
+
+    std::scoped_lock l{m_mutex};
+    R_RETURN(ToCalendarTimeImpl(calendar_time, calendar_additional, time, m_my_rule));
+}
+
+Result TimeZone::ParseBinary(LocationName& name, std::span<const u8> binary) {
+    std::scoped_lock l{m_mutex};
+
+    Tz::Rule tmp_rule{};
+    R_TRY(ParseBinaryImpl(tmp_rule, binary));
+
+    m_my_rule = tmp_rule;
+    m_location = name;
+
+    R_SUCCEED();
+}
+
+Result TimeZone::ParseBinaryInto(Tz::Rule& out_rule, std::span<const u8> binary) {
+    std::scoped_lock l{m_mutex};
+    R_RETURN(ParseBinaryImpl(out_rule, binary));
+}
+
+Result TimeZone::ToPosixTime(u32& out_count, std::span<s64, 2> out_times, u32 out_times_count,
+                             CalendarTime& calendar, Tz::Rule& rule) {
+    std::scoped_lock l{m_mutex};
+
+    auto res = ToPosixTimeImpl(out_count, out_times, out_times_count, calendar, rule, -1);
+
+    if (res != ResultSuccess) {
+        if (res == ResultTimeZoneNotFound) {
+            res = ResultSuccess;
+            out_count = 0;
+        }
+    } else if (out_count == 2 && out_times[0] > out_times[1]) {
+        std::swap(out_times[0], out_times[1]);
+    }
+    R_RETURN(res);
+}
+
+Result TimeZone::ToPosixTimeWithMyRule(u32& out_count, std::span<s64, 2> out_times,
+                                       u32 out_times_count, CalendarTime& calendar) {
+    std::scoped_lock l{m_mutex};
+
+    auto res = ToPosixTimeImpl(out_count, out_times, out_times_count, calendar, m_my_rule, -1);
+
+    if (res != ResultSuccess) {
+        if (res == ResultTimeZoneNotFound) {
+            res = ResultSuccess;
+            out_count = 0;
+        }
+    } else if (out_count == 2 && out_times[0] > out_times[1]) {
+        std::swap(out_times[0], out_times[1]);
+    }
+    R_RETURN(res);
+}
+
+Result TimeZone::ParseBinaryImpl(Tz::Rule& out_rule, std::span<const u8> binary) {
+    if (Tz::ParseTimeZoneBinary(out_rule, binary)) {
+        R_RETURN(ResultTimeZoneParseFailed);
+    }
+    R_SUCCEED();
+}
+
+Result TimeZone::ToCalendarTimeImpl(CalendarTime& out_calendar_time,
+                                    CalendarAdditionalInfo& out_additional_info, s64 time,
+                                    Tz::Rule& rule) {
+    R_TRY(ValidateRule(rule));
+
+    Tz::CalendarTimeInternal calendar_internal{};
+    time_t time_tmp{static_cast<time_t>(time)};
+    if (Tz::localtime_rz(&calendar_internal, &rule, &time_tmp)) {
+        R_RETURN(ResultOverflow);
+    }
+
+    out_calendar_time.year = static_cast<s16>(calendar_internal.tm_year + 1900);
+    out_calendar_time.month = static_cast<s8>(calendar_internal.tm_mon + 1);
+    out_calendar_time.day = static_cast<s8>(calendar_internal.tm_mday);
+    out_calendar_time.hour = static_cast<s8>(calendar_internal.tm_hour);
+    out_calendar_time.minute = static_cast<s8>(calendar_internal.tm_min);
+    out_calendar_time.second = static_cast<s8>(calendar_internal.tm_sec);
+
+    out_additional_info.day_of_week = calendar_internal.tm_wday;
+    out_additional_info.day_of_year = calendar_internal.tm_yday;
+
+    std::memcpy(out_additional_info.name.data(), calendar_internal.tm_zone.data(),
+                out_additional_info.name.size());
+    out_additional_info.name[out_additional_info.name.size() - 1] = '\0';
+
+    out_additional_info.is_dst = calendar_internal.tm_isdst;
+    out_additional_info.ut_offset = calendar_internal.tm_utoff;
+
+    R_SUCCEED();
+}
+
+Result TimeZone::ToPosixTimeImpl(u32& out_count, std::span<s64, 2> out_times, u32 out_times_count,
+                                 CalendarTime& calendar, Tz::Rule& rule, s32 is_dst) {
+    R_TRY(ValidateRule(rule));
+
+    calendar.month -= 1;
+    calendar.year -= 1900;
+
+    Tz::CalendarTimeInternal internal{
+        .tm_sec = calendar.second,
+        .tm_min = calendar.minute,
+        .tm_hour = calendar.hour,
+        .tm_mday = calendar.day,
+        .tm_mon = calendar.month,
+        .tm_year = calendar.year,
+        .tm_wday = 0,
+        .tm_yday = 0,
+        .tm_isdst = is_dst,
+        .tm_zone = {},
+        .tm_utoff = 0,
+        .time_index = 0,
+    };
+    time_t time_tmp{};
+    auto res = Tz::mktime_tzname(&time_tmp, &rule, &internal);
+    s64 time = static_cast<s64>(time_tmp);
+
+    if (res == 1) {
+        R_RETURN(ResultOverflow);
+    } else if (res == 2) {
+        R_RETURN(ResultTimeZoneNotFound);
+    }
+
+    if (internal.tm_sec != calendar.second || internal.tm_min != calendar.minute ||
+        internal.tm_hour != calendar.hour || internal.tm_mday != calendar.day ||
+        internal.tm_mon != calendar.month || internal.tm_year != calendar.year) {
+        R_RETURN(ResultTimeZoneNotFound);
+    }
+
+    if (res != 0) {
+        ASSERT(false);
+    }
+
+    out_times[0] = time;
+    if (out_times_count < 2) {
+        out_count = 1;
+        R_SUCCEED();
+    }
+
+    s64 time2{};
+    if (internal.time_index > 0 && GetTimeZoneTime(time2, rule, time, internal.time_index, -1)) {
+        out_times[1] = time2;
+        out_count = 2;
+        R_SUCCEED();
+    }
+
+    if (((internal.time_index + 1) < rule.timecnt) &&
+        GetTimeZoneTime(time2, rule, time, internal.time_index, 1)) {
+        out_times[1] = time2;
+        out_count = 2;
+        R_SUCCEED();
+    }
+
+    out_count = 1;
+    R_SUCCEED();
+}
+
+} // namespace Service::PSC::Time

