diff --git a/src/core/libraries/kernel/thread_management.cpp b/src/core/libraries/kernel/thread_management.cpp
index c6f8b2766..218a743af 100644
--- a/src/core/libraries/kernel/thread_management.cpp
+++ b/src/core/libraries/kernel/thread_management.cpp
@@ -820,65 +820,6 @@ int PS4_SYSV_ABI posix_pthread_mutexattr_setprotocol(ScePthreadMutexattr* attr,
     return result;
 }
 
-int PS4_SYSV_ABI sceKernelClockGettime(s32 clock_id, SceKernelTimespec* tp) {
-    if (tp == nullptr) {
-        return SCE_KERNEL_ERROR_EFAULT;
-    }
-    clockid_t pclock_id = CLOCK_REALTIME;
-    switch (clock_id) {
-    case 0:
-        pclock_id = CLOCK_REALTIME;
-        break;
-    case 13:
-    case 4:
-        pclock_id = CLOCK_MONOTONIC;
-        break;
-    default:
-        UNREACHABLE();
-    }
-
-    timespec t{};
-    int result = clock_gettime(pclock_id, &t);
-    tp->tv_sec = t.tv_sec;
-    tp->tv_nsec = t.tv_nsec;
-    if (result == 0) {
-        return SCE_OK;
-    }
-    return SCE_KERNEL_ERROR_EINVAL;
-}
-
-int PS4_SYSV_ABI clock_gettime(s32 clock_id, SceKernelTimespec* time) {
-    int result = sceKernelClockGettime(clock_id, time);
-    if (result < 0) {
-        UNREACHABLE(); // TODO return posix error code
-    }
-    return result;
-}
-
-int PS4_SYSV_ABI sceKernelNanosleep(const SceKernelTimespec* rqtp, SceKernelTimespec* rmtp) {
-
-    if (rqtp == nullptr) {
-        return SCE_KERNEL_ERROR_EFAULT;
-    }
-
-    if (rqtp->tv_sec < 0 || rqtp->tv_nsec < 0) {
-        return SCE_KERNEL_ERROR_EINVAL;
-    }
-
-    u64 nanos = rqtp->tv_sec * 1000000000 + rqtp->tv_nsec;
-    std::this_thread::sleep_for(std::chrono::nanoseconds(nanos));
-    if (rmtp != nullptr) {
-        UNREACHABLE(); // not supported yet
-    }
-    return SCE_OK;
-}
-int PS4_SYSV_ABI nanosleep(const SceKernelTimespec* rqtp, SceKernelTimespec* rmtp) {
-    int result = sceKernelNanosleep(rqtp, rmtp);
-    if (result < 0) {
-        UNREACHABLE(); // TODO return posix error code
-    }
-    return result;
-}
 static int pthread_copy_attributes(ScePthreadAttr* dst, const ScePthreadAttr* src) {
     if (dst == nullptr || *dst == nullptr || src == nullptr || *src == nullptr) {
         return SCE_KERNEL_ERROR_EINVAL;
@@ -1288,10 +1229,6 @@ void pthreadSymbolsRegister(Core::Loader::SymbolsResolver* sym) {
                  posix_pthread_mutexattr_setprotocol);
     LIB_FUNCTION("HF7lK46xzjY", "libScePosix", 1, "libkernel", 1, 1,
                  posix_pthread_mutexattr_destroy);
-    LIB_FUNCTION("QBi7HCK03hw", "libkernel", 1, "libkernel", 1, 1, sceKernelClockGettime);
-    LIB_FUNCTION("lLMT9vJAck0", "libkernel", 1, "libkernel", 1, 1, clock_gettime);
-    LIB_FUNCTION("lLMT9vJAck0", "libScePosix", 1, "libkernel", 1, 1, clock_gettime);
-    LIB_FUNCTION("yS8U2TGCe1A", "libScePosix", 1, "libkernel", 1, 1, nanosleep);
 
     // openorbis weird functions
     LIB_FUNCTION("7H0iTOciTLo", "libkernel", 1, "libkernel", 1, 1, posix_pthread_mutex_lock);
diff --git a/src/core/libraries/kernel/thread_management.h b/src/core/libraries/kernel/thread_management.h
index ab97d0a47..a97def169 100644
--- a/src/core/libraries/kernel/thread_management.h
+++ b/src/core/libraries/kernel/thread_management.h
@@ -41,11 +41,6 @@ using OrbisPthreadRwlockattr = PthreadRwLockAttrInernal*;
 
 using pthreadEntryFunc = PS4_SYSV_ABI void* (*)(void*);
 
