diff --git a/src/Mayaqua/Kernel.c b/src/Mayaqua/Kernel.c
index ac2a0ae9..9d39d209 100644
--- a/src/Mayaqua/Kernel.c
+++ b/src/Mayaqua/Kernel.c
@@ -381,25 +381,6 @@ LIST *NewThreadList()
 	return o;
 }
 
-// Remove the thread from the thread list
-void DelThreadFromThreadList(LIST *o, THREAD *t)
-{
-	// Validate arguments
-	if (o == NULL || t == NULL)
-	{
-		return;
-	}
-
-	LockList(o);
-	{
-		if (Delete(o, t))
-		{
-			ReleaseThread(t);
-		}
-	}
-	UnlockList(o);
-}
-
 // Add the thread to the thread list
 void AddThreadToThreadList(LIST *o, THREAD *t)
 {
@@ -466,21 +447,6 @@ void MaintainThreadList(LIST *o)
 	UnlockList(o);
 }
 
-// Wait until all threads in the thread list will be stopped
-void WaitAllThreadsWillBeStopped(LIST *o)
-{
-	// Validate arguments
-	if (o == NULL)
-	{
-		return;
-	}
-
-	while (LIST_NUM(o) != 0)
-	{
-		SleepThread(100);
-	}
-}
-
 // Stop all the threads in the thread list
 void StopThreadList(LIST *o)
 {
@@ -559,33 +525,6 @@ void GetHomeDirW(wchar_t *path, UINT size)
 		}
 	}
 }
-void GetHomeDir(char *path, UINT size)
-{
-	// Validate arguments
-	if (path == NULL)
-	{
-		return;
-	}
-
-	if (GetEnv("HOME", path, size) == false)
-	{
-		char drive[MAX_SIZE];
-		char hpath[MAX_SIZE];
-		if (GetEnv("HOMEDRIVE", drive, sizeof(drive)) &&
-			GetEnv("HOMEPATH", hpath, sizeof(hpath)))
-		{
-			Format(path, sizeof(path), "%s%s", drive, hpath);
-		}
-		else
-		{
-#ifdef	OS_WIN32
-			Win32GetCurrentDir(path, size);
-#else	// OS_WIN32
-			UnixGetCurrentDir(path, size);
-#endif	// OS_WIN32
-		}
-	}
-}
 
 // Get the environment variable string
 bool GetEnv(char *name, char *data, UINT size)
@@ -906,21 +845,6 @@ void GetDateTimeStrEx64(wchar_t *str, UINT size, UINT64 sec64, LOCALE *locale)
 	UINT64ToSystem(&st, sec64);
 	GetDateTimeStrEx(str, size, &st, locale);
 }
-void GetTimeStrEx64(wchar_t *str, UINT size, UINT64 sec64, LOCALE *locale)
-{
-	SYSTEMTIME st;
-	if (locale == NULL)
-	{
-		locale = &current_locale;
-	}
-	if (sec64 == 0 || SystemToLocal64(sec64) == 0 || LocalToSystem64(sec64) == 0)
-	{
-		UniStrCpy(str, size, locale->Unknown);
-		return;
-	}
-	UINT64ToSystem(&st, sec64);
-	GetTimeStrEx(str, size, &st, locale);
-}
 void GetDateStrEx64(wchar_t *str, UINT size, UINT64 sec64, LOCALE *locale)
 {
 	SYSTEMTIME st;
@@ -947,17 +871,6 @@ void GetTimeStrMilli64(char *str, UINT size, UINT64 sec64)
 	UINT64ToSystem(&st, sec64);
 	GetTimeStrMilli(str, size, &st);
 }
-void GetTimeStr64(char *str, UINT size, UINT64 sec64)
-{
-	SYSTEMTIME st;
-	if (sec64 == 0 || SystemToLocal64(sec64) == 0 || LocalToSystem64(sec64) == 0)
-	{
-		StrCpy(str, size, "(Unknown)");
-		return;
-	}
-	UINT64ToSystem(&st, sec64);
-	GetTimeStr(str, size, &st);
-}
 
 // Convert to a time to be used safely in the current POSIX implementation
 UINT64 SafeTime64(UINT64 sec64)
@@ -1171,7 +1084,6 @@ THREAD *NewThreadNamed(THREAD_PROC *thread_proc, void *param, char *name)
 	THREAD *host = NULL;
 	THREAD_POOL_DATA *pd = NULL;
 	THREAD *ret;
-	bool new_thread = false;
 	// Validate arguments
 	if (thread_proc == NULL)
 	{
@@ -1195,8 +1107,6 @@ THREAD *NewThreadNamed(THREAD_PROC *thread_proc, void *param, char *name)
 		pd->InitFinishEvent = NewEvent();
 		host = NewThreadInternal(ThreadPoolProc, pd);
 		WaitThreadInitInternal(host);
-
-		new_thread = true;
 	}
 	else
 	{
@@ -1564,19 +1474,6 @@ void GetTimeStrMilli(char *str, UINT size, SYSTEMTIME *st)
 		st->wHour, st->wMinute, st->wSecond, st->wMilliseconds);
 }
 