src/core/hle/service/psc/time/time_zone.h

@@ -0,0 +1,62 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <mutex>
+#include <span>
+
+#include <tz/tz.h>
+#include "core/hle/service/psc/time/common.h"
+
+namespace Service::PSC::Time {
+
+class TimeZone {
+public:
+    TimeZone() = default;
+
+    bool IsInitialized() const {
+        return m_initialized;
+    }
+
+    void SetInitialized() {
+        m_initialized = true;
+    }
+
+    void SetTimePoint(SteadyClockTimePoint& time_point);
+    void SetTotalLocationNameCount(u32 count);
+    void SetRuleVersion(RuleVersion& rule_version);
+    Result GetLocationName(LocationName& out_name);
+    Result GetTotalLocationCount(u32& out_count);
+    Result GetRuleVersion(RuleVersion& out_rule_version);
+    Result GetTimePoint(SteadyClockTimePoint& out_time_point);
+
+    Result ToCalendarTime(CalendarTime& out_calendar_time,
+                          CalendarAdditionalInfo& out_additional_info, s64 time, Tz::Rule& rule);
+    Result ToCalendarTimeWithMyRule(CalendarTime& calendar_time,
+                                    CalendarAdditionalInfo& calendar_additional, s64 time);
+    Result ParseBinary(LocationName& name, std::span<const u8> binary);
+    Result ParseBinaryInto(Tz::Rule& out_rule, std::span<const u8> binary);
+    Result ToPosixTime(u32& out_count, std::span<s64, 2> out_times, u32 out_times_count,
+                       CalendarTime& calendar, Tz::Rule& rule);
+    Result ToPosixTimeWithMyRule(u32& out_count, std::span<s64, 2> out_times, u32 out_times_count,
+                                 CalendarTime& calendar);
+
+private:
+    Result ParseBinaryImpl(Tz::Rule& out_rule, std::span<const u8> binary);
+    Result ToCalendarTimeImpl(CalendarTime& out_calendar_time,
+                              CalendarAdditionalInfo& out_additional_info, s64 time,
+                              Tz::Rule& rule);
+    Result ToPosixTimeImpl(u32& out_count, std::span<s64, 2> out_times, u32 out_times_count,
+                           CalendarTime& calendar, Tz::Rule& rule, s32 is_dst);
+
+    bool m_initialized{};
+    std::recursive_mutex m_mutex;
+    LocationName m_location{};
+    Tz::Rule m_my_rule{};
+    SteadyClockTimePoint m_steady_clock_time_point{};
+    u32 m_total_location_name_count{};
+    RuleVersion m_rule_version{};
+};
+
+} // namespace Service::PSC::Time