-struct SceKernelTimespec {
-    int64_t tv_sec;
-    int64_t tv_nsec;
-};
-
 struct PthreadInternal {
     u8 reserved[4096];
     std::string name;
diff --git a/src/core/libraries/kernel/time_management.cpp b/src/core/libraries/kernel/time_management.cpp
index 1b33c59ac..f5f7ab705 100644
--- a/src/core/libraries/kernel/time_management.cpp
+++ b/src/core/libraries/kernel/time_management.cpp
@@ -51,8 +51,57 @@ u32 PS4_SYSV_ABI sceKernelSleep(u32 seconds) {
     return 0;
 }
 
-int PS4_SYSV_ABI posix_nanosleep(timespec* requested_time, timespec* remaining) {
-    return nanosleep(requested_time, remaining);
+int PS4_SYSV_ABI sceKernelClockGettime(s32 clock_id, OrbisKernelTimespec* tp) {
+    if (tp == nullptr) {
+        return SCE_KERNEL_ERROR_EFAULT;
+    }
+    clockid_t pclock_id = CLOCK_REALTIME;
+    switch (clock_id) {
+    case 0:
+        pclock_id = CLOCK_REALTIME;
+        break;
+    case 13:
+    case 4:
+        pclock_id = CLOCK_MONOTONIC;
+        break;
+    default:
+        UNREACHABLE();
+    }
+
+    timespec t{};
+    int result = clock_gettime(pclock_id, &t);
+    tp->tv_sec = t.tv_sec;
+    tp->tv_nsec = t.tv_nsec;
+    if (result == 0) {
+        return SCE_OK;
+    }
+    return SCE_KERNEL_ERROR_EINVAL;
+}
+
+int PS4_SYSV_ABI clock_gettime(s32 clock_id, OrbisKernelTimespec* time) {
+    int result = sceKernelClockGettime(clock_id, time);
+    if (result < 0) {
+        UNREACHABLE(); // TODO return posix error code
+    }
+    return result;
+}
+
+int PS4_SYSV_ABI posix_nanosleep(const OrbisKernelTimespec* rqtp, OrbisKernelTimespec* rmtp) {
+    const auto* request = reinterpret_cast<const timespec*>(rqtp);
+    auto* remain = reinterpret_cast<timespec*>(rmtp);
+    return nanosleep(request, remain);
+}
+
+int PS4_SYSV_ABI sceKernelNanosleep(const OrbisKernelTimespec* rqtp, OrbisKernelTimespec* rmtp) {
+    if (!rqtp || !rmtp) {
+        return SCE_KERNEL_ERROR_EFAULT;
+    }
+
+    if (rqtp->tv_sec < 0 || rqtp->tv_nsec < 0) {
+        return SCE_KERNEL_ERROR_EINVAL;
+    }
+
+    return posix_nanosleep(rqtp, rmtp);
 }
 
 int PS4_SYSV_ABI sceKernelGettimeofday(OrbisKernelTimeval* tp) {
@@ -97,6 +146,9 @@ void timeSymbolsRegister(Core::Loader::SymbolsResolver* sym) {
     LIB_FUNCTION("-ZR+hG7aDHw", "libkernel", 1, "libkernel", 1, 1, sceKernelSleep);
     LIB_FUNCTION("0wu33hunNdE", "libScePosix", 1, "libkernel", 1, 1, sceKernelSleep);
     LIB_FUNCTION("yS8U2TGCe1A", "libkernel", 1, "libkernel", 1, 1, posix_nanosleep);
+    LIB_FUNCTION("QBi7HCK03hw", "libkernel", 1, "libkernel", 1, 1, sceKernelClockGettime);
+    LIB_FUNCTION("lLMT9vJAck0", "libkernel", 1, "libkernel", 1, 1, clock_gettime);
+    LIB_FUNCTION("lLMT9vJAck0", "libScePosix", 1, "libkernel", 1, 1, clock_gettime);
 }
 
 } // namespace Libraries::Kernel
diff --git a/src/core/libraries/kernel/time_management.h b/src/core/libraries/kernel/time_management.h
index dd395e7e7..64689bf67 100644
--- a/src/core/libraries/kernel/time_management.h
+++ b/src/core/libraries/kernel/time_management.h
@@ -12,8 +12,8 @@ class SymbolsResolver;
 namespace Libraries::Kernel {
 
 struct OrbisKernelTimeval {
-    u64 tv_sec;
-    u64 tv_usec;
+    s64 tv_sec;
+    s64 tv_usec;
 };
 
 struct OrbisKernelTimezone {
@@ -21,6 +21,11 @@ struct OrbisKernelTimezone {
     s32 tz_dsttime;
 };
 
+struct OrbisKernelTimespec {
+    s64 tv_sec;
+    s64 tv_nsec;
+};
+
 u64 PS4_SYSV_ABI sceKernelGetTscFrequency();
 u64 PS4_SYSV_ABI sceKernelGetProcessTime();
 u64 PS4_SYSV_ABI sceKernelGetProcessTimeCounter();