-// Get the time string (for example, 12:34:56)
-void GetTimeStr(char *str, UINT size, SYSTEMTIME *st)
-{
-	// Validate arguments
-	if (str == NULL || st == NULL)
-	{
-		return;
-	}
-
-	Format(str, size, "%02u:%02u:%02u",
-		st->wHour, st->wMinute, st->wSecond);
-}
-
 // Get the date string (example: 2004/07/23)
 void GetDateStr(char *str, UINT size, SYSTEMTIME *st)
 {
@@ -1640,31 +1537,6 @@ void GetDateTimeStrRFC3339(char *str, UINT size, SYSTEMTIME *st, int timezone_mi
 	}
 }
 
-// Get the time string
-void GetSpanStr(char *str, UINT size, UINT64 sec64)
-{
-	char tmp[MAX_SIZE];
-	// Validate arguments
-	if (str == NULL)
-	{
-		return;
-	}
-
-	StrCpy(tmp, sizeof(tmp), "");
-	if (sec64 >= (UINT64)(1000 * 3600 * 24))
-	{
-		Format(tmp, sizeof(tmp), "%u:", (UINT)(sec64 / (UINT64)(1000 * 3600 * 24)));
-	}
-
-	Format(tmp, sizeof(tmp), "%s%02u:%02u:%02u", tmp,
-		(UINT)(sec64 % (UINT64)(1000 * 60 * 60 * 24)) / (1000 * 60 * 60),
-		(UINT)(sec64 % (UINT64)(1000 * 60 * 60)) / (1000 * 60),
-		(UINT)(sec64 % (UINT64)(1000 * 60)) / 1000);
-
-	Trim(tmp);
-	StrCpy(str, size, tmp);
-}
-
 // Get the time string (in milliseconds)
 void GetSpanStrMilli(char *str, UINT size, UINT64 sec64)
 {
@@ -1691,49 +1563,6 @@ void GetSpanStrMilli(char *str, UINT size, UINT64 sec64)
 	StrCpy(str, size, tmp);
 }
 
-// Get the time string (extended)
-void GetSpanStrEx(wchar_t *str, UINT size, UINT64 sec64, LOCALE *locale)
-{
-	wchar_t tmp[MAX_SIZE];
-	// Validate arguments
-	if (str == NULL)
-	{
-		return;
-	}
-
-	locale = (locale != NULL ? locale : &current_locale);
-
-	UniStrCpy(tmp, sizeof(tmp), L"");
-	if (sec64 >= (UINT64)(1000 * 3600 * 24))
-	{
-		UniFormat(tmp, sizeof(tmp), L"%u%s ", (UINT)(sec64 / (UINT64)(1000 * 3600 * 24)),
-			locale->SpanDay);
-	}
-
-	UniFormat(tmp, sizeof(tmp), L"%s%u%s %02u%s %02u%s", tmp,
-		(UINT)(sec64 % (UINT64)(1000 * 60 * 60 * 24)) / (1000 * 60 * 60),
-		locale->SpanHour,
-		(UINT)(sec64 % (UINT64)(1000 * 60 * 60)) / (1000 * 60),
-		locale->SpanMinute,
-		(UINT)(sec64 % (UINT64)(1000 * 60)) / 1000,
-		locale->SpanSecond);
-
-	UniTrim(tmp);
-	UniStrCpy(str, size, tmp);
-}
-
-// Get the current locale information
-void GetCurrentLocale(LOCALE *locale)
-{
-	// Validate arguments
-	if (locale == NULL)
-	{
-		return;
-	}
-
-	Copy(locale, &current_locale, sizeof(LOCALE));
-}
-
 // Set the locale information
 void SetLocale(wchar_t *str)
 {
@@ -1896,16 +1725,6 @@ void TimeToSystem(SYSTEMTIME *st, time_64t t)
 	TmToSystem(st, &tmp);
 }
 
-// Convert the time_t to 64-bit SYSTEMTIME
-UINT64 TimeToSystem64(time_64t t)
-{
-	SYSTEMTIME st;
-
-	TimeToSystem(&st, t);
-
-	return SystemToUINT64(&st);
-}
-
 // Convert the SYSTEMTIME to time_t
 time_64t SystemToTime(SYSTEMTIME *st)
 {
@@ -1920,16 +1739,6 @@ time_64t SystemToTime(SYSTEMTIME *st)
 	return TmToTime(&t);
 }
 