src/core/hle/service/psc/time/time_zone_service.cpp

@@ -0,0 +1,289 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include <tz/tz.h>
+#include "core/core.h"
+#include "core/hle/service/psc/time/time_zone_service.h"
+
+namespace Service::PSC::Time {
+
+TimeZoneService::TimeZoneService(Core::System& system_, StandardSteadyClockCore& clock_core,
+                                 TimeZone& time_zone, bool can_write_timezone_device_location)
+    : ServiceFramework{system_, "ITimeZoneService"}, m_system{system}, m_clock_core{clock_core},
+      m_time_zone{time_zone}, m_can_write_timezone_device_location{
+                                  can_write_timezone_device_location} {
+    // clang-format off
+    static const FunctionInfo functions[] = {
+        {0,   &TimeZoneService::Handle_GetDeviceLocationName, "GetDeviceLocationName"},
+        {1,   &TimeZoneService::Handle_SetDeviceLocationName, "SetDeviceLocationName"},
+        {2,   &TimeZoneService::Handle_GetTotalLocationNameCount, "GetTotalLocationNameCount"},
+        {3,   &TimeZoneService::Handle_LoadLocationNameList, "LoadLocationNameList"},
+        {4,   &TimeZoneService::Handle_LoadTimeZoneRule, "LoadTimeZoneRule"},
+        {5,   &TimeZoneService::Handle_GetTimeZoneRuleVersion, "GetTimeZoneRuleVersion"},
+        {6,   &TimeZoneService::Handle_GetDeviceLocationNameAndUpdatedTime, "GetDeviceLocationNameAndUpdatedTime"},
+        {7,   &TimeZoneService::Handle_SetDeviceLocationNameWithTimeZoneRule, "SetDeviceLocationNameWithTimeZoneRule"},
+        {8,   &TimeZoneService::Handle_ParseTimeZoneBinary, "ParseTimeZoneBinary"},
+        {20,  &TimeZoneService::Handle_GetDeviceLocationNameOperationEventReadableHandle, "GetDeviceLocationNameOperationEventReadableHandle"},
+        {100, &TimeZoneService::Handle_ToCalendarTime, "ToCalendarTime"},
+        {101, &TimeZoneService::Handle_ToCalendarTimeWithMyRule, "ToCalendarTimeWithMyRule"},
+        {201, &TimeZoneService::Handle_ToPosixTime, "ToPosixTime"},
+        {202, &TimeZoneService::Handle_ToPosixTimeWithMyRule, "ToPosixTimeWithMyRule"},
+    };
+    // clang-format on
+    RegisterHandlers(functions);
+}
+
+void TimeZoneService::Handle_GetDeviceLocationName(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    LocationName name{};
+    auto res = GetDeviceLocationName(name);
+
+    IPC::ResponseBuilder rb{ctx, 2 + sizeof(LocationName) / sizeof(u32)};
+    rb.Push(res);
+    rb.PushRaw<LocationName>(name);
+}
+
+void TimeZoneService::Handle_SetDeviceLocationName(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::RequestParser rp{ctx};
+    [[maybe_unused]] auto name{rp.PopRaw<LocationName>()};
+
+    if (!m_can_write_timezone_device_location) {
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(ResultPermissionDenied);
+        return;
+    }
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ResultNotImplemented);
+}
+
+void TimeZoneService::Handle_GetTotalLocationNameCount(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    u32 count{};
+    auto res = GetTotalLocationNameCount(count);
+
+    IPC::ResponseBuilder rb{ctx, 3};
+    rb.Push(res);
+    rb.Push(count);
+}
+
+void TimeZoneService::Handle_LoadLocationNameList(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ResultNotImplemented);
+}
+
+void TimeZoneService::Handle_LoadTimeZoneRule(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ResultNotImplemented);
+}
+
+void TimeZoneService::Handle_GetTimeZoneRuleVersion(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    RuleVersion rule_version{};
+    auto res = GetTimeZoneRuleVersion(rule_version);
+
+    IPC::ResponseBuilder rb{ctx, 2 + sizeof(RuleVersion) / sizeof(u32)};
+    rb.Push(res);
+    rb.PushRaw<RuleVersion>(rule_version);
+}
+
+void TimeZoneService::Handle_GetDeviceLocationNameAndUpdatedTime(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    LocationName name{};
+    SteadyClockTimePoint time_point{};
+    auto res = GetDeviceLocationNameAndUpdatedTime(time_point, name);
+
+    IPC::ResponseBuilder rb{ctx, 2 + (sizeof(LocationName) / sizeof(u32)) +
+                                     (sizeof(SteadyClockTimePoint) / sizeof(u32))};
+    rb.Push(res);
+    rb.PushRaw<LocationName>(name);
+    rb.PushRaw<SteadyClockTimePoint>(time_point);
+}
+
+void TimeZoneService::Handle_SetDeviceLocationNameWithTimeZoneRule(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::RequestParser rp{ctx};
+    auto name{rp.PopRaw<LocationName>()};
+
+    auto binary{ctx.ReadBuffer()};
+    auto res = SetDeviceLocationNameWithTimeZoneRule(name, binary);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(res);
+}
+
+void TimeZoneService::Handle_ParseTimeZoneBinary(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    auto binary{ctx.ReadBuffer()};
+
+    Tz::Rule rule{};
+    auto res = ParseTimeZoneBinary(rule, binary);
+
+    ctx.WriteBuffer(rule);
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(res);
+}
+
+void TimeZoneService::Handle_GetDeviceLocationNameOperationEventReadableHandle(
+    HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::ResponseBuilder rb{ctx, 2};
+    rb.Push(ResultNotImplemented);
+}
+
+void TimeZoneService::Handle_ToCalendarTime(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::RequestParser rp{ctx};
+    auto time{rp.Pop<s64>()};
+
+    auto rule_buffer{ctx.ReadBuffer()};
+    Tz::Rule rule{};
+    std::memcpy(&rule, rule_buffer.data(), sizeof(Tz::Rule));
+
+    CalendarTime calendar_time{};
+    CalendarAdditionalInfo additional_info{};
+    auto res = ToCalendarTime(calendar_time, additional_info, time, rule);
+
+    IPC::ResponseBuilder rb{ctx, 2 + (sizeof(CalendarTime) / sizeof(u32)) +
+                                     (sizeof(CalendarAdditionalInfo) / sizeof(u32))};
+    rb.Push(res);
+    rb.PushRaw<CalendarTime>(calendar_time);
+    rb.PushRaw<CalendarAdditionalInfo>(additional_info);
+}
+
+void TimeZoneService::Handle_ToCalendarTimeWithMyRule(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::RequestParser rp{ctx};
+    auto time{rp.Pop<s64>()};
+
+    CalendarTime calendar_time{};
+    CalendarAdditionalInfo additional_info{};
+    auto res = ToCalendarTimeWithMyRule(calendar_time, additional_info, time);
+
+    IPC::ResponseBuilder rb{ctx, 2 + (sizeof(CalendarTime) / sizeof(u32)) +
+                                     (sizeof(CalendarAdditionalInfo) / sizeof(u32))};
+    rb.Push(res);
+    rb.PushRaw<CalendarTime>(calendar_time);
+    rb.PushRaw<CalendarAdditionalInfo>(additional_info);
+}
+
+void TimeZoneService::Handle_ToPosixTime(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::RequestParser rp{ctx};
+    auto calendar{rp.PopRaw<CalendarTime>()};
+
+    auto binary{ctx.ReadBuffer()};
+
+    Tz::Rule rule{};
+    std::memcpy(&rule, binary.data(), sizeof(Tz::Rule));
+
+    u32 count{};
+    std::array<s64, 2> times{};
+    u32 times_count{static_cast<u32>(ctx.GetWriteBufferSize() / sizeof(s64))};
+
+    auto res = ToPosixTime(count, times, times_count, calendar, rule);
+
+    ctx.WriteBuffer(times);
+
+    IPC::ResponseBuilder rb{ctx, 3};
+    rb.Push(res);
+    rb.Push(count);
+}
+
+void TimeZoneService::Handle_ToPosixTimeWithMyRule(HLERequestContext& ctx) {
+    LOG_DEBUG(Service_Time, "called.");
+
+    IPC::RequestParser rp{ctx};
+    auto calendar{rp.PopRaw<CalendarTime>()};
+
+    u32 count{};
+    std::array<s64, 2> times{};
+    u32 times_count{static_cast<u32>(ctx.GetWriteBufferSize() / sizeof(s64))};
+
+    auto res = ToPosixTimeWithMyRule(count, times, times_count, calendar);
+
+    ctx.WriteBuffer(times);
+
+    IPC::ResponseBuilder rb{ctx, 3};
+    rb.Push(res);
+    rb.Push(count);
+}
+
+// =============================== Implementations ===========================
+
+Result TimeZoneService::GetDeviceLocationName(LocationName& out_location_name) {
+    R_RETURN(m_time_zone.GetLocationName(out_location_name));
+}
+
+Result TimeZoneService::GetTotalLocationNameCount(u32& out_count) {
+    R_RETURN(m_time_zone.GetTotalLocationCount(out_count));
+}
+
+Result TimeZoneService::GetTimeZoneRuleVersion(RuleVersion& out_rule_version) {
+    R_RETURN(m_time_zone.GetRuleVersion(out_rule_version));
+}
+
+Result TimeZoneService::GetDeviceLocationNameAndUpdatedTime(SteadyClockTimePoint& out_time_point,
+                                                            LocationName& location_name) {
+    R_TRY(m_time_zone.GetLocationName(location_name));
+    R_RETURN(m_time_zone.GetTimePoint(out_time_point));
+}
+
+Result TimeZoneService::SetDeviceLocationNameWithTimeZoneRule(LocationName& location_name,
+                                                              std::span<const u8> binary) {
+    R_UNLESS(m_can_write_timezone_device_location, ResultPermissionDenied);
+    R_TRY(m_time_zone.ParseBinary(location_name, binary));
+
+    SteadyClockTimePoint time_point{};
+    R_TRY(m_clock_core.GetCurrentTimePoint(time_point));
+
+    m_time_zone.SetTimePoint(time_point);
+    R_SUCCEED();
+}
+
+Result TimeZoneService::ParseTimeZoneBinary(Tz::Rule& out_rule, std::span<const u8> binary) {
+    R_RETURN(m_time_zone.ParseBinaryInto(out_rule, binary));
+}
+
+Result TimeZoneService::ToCalendarTime(CalendarTime& out_calendar_time,
+                                       CalendarAdditionalInfo& out_additional_info, s64 time,
+                                       Tz::Rule& rule) {
+    R_RETURN(m_time_zone.ToCalendarTime(out_calendar_time, out_additional_info, time, rule));
+}
+
+Result TimeZoneService::ToCalendarTimeWithMyRule(CalendarTime& out_calendar_time,
+                                                 CalendarAdditionalInfo& out_additional_info,
+                                                 s64 time) {
+    R_RETURN(m_time_zone.ToCalendarTimeWithMyRule(out_calendar_time, out_additional_info, time));
+}
+
+Result TimeZoneService::ToPosixTime(u32& out_count, std::span<s64, 2> out_times,
+                                    u32 out_times_count, CalendarTime& calendar_time,
+                                    Tz::Rule& rule) {
+    R_RETURN(m_time_zone.ToPosixTime(out_count, out_times, out_times_count, calendar_time, rule));
+}
+
+Result TimeZoneService::ToPosixTimeWithMyRule(u32& out_count, std::span<s64, 2> out_times,
+                                              u32 out_times_count, CalendarTime& calendar_time) {
+    R_RETURN(
+        m_time_zone.ToPosixTimeWithMyRule(out_count, out_times, out_times_count, calendar_time));
+}
+
+} // namespace Service::PSC::Time