-// Convert a 64-bit SYSTEMTIME to a time_t
-time_64t System64ToTime(UINT64 i)
-{
-	SYSTEMTIME st;
-
-	UINT64ToSystem(&st, i);
-
-	return SystemToTime(&st);
-}
-
 // Convert the tm to time_t
 time_64t TmToTime(struct tm *t)
 {
diff --git a/src/Mayaqua/Kernel.h b/src/Mayaqua/Kernel.h
index 6fa98087..58e3c825 100644
--- a/src/Mayaqua/Kernel.h
+++ b/src/Mayaqua/Kernel.h
@@ -196,11 +196,9 @@ void SetThreadName(UINT thread_id, char *name, void *param);
 
 struct tm * c_gmtime_r(const time_64t* timep, struct tm *tm);
 time_64t c_mkgmtime(struct tm *tm);
-time_64t System64ToTime(UINT64 i);
 void TmToSystem(SYSTEMTIME *st, struct tm *t);
 void SystemToTm(struct tm *t, SYSTEMTIME *st);
 void TimeToSystem(SYSTEMTIME *st, time_64t t);
-UINT64 TimeToSystem64(time_64t t);
 time_64t SystemToTime(SYSTEMTIME *st);
 time_64t TmToTime(struct tm *t);
 void TimeToTm(struct tm *t, time_64t time);
@@ -221,7 +219,6 @@ void LocalTime(SYSTEMTIME *st);
 void SystemTime(SYSTEMTIME *st);
 void SetLocale(wchar_t *str);
 bool LoadLocale(LOCALE *locale, wchar_t *str);
-void GetCurrentLocale(LOCALE *locale);
 void GetDateTimeStr(char *str, UINT size, SYSTEMTIME *st);
 void GetDateTimeStrMilli(char *str, UINT size, SYSTEMTIME *st);
 void GetDateStr(char *str, UINT size, SYSTEMTIME *st);
@@ -229,7 +226,6 @@ void GetDateTimeStrEx(wchar_t *str, UINT size, SYSTEMTIME *st, LOCALE *locale);
 void GetTimeStrEx(wchar_t *str, UINT size, SYSTEMTIME *st, LOCALE *locale);
 void GetDateStrEx(wchar_t *str, UINT size, SYSTEMTIME *st, LOCALE *locale);
 void GetTimeStrMilli(char *str, UINT size, SYSTEMTIME *st);
-void GetTimeStr(char *str, UINT size, SYSTEMTIME *st);
 UINT Tick();
 UINT TickRealtime();
 UINT TickRealtimeManual();
@@ -244,10 +240,8 @@ void GetDateTimeStrMilli64ForFileName(char *str, UINT size, UINT64 sec64);
 void GetDateTimeStrMilliForFileName(char *str, UINT size, SYSTEMTIME *tm);
 void GetDateStr64(char *str, UINT size, UINT64 sec64);
 void GetDateTimeStrEx64(wchar_t *str, UINT size, UINT64 sec64, LOCALE *locale);
-void GetTimeStrEx64(wchar_t *str, UINT size, UINT64 sec64, LOCALE *locale);
 void GetDateStrEx64(wchar_t *str, UINT size, UINT64 sec64, LOCALE *locale);
 void GetTimeStrMilli64(char *str, UINT size, UINT64 sec64);
-void GetTimeStr64(char *str, UINT size, UINT64 sec64);
 void GetDateTimeStrRFC3339(char *str, UINT size, SYSTEMTIME *st, int timezone_min);
 UINT64 SafeTime64(UINT64 sec64);
 bool Run(char *filename, char *arg, bool hide, bool wait);
@@ -257,26 +251,21 @@ void HashInstanceNameLocal(char *name, UINT size, char *instance_name);
 INSTANCE *NewSingleInstance(char *instance_name);
 INSTANCE *NewSingleInstanceEx(char *instance_name, bool user_local);
 void FreeSingleInstance(INSTANCE *inst);
-void GetSpanStr(char *str, UINT size, UINT64 sec64);
-void GetSpanStrEx(wchar_t *str, UINT size, UINT64 sec64, LOCALE *locale);
 void GetSpanStrMilli(char *str, UINT size, UINT64 sec64);
 void GetMemInfo(MEMINFO *info);
 bool GetEnv(char *name, char *data, UINT size);
 bool GetEnvW(wchar_t *name, wchar_t *data, UINT size);
 bool GetEnvW_ForWin32(wchar_t *name, wchar_t *data, UINT size);
 bool GetEnvW_ForUnix(wchar_t *name, wchar_t *data, UINT size);
-void GetHomeDir(char *path, UINT size);
 void GetHomeDirW(wchar_t *path, UINT size);
 void AbortExit();
 void AbortExitEx(char *msg);
 void YieldCpu();
 LIST *NewThreadList();
 void AddThreadToThreadList(LIST *o, THREAD *t);
-void DelThreadFromThreadList(LIST *o, THREAD *t);
 void MaintainThreadList(LIST *o);
 void FreeThreadList(LIST *o);
 void StopThreadList(LIST *o);
-void WaitAllThreadsWillBeStopped(LIST *o);
 UINT GetNumberOfCpu();
 
 #endif	// KERNEL_H