src/core/hle/service/psc/time/time_zone_service.h

@@ -0,0 +1,69 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "core/hle/service/ipc_helpers.h"
+#include "core/hle/service/psc/time/common.h"
+#include "core/hle/service/psc/time/manager.h"
+#include "core/hle/service/server_manager.h"
+#include "core/hle/service/service.h"
+
+namespace Core {
+class System;
+}
+
+namespace Tz {
+struct Rule;
+}
+
+namespace Service::PSC::Time {
+
+class TimeZoneService final : public ServiceFramework<TimeZoneService> {
+public:
+    explicit TimeZoneService(Core::System& system, StandardSteadyClockCore& clock_core,
+                             TimeZone& time_zone, bool can_write_timezone_device_location);
+
+    ~TimeZoneService() override = default;
+
+    Result GetDeviceLocationName(LocationName& out_location_name);
+    Result GetTotalLocationNameCount(u32& out_count);
+    Result GetTimeZoneRuleVersion(RuleVersion& out_rule_version);
+    Result GetDeviceLocationNameAndUpdatedTime(SteadyClockTimePoint& out_time_point,
+                                               LocationName& location_name);
+    Result SetDeviceLocationNameWithTimeZoneRule(LocationName& location_name,
+                                                 std::span<const u8> binary);
+    Result ParseTimeZoneBinary(Tz::Rule& out_rule, std::span<const u8> binary);
+    Result ToCalendarTime(CalendarTime& out_calendar_time,
+                          CalendarAdditionalInfo& out_additional_info, s64 time, Tz::Rule& rule);
+    Result ToCalendarTimeWithMyRule(CalendarTime& out_calendar_time,
+                                    CalendarAdditionalInfo& out_additional_info, s64 time);
+    Result ToPosixTime(u32& out_count, std::span<s64, 2> out_times, u32 out_times_count,
+                       CalendarTime& calendar_time, Tz::Rule& rule);
+    Result ToPosixTimeWithMyRule(u32& out_count, std::span<s64, 2> out_times, u32 out_times_count,
+                                 CalendarTime& calendar_time);
+
+private:
+    void Handle_GetDeviceLocationName(HLERequestContext& ctx);
+    void Handle_SetDeviceLocationName(HLERequestContext& ctx);
+    void Handle_GetTotalLocationNameCount(HLERequestContext& ctx);
+    void Handle_LoadLocationNameList(HLERequestContext& ctx);
+    void Handle_LoadTimeZoneRule(HLERequestContext& ctx);
+    void Handle_GetTimeZoneRuleVersion(HLERequestContext& ctx);
+    void Handle_GetDeviceLocationNameAndUpdatedTime(HLERequestContext& ctx);
+    void Handle_SetDeviceLocationNameWithTimeZoneRule(HLERequestContext& ctx);
+    void Handle_ParseTimeZoneBinary(HLERequestContext& ctx);
+    void Handle_GetDeviceLocationNameOperationEventReadableHandle(HLERequestContext& ctx);
+    void Handle_ToCalendarTime(HLERequestContext& ctx);
+    void Handle_ToCalendarTimeWithMyRule(HLERequestContext& ctx);
+    void Handle_ToPosixTime(HLERequestContext& ctx);
+    void Handle_ToPosixTimeWithMyRule(HLERequestContext& ctx);
+
+    Core::System& m_system;
+
+    StandardSteadyClockCore& m_clock_core;
+    TimeZone& m_time_zone;
+    bool m_can_write_timezone_device_location;
+};
+
+} // namespace Service::PSC::Time

src/core/hle/service/service.cpp

@@ -66,7 +66,6 @@
 #include "core/hle/service/sockets/sockets.h"
 #include "core/hle/service/spl/spl_module.h"
 #include "core/hle/service/ssl/ssl.h"
-#include "core/hle/service/time/time.h"
 #include "core/hle/service/usb/usb.h"
 #include "core/hle/service/vi/vi.h"
 #include "core/reporter.h"
@@ -246,6 +245,9 @@ Services::Services(std::shared_ptr<SM::ServiceManager>& sm, Core::System& system
     kernel.RunOnGuestCoreProcess("fatal",      [&] { Fatal::LoopProcess(system); });
     kernel.RunOnGuestCoreProcess("fgm",        [&] { FGM::LoopProcess(system); });
     kernel.RunOnGuestCoreProcess("friends",    [&] { Friend::LoopProcess(system); });
+    // glue depends on settings and psc, so they must come first
+    kernel.RunOnGuestCoreProcess("settings",   [&] { Set::LoopProcess(system); });
+    kernel.RunOnGuestCoreProcess("psc",        [&] { PSC::LoopProcess(system); });
     kernel.RunOnGuestCoreProcess("glue",       [&] { Glue::LoopProcess(system); });
     kernel.RunOnGuestCoreProcess("grc",        [&] { GRC::LoopProcess(system); });
     kernel.RunOnGuestCoreProcess("hid",        [&] { HID::LoopProcess(system); });
@@ -269,13 +271,10 @@ Services::Services(std::shared_ptr<SM::ServiceManager>& sm, Core::System& system
     kernel.RunOnGuestCoreProcess("pcv",        [&] { PCV::LoopProcess(system); });
     kernel.RunOnGuestCoreProcess("prepo",      [&] { PlayReport::LoopProcess(system); });
     kernel.RunOnGuestCoreProcess("ProcessManager", [&] { PM::LoopProcess(system); });
-    kernel.RunOnGuestCoreProcess("psc",        [&] { PSC::LoopProcess(system); });
     kernel.RunOnGuestCoreProcess("ptm",        [&] { PTM::LoopProcess(system); });
     kernel.RunOnGuestCoreProcess("ro",         [&] { RO::LoopProcess(system); });
-    kernel.RunOnGuestCoreProcess("settings",   [&] { Set::LoopProcess(system); });
     kernel.RunOnGuestCoreProcess("spl",        [&] { SPL::LoopProcess(system); });
     kernel.RunOnGuestCoreProcess("ssl",        [&] { SSL::LoopProcess(system); });
-    kernel.RunOnGuestCoreProcess("time",       [&] { Time::LoopProcess(system); });
     kernel.RunOnGuestCoreProcess("usb",        [&] { USB::LoopProcess(system); });
     // clang-format on
 }

src/core/hle/service/set/private_settings.h

@@ -0,0 +1,72 @@
+// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <array>
+
+#include "common/bit_field.h"
+#include "common/common_funcs.h"
+#include "common/common_types.h"
+#include "common/uuid.h"
+#include "core/hle/service/psc/time/common.h"
+
+namespace Service::Set {
+
+/// This is nn::settings::system::InitialLaunchFlag
+struct InitialLaunchFlag {
+    union {
+        u32 raw{};
+
+        BitField<0, 1, u32> InitialLaunchCompletionFlag;
+        BitField<8, 1, u32> InitialLaunchUserAdditionFlag;
+        BitField<16, 1, u32> InitialLaunchTimestampFlag;
+    };
+};
+static_assert(sizeof(InitialLaunchFlag) == 4, "InitialLaunchFlag is an invalid size");
+
+/// This is nn::settings::system::InitialLaunchSettings
+struct InitialLaunchSettings {
+    InitialLaunchFlag flags;
+    INSERT_PADDING_BYTES(0x4);
+    Service::PSC::Time::SteadyClockTimePoint timestamp;
+};
+static_assert(sizeof(InitialLaunchSettings) == 0x20, "InitialLaunchSettings is incorrect size");
+
+#pragma pack(push, 4)
+struct InitialLaunchSettingsPacked {
+    InitialLaunchFlag flags;
+    Service::PSC::Time::SteadyClockTimePoint timestamp;
+};
+#pragma pack(pop)
+static_assert(sizeof(InitialLaunchSettingsPacked) == 0x1C,
+              "InitialLaunchSettingsPacked is incorrect size");
+
+struct PrivateSettings {
+    std::array<u8, 0x10> reserved_00;
+
+    // nn::settings::system::InitialLaunchSettings
+    InitialLaunchSettings initial_launch_settings;
+
+    std::array<u8, 0x20> reserved_30;
+
+    Common::UUID external_clock_source_id;
+    s64 shutdown_rtc_value;
+    s64 external_steady_clock_internal_offset;
+
+    std::array<u8, 0x60> reserved_70;
+
+    // nn::settings::system::PlatformRegion
+    std::array<u8, 0x4> platform_region;
+
+    std::array<u8, 0x4> reserved_D4;
+};
+static_assert(offsetof(PrivateSettings, initial_launch_settings) == 0x10);
+static_assert(offsetof(PrivateSettings, external_clock_source_id) == 0x50);
+static_assert(offsetof(PrivateSettings, reserved_70) == 0x70);
+static_assert(offsetof(PrivateSettings, platform_region) == 0xD0);
+static_assert(sizeof(PrivateSettings) == 0xD8, "PrivateSettings has the wrong size!");
+
+PrivateSettings DefaultPrivateSettings();
+
+} // namespace Service::Set

src/core/hle/service/set/setting_formats/private_settings.h

@@ -8,7 +8,6 @@
 #include "common/common_types.h"
 #include "common/uuid.h"
 #include "core/hle/service/set/settings_types.h"
-#include "core/hle/service/time/clock_types.h"
 
 namespace Service::Set {
 

src/core/hle/service/set/setting_formats/system_settings.cpp

@@ -45,7 +45,7 @@ SystemSettings DefaultSystemSettings() {
     };
 
     settings.device_time_zone_location_name = {"UTC"};
-    settings.user_system_clock_automatic_correction_enabled = false;
+    settings.user_system_clock_automatic_correction_enabled = true;
 
     settings.primary_album_storage = PrimaryAlbumStorage::SdCard;
     settings.battery_percentage_flag = true;

src/core/hle/service/set/setting_formats/system_settings.h

@@ -12,7 +12,6 @@
 #include "common/vector_math.h"
 #include "core/hle/service/set/setting_formats/private_settings.h"
 #include "core/hle/service/set/settings_types.h"
-#include "core/hle/service/time/clock_types.h"
 
 namespace Service::Set {
 
@@ -197,12 +196,14 @@ struct SystemSettings {
     std::array<u8, 0x2C> backlight_settings_mixed_up;
     INSERT_PADDING_BYTES(0x64); // Reserved
 
-    Service::Time::Clock::SystemClockContext user_system_clock_context;
-    Service::Time::Clock::SystemClockContext network_system_clock_context;
+    // nn::time::SystemClockContext
+    Service::PSC::Time::SystemClockContext user_system_clock_context;
+    Service::PSC::Time::SystemClockContext network_system_clock_context;
     bool user_system_clock_automatic_correction_enabled;
     INSERT_PADDING_BYTES(0x3);
     INSERT_PADDING_BYTES(0x4); // Reserved
-    Service::Time::Clock::SteadyClockTimePoint
+    // nn::time::SteadyClockTimePoint
+    Service::PSC::Time::SteadyClockTimePoint
         user_system_clock_automatic_correction_updated_time_point;
     INSERT_PADDING_BYTES(0x10); // Reserved
 
@@ -280,9 +281,12 @@ struct SystemSettings {
     bool requires_run_repair_time_reviser;
     INSERT_PADDING_BYTES(0x6B); // Reserved
 
-    Service::Time::TimeZone::LocationName device_time_zone_location_name;
+    // nn::time::LocationName
+    Service::PSC::Time::LocationName device_time_zone_location_name;
     INSERT_PADDING_BYTES(0x4); // Reserved
-    Service::Time::Clock::SteadyClockTimePoint device_time_zone_location_updated_time;
+    // nn::time::SteadyClockTimePoint
+    Service::PSC::Time::SteadyClockTimePoint device_time_zone_location_updated_time;
+
     INSERT_PADDING_BYTES(0xC0); // Reserved
 
     // nn::settings::system::PrimaryAlbumStorage

src/core/hle/service/set/settings_types.h

@@ -9,7 +9,7 @@
 #include "common/common_funcs.h"
 #include "common/common_types.h"
 #include "common/uuid.h"
-#include "core/hle/service/time/clock_types.h"
+#include "core/hle/service/psc/time/common.h"
 
 namespace Service::Set {
 
@@ -365,7 +365,7 @@ struct EulaVersion {
     EulaVersionClockType clock_type;
     INSERT_PADDING_BYTES(0x4);
     s64 posix_time;
-    Time::Clock::SteadyClockTimePoint timestamp;
+    Service::PSC::Time::SteadyClockTimePoint timestamp;
 };
 static_assert(sizeof(EulaVersion) == 0x30, "EulaVersion is incorrect size");
 
@@ -398,14 +398,14 @@ static_assert(sizeof(HomeMenuScheme) == 0x14, "HomeMenuScheme is incorrect size"
 struct InitialLaunchSettings {
     InitialLaunchFlag flags;
     INSERT_PADDING_BYTES(0x4);
-    Service::Time::Clock::SteadyClockTimePoint timestamp;
+    Service::PSC::Time::SteadyClockTimePoint timestamp;
 };
 static_assert(sizeof(InitialLaunchSettings) == 0x20, "InitialLaunchSettings is incorrect size");
 
 #pragma pack(push, 4)
 struct InitialLaunchSettingsPacked {
     InitialLaunchFlag flags;
-    Service::Time::Clock::SteadyClockTimePoint timestamp;
+    Service::PSC::Time::SteadyClockTimePoint timestamp;
 };
 #pragma pack(pop)
 static_assert(sizeof(InitialLaunchSettingsPacked) == 0x1C,

src/core/hle/service/set/system_settings_server.cpp

@@ -489,11 +489,10 @@ void ISystemSettingsServer::SetExternalSteadyClockSourceId(HLERequestContext& ct
 void ISystemSettingsServer::GetUserSystemClockContext(HLERequestContext& ctx) {
     LOG_INFO(Service_SET, "called");
 
-    Service::Time::Clock::SystemClockContext context{};
+    Service::PSC::Time::SystemClockContext context{};
     auto res = GetUserSystemClockContext(context);
 
-    IPC::ResponseBuilder rb{ctx,
-                            2 + sizeof(Service::Time::Clock::SystemClockContext) / sizeof(u32)};
+    IPC::ResponseBuilder rb{ctx, 2 + sizeof(Service::PSC::Time::SystemClockContext) / sizeof(u32)};
     rb.Push(res);
     rb.PushRaw(context);
 }
@@ -502,7 +501,7 @@ void ISystemSettingsServer::SetUserSystemClockContext(HLERequestContext& ctx) {
     LOG_INFO(Service_SET, "called");
 
     IPC::RequestParser rp{ctx};
-    auto context{rp.PopRaw<Service::Time::Clock::SystemClockContext>()};
+    auto context{rp.PopRaw<Service::PSC::Time::SystemClockContext>()};
 
     auto res = SetUserSystemClockContext(context);
 
@@ -809,19 +808,19 @@ void ISystemSettingsServer::GetQuestFlag(HLERequestContext& ctx) {
 void ISystemSettingsServer::GetDeviceTimeZoneLocationName(HLERequestContext& ctx) {
     LOG_INFO(Service_SET, "called");
 
-    Service::Time::TimeZone::LocationName name{};
+    Service::PSC::Time::LocationName name{};
     auto res = GetDeviceTimeZoneLocationName(name);
 
-    IPC::ResponseBuilder rb{ctx, 2 + sizeof(Service::Time::TimeZone::LocationName) / sizeof(u32)};
+    IPC::ResponseBuilder rb{ctx, 2 + sizeof(Service::PSC::Time::LocationName) / sizeof(u32)};
     rb.Push(res);
-    rb.PushRaw<Service::Time::TimeZone::LocationName>(name);
+    rb.PushRaw<Service::PSC::Time::LocationName>(name);
 }
 
 void ISystemSettingsServer::SetDeviceTimeZoneLocationName(HLERequestContext& ctx) {
     LOG_INFO(Service_SET, "called");
 
     IPC::RequestParser rp{ctx};
-    auto name{rp.PopRaw<Service::Time::TimeZone::LocationName>()};
+    auto name{rp.PopRaw<Service::PSC::Time::LocationName>()};
 
     auto res = SetDeviceTimeZoneLocationName(name);
 
@@ -843,11 +842,10 @@ void ISystemSettingsServer::SetRegionCode(HLERequestContext& ctx) {
 void ISystemSettingsServer::GetNetworkSystemClockContext(HLERequestContext& ctx) {
     LOG_INFO(Service_SET, "called");
 
-    Service::Time::Clock::SystemClockContext context{};
+    Service::PSC::Time::SystemClockContext context{};
     auto res = GetNetworkSystemClockContext(context);
 
-    IPC::ResponseBuilder rb{ctx,
-                            2 + sizeof(Service::Time::Clock::SystemClockContext) / sizeof(u32)};
+    IPC::ResponseBuilder rb{ctx, 2 + sizeof(Service::PSC::Time::SystemClockContext) / sizeof(u32)};
     rb.Push(res);
     rb.PushRaw(context);
 }
@@ -856,7 +854,7 @@ void ISystemSettingsServer::SetNetworkSystemClockContext(HLERequestContext& ctx)
     LOG_INFO(Service_SET, "called");
 
     IPC::RequestParser rp{ctx};
-    auto context{rp.PopRaw<Service::Time::Clock::SystemClockContext>()};
+    auto context{rp.PopRaw<Service::PSC::Time::SystemClockContext>()};
 
     auto res = SetNetworkSystemClockContext(context);
 
@@ -1141,19 +1139,19 @@ void ISystemSettingsServer::GetKeyboardLayout(HLERequestContext& ctx) {
 void ISystemSettingsServer::GetDeviceTimeZoneLocationUpdatedTime(HLERequestContext& ctx) {
     LOG_INFO(Service_SET, "called");
 
-    Service::Time::Clock::SteadyClockTimePoint time_point{};
+    Service::PSC::Time::SteadyClockTimePoint time_point{};
     auto res = GetDeviceTimeZoneLocationUpdatedTime(time_point);
 
     IPC::ResponseBuilder rb{ctx, 4};
     rb.Push(res);
-    rb.PushRaw<Service::Time::Clock::SteadyClockTimePoint>(time_point);
+    rb.PushRaw<Service::PSC::Time::SteadyClockTimePoint>(time_point);
 }
 
 void ISystemSettingsServer::SetDeviceTimeZoneLocationUpdatedTime(HLERequestContext& ctx) {
     LOG_INFO(Service_SET, "called");
 
     IPC::RequestParser rp{ctx};
-    auto time_point{rp.PopRaw<Service::Time::Clock::SteadyClockTimePoint>()};
+    auto time_point{rp.PopRaw<Service::PSC::Time::SteadyClockTimePoint>()};
 
     auto res = SetDeviceTimeZoneLocationUpdatedTime(time_point);
 
@@ -1165,12 +1163,12 @@ void ISystemSettingsServer::GetUserSystemClockAutomaticCorrectionUpdatedTime(
     HLERequestContext& ctx) {
     LOG_INFO(Service_SET, "called");
 
-    Service::Time::Clock::SteadyClockTimePoint time_point{};
+    Service::PSC::Time::SteadyClockTimePoint time_point{};
     auto res = GetUserSystemClockAutomaticCorrectionUpdatedTime(time_point);
 
     IPC::ResponseBuilder rb{ctx, 4};
     rb.Push(res);
-    rb.PushRaw<Service::Time::Clock::SteadyClockTimePoint>(time_point);
+    rb.PushRaw<Service::PSC::Time::SteadyClockTimePoint>(time_point);
 }
 
 void ISystemSettingsServer::SetUserSystemClockAutomaticCorrectionUpdatedTime(
@@ -1178,7 +1176,7 @@ void ISystemSettingsServer::SetUserSystemClockAutomaticCorrectionUpdatedTime(
     LOG_INFO(Service_SET, "called");
 
     IPC::RequestParser rp{ctx};
-    auto time_point{rp.PopRaw<Service::Time::Clock::SteadyClockTimePoint>()};
+    auto time_point{rp.PopRaw<Service::PSC::Time::SteadyClockTimePoint>()};
 
     auto res = SetUserSystemClockAutomaticCorrectionUpdatedTime(time_point);
 
@@ -1257,25 +1255,25 @@ void ISystemSettingsServer::StoreSettings() {
     auto system_dir =
         Common::FS::GetYuzuPath(Common::FS::YuzuPath::NANDDir) / "system/save/8000000000000050";
     if (!StoreSettingsFile(system_dir, m_system_settings)) {
-        LOG_ERROR(HW_GPU, "Failed to store System settings");
+        LOG_ERROR(Service_SET, "Failed to store System settings");
     }
 
     auto private_dir =
         Common::FS::GetYuzuPath(Common::FS::YuzuPath::NANDDir) / "system/save/8000000000000052";
     if (!StoreSettingsFile(private_dir, m_private_settings)) {
-        LOG_ERROR(HW_GPU, "Failed to store Private settings");
+        LOG_ERROR(Service_SET, "Failed to store Private settings");
     }
 
     auto device_dir =
         Common::FS::GetYuzuPath(Common::FS::YuzuPath::NANDDir) / "system/save/8000000000000053";
     if (!StoreSettingsFile(device_dir, m_device_settings)) {
-        LOG_ERROR(HW_GPU, "Failed to store Device settings");
+        LOG_ERROR(Service_SET, "Failed to store Device settings");
     }
 
     auto appln_dir =
         Common::FS::GetYuzuPath(Common::FS::YuzuPath::NANDDir) / "system/save/8000000000000054";
     if (!StoreSettingsFile(appln_dir, m_appln_settings)) {
-        LOG_ERROR(HW_GPU, "Failed to store ApplLn settings");
+        LOG_ERROR(Service_SET, "Failed to store ApplLn settings");
     }
 }
 
@@ -1318,39 +1316,39 @@ Result ISystemSettingsServer::SetExternalSteadyClockSourceId(Common::UUID id) {
 }
 
 Result ISystemSettingsServer::GetUserSystemClockContext(
-    Service::Time::Clock::SystemClockContext& out_context) {
+    Service::PSC::Time::SystemClockContext& out_context) {
     out_context = m_system_settings.user_system_clock_context;
     R_SUCCEED();
 }
 
 Result ISystemSettingsServer::SetUserSystemClockContext(
-    Service::Time::Clock::SystemClockContext& context) {
+    Service::PSC::Time::SystemClockContext& context) {
     m_system_settings.user_system_clock_context = context;
     SetSaveNeeded();
     R_SUCCEED();
 }
 
 Result ISystemSettingsServer::GetDeviceTimeZoneLocationName(
-    Service::Time::TimeZone::LocationName& out_name) {
+    Service::PSC::Time::LocationName& out_name) {
     out_name = m_system_settings.device_time_zone_location_name;
     R_SUCCEED();
 }
 
 Result ISystemSettingsServer::SetDeviceTimeZoneLocationName(
-    Service::Time::TimeZone::LocationName& name) {
+    Service::PSC::Time::LocationName& name) {
     m_system_settings.device_time_zone_location_name = name;
     SetSaveNeeded();
     R_SUCCEED();
 }
 
 Result ISystemSettingsServer::GetNetworkSystemClockContext(
-    Service::Time::Clock::SystemClockContext& out_context) {
+    Service::PSC::Time::SystemClockContext& out_context) {
     out_context = m_system_settings.network_system_clock_context;
     R_SUCCEED();
 }
 
 Result ISystemSettingsServer::SetNetworkSystemClockContext(
-    Service::Time::Clock::SystemClockContext& context) {
+    Service::PSC::Time::SystemClockContext& context) {
     m_system_settings.network_system_clock_context = context;
     SetSaveNeeded();
     R_SUCCEED();
@@ -1379,26 +1377,26 @@ Result ISystemSettingsServer::GetExternalSteadyClockInternalOffset(s64& out_offs
 }
 
 Result ISystemSettingsServer::GetDeviceTimeZoneLocationUpdatedTime(
-    Service::Time::Clock::SteadyClockTimePoint& out_time_point) {
+    Service::PSC::Time::SteadyClockTimePoint& out_time_point) {
     out_time_point = m_system_settings.device_time_zone_location_updated_time;
     R_SUCCEED();
 }
 
 Result ISystemSettingsServer::SetDeviceTimeZoneLocationUpdatedTime(
-    Service::Time::Clock::SteadyClockTimePoint& time_point) {
+    Service::PSC::Time::SteadyClockTimePoint& time_point) {
     m_system_settings.device_time_zone_location_updated_time = time_point;
     SetSaveNeeded();
     R_SUCCEED();
 }
 
 Result ISystemSettingsServer::GetUserSystemClockAutomaticCorrectionUpdatedTime(
-    Service::Time::Clock::SteadyClockTimePoint& out_time_point) {
+    Service::PSC::Time::SteadyClockTimePoint& out_time_point) {
     out_time_point = m_system_settings.user_system_clock_automatic_correction_updated_time_point;
     R_SUCCEED();
 }
 
 Result ISystemSettingsServer::SetUserSystemClockAutomaticCorrectionUpdatedTime(
-    Service::Time::Clock::SteadyClockTimePoint out_time_point) {
+    Service::PSC::Time::SteadyClockTimePoint out_time_point) {
     m_system_settings.user_system_clock_automatic_correction_updated_time_point = out_time_point;
     SetSaveNeeded();
     R_SUCCEED();

src/core/hle/service/set/system_settings_server.h

@@ -11,14 +11,13 @@
 #include "common/polyfill_thread.h"
 #include "common/uuid.h"
 #include "core/hle/result.h"
+#include "core/hle/service/psc/time/common.h"
 #include "core/hle/service/service.h"
 #include "core/hle/service/set/setting_formats/appln_settings.h"
 #include "core/hle/service/set/setting_formats/device_settings.h"
 #include "core/hle/service/set/setting_formats/private_settings.h"
 #include "core/hle/service/set/setting_formats/system_settings.h"
 #include "core/hle/service/set/settings_types.h"
-#include "core/hle/service/time/clock_types.h"
-#include "core/hle/service/time/time_zone_types.h"
 
 namespace Core {
 class System;
@@ -51,24 +50,24 @@ public:
 
     Result GetExternalSteadyClockSourceId(Common::UUID& out_id);
     Result SetExternalSteadyClockSourceId(Common::UUID id);
-    Result GetUserSystemClockContext(Service::Time::Clock::SystemClockContext& out_context);
-    Result SetUserSystemClockContext(Service::Time::Clock::SystemClockContext& context);
-    Result GetDeviceTimeZoneLocationName(Service::Time::TimeZone::LocationName& out_name);
-    Result SetDeviceTimeZoneLocationName(Service::Time::TimeZone::LocationName& name);
-    Result GetNetworkSystemClockContext(Service::Time::Clock::SystemClockContext& out_context);
-    Result SetNetworkSystemClockContext(Service::Time::Clock::SystemClockContext& context);
+    Result GetUserSystemClockContext(Service::PSC::Time::SystemClockContext& out_context);
+    Result SetUserSystemClockContext(Service::PSC::Time::SystemClockContext& context);
+    Result GetDeviceTimeZoneLocationName(Service::PSC::Time::LocationName& out_name);
+    Result SetDeviceTimeZoneLocationName(Service::PSC::Time::LocationName& name);
+    Result GetNetworkSystemClockContext(Service::PSC::Time::SystemClockContext& out_context);
+    Result SetNetworkSystemClockContext(Service::PSC::Time::SystemClockContext& context);
     Result IsUserSystemClockAutomaticCorrectionEnabled(bool& out_enabled);
     Result SetUserSystemClockAutomaticCorrectionEnabled(bool enabled);
     Result SetExternalSteadyClockInternalOffset(s64 offset);
     Result GetExternalSteadyClockInternalOffset(s64& out_offset);
     Result GetDeviceTimeZoneLocationUpdatedTime(
-        Service::Time::Clock::SteadyClockTimePoint& out_time_point);
+        Service::PSC::Time::SteadyClockTimePoint& out_time_point);
     Result SetDeviceTimeZoneLocationUpdatedTime(
-        Service::Time::Clock::SteadyClockTimePoint& time_point);
+        Service::PSC::Time::SteadyClockTimePoint& time_point);
     Result GetUserSystemClockAutomaticCorrectionUpdatedTime(
-        Service::Time::Clock::SteadyClockTimePoint& out_time_point);
+        Service::PSC::Time::SteadyClockTimePoint& out_time_point);
     Result SetUserSystemClockAutomaticCorrectionUpdatedTime(
-        Service::Time::Clock::SteadyClockTimePoint time_point);
+        Service::PSC::Time::SteadyClockTimePoint time_point);
 
 private:
     void SetLanguageCode(HLERequestContext& ctx);
@@ -147,8 +146,8 @@ private:
     PrivateSettings m_private_settings{};
     DeviceSettings m_device_settings{};
     ApplnSettings m_appln_settings{};
-    std::jthread m_save_thread;
     std::mutex m_save_needed_mutex;
+    std::jthread m_save_thread;
     bool m_save_needed{false};
 };
 

src/core/hle/service/sm/sm.h

@@ -3,6 +3,7 @@
 
 #pragma once
 
+#include <chrono>
 #include <memory>
 #include <mutex>
 #include <string>
@@ -10,6 +11,7 @@
 
 #include "common/concepts.h"
 #include "core/hle/kernel/k_port.h"
+#include "core/hle/kernel/svc.h"
 #include "core/hle/result.h"
 #include "core/hle/service/service.h"
 
@@ -62,12 +64,21 @@ public:
     Result GetServicePort(Kernel::KClientPort** out_client_port, const std::string& name);
 
     template <Common::DerivedFrom<SessionRequestHandler> T>
-    std::shared_ptr<T> GetService(const std::string& service_name) const {
+    std::shared_ptr<T> GetService(const std::string& service_name, bool block = false) const {
         auto service = registered_services.find(service_name);
-        if (service == registered_services.end()) {
+        if (service == registered_services.end() && !block) {
             LOG_DEBUG(Service, "Can't find service: {}", service_name);
             return nullptr;
+        } else if (block) {
+            using namespace std::literals::chrono_literals;
+            while (service == registered_services.end()) {
+                Kernel::Svc::SleepThread(
+                    kernel.System(),
+                    std::chrono::duration_cast<std::chrono::nanoseconds>(100ms).count());
+                service = registered_services.find(service_name);
+            }
         }
+
         return std::static_pointer_cast<T>(service->second());
     }
 

src/core/hle/service/time/clock_types.h

@@ -1,129 +0,0 @@
-// SPDX-FileCopyrightText: Copyright 2019 yuzu Emulator Project
-// SPDX-License-Identifier: GPL-2.0-or-later
-
-#pragma once
-
-#include <ratio>
-
-#include "common/common_funcs.h"
-#include "common/common_types.h"
-#include "common/uuid.h"
-#include "core/hle/service/time/errors.h"
-#include "core/hle/service/time/time_zone_types.h"
-
-// Defined by WinBase.h on Windows
-#ifdef GetCurrentTime
-#undef GetCurrentTime
-#endif
-
-namespace Service::Time::Clock {
-
-enum class TimeType : u8 {
-    UserSystemClock,
-    NetworkSystemClock,
-    LocalSystemClock,
-};
-
-/// https://switchbrew.org/wiki/Glue_services#SteadyClockTimePoint
-struct SteadyClockTimePoint {
-    s64 time_point;
-    Common::UUID clock_source_id;
-
-    Result GetSpanBetween(SteadyClockTimePoint other, s64& span) const {
-        span = 0;
-
-        if (clock_source_id != other.clock_source_id) {
-            return ERROR_TIME_MISMATCH;
-        }
-
-        span = other.time_point - time_point;
-
-        return ResultSuccess;
-    }
-
-    static SteadyClockTimePoint GetRandom() {
-        return {0, Common::UUID::MakeRandom()};
-    }
-};
-static_assert(sizeof(SteadyClockTimePoint) == 0x18, "SteadyClockTimePoint is incorrect size");
-static_assert(std::is_trivially_copyable_v<SteadyClockTimePoint>,
-              "SteadyClockTimePoint must be trivially copyable");
-
-struct SteadyClockContext {
-    u64 internal_offset;
-    Common::UUID steady_time_point;
-};
-static_assert(sizeof(SteadyClockContext) == 0x18, "SteadyClockContext is incorrect size");
-static_assert(std::is_trivially_copyable_v<SteadyClockContext>,
-              "SteadyClockContext must be trivially copyable");
-using StandardSteadyClockTimePointType = SteadyClockContext;
-
-struct SystemClockContext {
-    s64 offset;
-    SteadyClockTimePoint steady_time_point;
-};
-static_assert(sizeof(SystemClockContext) == 0x20, "SystemClockContext is incorrect size");
-static_assert(std::is_trivially_copyable_v<SystemClockContext>,
-              "SystemClockContext must be trivially copyable");
-
-struct ContinuousAdjustmentTimePoint {
-    s64 measurement_offset;
-    s64 diff_scale;
-    u32 shift_amount;
-    s64 lower;
-    s64 upper;
-    Common::UUID clock_source_id;
-};
-static_assert(sizeof(ContinuousAdjustmentTimePoint) == 0x38);
-static_assert(std::is_trivially_copyable_v<ContinuousAdjustmentTimePoint>,
-              "ContinuousAdjustmentTimePoint must be trivially copyable");
-
-/// https://switchbrew.org/wiki/Glue_services#TimeSpanType
-struct TimeSpanType {
-    s64 nanoseconds{};
-
-    s64 ToSeconds() const {
-        return nanoseconds / std::nano::den;
-    }
-
-    static TimeSpanType FromSeconds(s64 seconds) {
-        return {seconds * std::nano::den};
-    }
-
-    template <u64 Frequency>
-    static TimeSpanType FromTicks(u64 ticks) {
-        using TicksToNSRatio = std::ratio<std::nano::den, Frequency>;
-        return {static_cast<s64>(ticks * TicksToNSRatio::num / TicksToNSRatio::den)};
-    }
-};
-static_assert(sizeof(TimeSpanType) == 8, "TimeSpanType is incorrect size");
-
-struct ClockSnapshot {
-    SystemClockContext user_context;
-    SystemClockContext network_context;
-    s64 user_time;
-    s64 network_time;
-    TimeZone::CalendarTime user_calendar_time;
-    TimeZone::CalendarTime network_calendar_time;
-    TimeZone::CalendarAdditionalInfo user_calendar_additional_time;
-    TimeZone::CalendarAdditionalInfo network_calendar_additional_time;
-    SteadyClockTimePoint steady_clock_time_point;
-    TimeZone::LocationName location_name;
-    u8 is_automatic_correction_enabled;
-    TimeType type;
-    INSERT_PADDING_BYTES_NOINIT(0x2);
-
-    static Result GetCurrentTime(s64& current_time,
-                                 const SteadyClockTimePoint& steady_clock_time_point,
-                                 const SystemClockContext& context) {
-        if (steady_clock_time_point.clock_source_id != context.steady_time_point.clock_source_id) {
-            current_time = 0;
-            return ERROR_TIME_MISMATCH;
-        }
-        current_time = steady_clock_time_point.time_point + context.offset;
-        return ResultSuccess;
-    }
-};
-static_assert(sizeof(ClockSnapshot) == 0xD0, "ClockSnapshot is incorrect size");
-
-} // namespace Service::Time::Clock

src/core/hle/service/time/ephemeral_network_system_clock_context_writer.h

@@ -1,15 +0,0 @@
-// SPDX-FileCopyrightText: Copyright 2019 yuzu Emulator Project
-// SPDX-License-Identifier: GPL-2.0-or-later
-
-#pragma once
-
-#include "core/hle/service/time/system_clock_context_update_callback.h"
-
-namespace Service::Time::Clock {
-
-class EphemeralNetworkSystemClockContextWriter final : public SystemClockContextUpdateCallback {
-public:
-    EphemeralNetworkSystemClockContextWriter() : SystemClockContextUpdateCallback{} {}
-};
-
-} // namespace Service::Time::Clock

src/core/hle/service/time/ephemeral_network_system_clock_core.h

@@ -1,16 +0,0 @@
-// SPDX-FileCopyrightText: Copyright 2019 yuzu Emulator Project
-// SPDX-License-Identifier: GPL-2.0-or-later
-
-#pragma once
-
-#include "core/hle/service/time/system_clock_core.h"
-
-namespace Service::Time::Clock {
-
-class EphemeralNetworkSystemClockCore final : public SystemClockCore {
-public:
-    explicit EphemeralNetworkSystemClockCore(SteadyClockCore& steady_clock_core_)
-        : SystemClockCore{steady_clock_core_} {}
-};
-
-} // namespace Service::Time::Clock