time.h File Reference

#include <corecrt.h>

Include dependency graph for time.h:

Go to the source code of this file.

Classes
struct	tm

Macros
#define	_TIME32_T_DEFINED
#define	_TIME64_T_DEFINED
#define	_TIME_T_DEFINED
#define	_CLOCK_T_DEFINED
#define	_SIZE_T_DEFINED
#define	_TM_DEFINED
#define	CLOCKS_PER_SEC   1000
#define	_WTIME_DEFINED
#define	_INC_WTIME_INL
#define	CLK_TCK   CLOCKS_PER_SEC

Typedefs
typedef long	__time32_t
typedef __time64_t	time_t
typedef long	clock_t
typedef unsigned int	size_t

Functions
	_CRTDATA (extern int _daylight)
	_CRTDATA (extern long _dstbias)
	_CRTDATA (extern char *_tzname[2])
_CRTIMP errno_t __cdecl	_get_daylight (_Out_ int *_Daylight)
_CRTIMP errno_t __cdecl	_get_dstbias (_Out_ long *_Daylight_savings_bias)
_CRTIMP errno_t __cdecl	_get_timezone (_Out_ long *_Timezone)
_CRTIMP errno_t __cdecl	_get_tzname (_Out_ size_t *_ReturnValue, _Out_writes_z_(_SizeInBytes) char *_Buffer, _In_ size_t _SizeInBytes, _In_ int _Index)
_Check_return_ _CRTIMP char *__cdecl	asctime (_In_ const struct tm *_Tm)
_CRTIMP char *__cdecl	_ctime32 (_In_ const __time32_t *_Time)
_Check_return_ _CRTIMP clock_t __cdecl	clock (void)
_CRTIMP double __cdecl	_difftime32 (_In_ __time32_t _Time1, _In_ __time32_t _Time2)
_Check_return_ _CRTIMP struct tm *__cdecl	_gmtime32 (_In_ const __time32_t *_Time)
_CRTIMP struct tm *__cdecl	_localtime32 (_In_ const __time32_t *_Time)
	_Success_ (return > 0) _CRTIMP size_t __cdecl strftime(_Out_writes_z_(_SizeInBytes) char *_Buf
_CRTIMP char *__cdecl	_strdate (_Out_writes_z_(9) char *_Buffer)
_CRTIMP char *__cdecl	_strtime (_Out_writes_z_(9) char *_Buffer)
_CRTIMP __time32_t __cdecl	_time32 (_Out_opt_ __time32_t *_Time)
_CRTIMP __time32_t __cdecl	_mktime32 (_Inout_ struct tm *_Tm)
_CRTIMP __time32_t __cdecl	_mkgmtime32 (_Inout_ struct tm *_Tm)
_CRTIMP void __cdecl	_tzset (void)
	_CRT_OBSOLETE (GetLocalTime) unsigned __cdecl _getsystime(_Out_ struct tm *_Tm)
unsigned __cdecl	_setsystime (_In_ struct tm *_Tm, unsigned _MilliSec)
_Check_return_wat_ _CRTIMP errno_t __cdecl	asctime_s (_Out_writes_(_SizeInBytes) _Post_readable_size_(26) char *_Buf, _In_range_(>=, 26) size_t _SizeInBytes, _In_ const struct tm *_Tm)
	_Success_ (return==0) _CRTIMP errno_t __cdecl _ctime32_s(_Out_writes_(_SizeInBytes) _Post_readable_size_(26) char *_Buf
	Deletes the virtual mapping and optionally gives back the page & dirty bit.
_Check_return_wat_ _CRTIMP errno_t __cdecl	_gmtime32_s (_In_ struct tm *_Tm, _In_ const __time32_t *_Time)
_CRTIMP errno_t __cdecl	_localtime32_s (_Out_ struct tm *_Tm, _In_ const __time32_t *_Time)
_Check_return_wat_ _CRTIMP errno_t __cdecl	_strdate_s (_Out_writes_(_SizeInBytes) _Post_readable_size_(9) char *_Buf, _In_range_(>=, 9) size_t _SizeInBytes)
_Check_return_wat_ _CRTIMP errno_t __cdecl	_strtime_s (_Out_writes_(_SizeInBytes) _Post_readable_size_(9) char *_Buf, _In_range_(>=, 9) size_t _SizeInBytes)
_CRTIMP wchar_t *__cdecl	_wasctime (_In_ const struct tm *_Tm)
_CRTIMP wchar_t *__cdecl	_wctime (const time_t *_Time)
_CRTIMP wchar_t *__cdecl	_wctime32 (_In_ const __time32_t *_Time)
_CRTIMP wchar_t *__cdecl	_wstrdate (_Out_writes_z_(9) wchar_t *_Buffer)
_CRTIMP wchar_t *__cdecl	_wstrtime (_Out_writes_z_(9) wchar_t *_Buffer)
_CRTIMP errno_t __cdecl	_wasctime_s (_Out_writes_(_SizeInWords) _Post_readable_size_(26) wchar_t *_Buf, _In_range_(>=, 26) size_t _SizeInWords, _In_ const struct tm *_Tm)
_CRTIMP errno_t __cdecl	_wstrdate_s (_Out_writes_(_SizeInWords) _Post_readable_size_(9) wchar_t *_Buf, _In_ size_t _SizeInWords)
_CRTIMP errno_t __cdecl	_wstrtime_s (_Out_writes_(_SizeInWords) _Post_readable_size_(9) wchar_t *_Buf, _In_range_(>=, 9) size_t _SizeInWords)
_CRTIMP double __cdecl	difftime (time_t _Time1, time_t _Time2)
_CRTIMP char *__cdecl	ctime (const time_t *_Time)
_CRTIMP struct tm *__cdecl	gmtime (const time_t *_Time)
_CRTIMP struct tm *__cdecl	localtime (const time_t *_Time)
_CRTIMP struct tm *__cdecl	localtime_r (const time_t *_Time, struct tm *)
_CRTIMP time_t __cdecl	mktime (struct tm *_Tm)
_CRTIMP time_t __cdecl	_mkgmtime (struct tm *_Tm)
_CRTIMP time_t __cdecl	time (time_t *_Time)
__CRT_INLINE errno_t __cdecl	localtime_s (struct tm *_Tm, const time_t *_Time)
_CRTIMP void __cdecl	tzset (void)

Variables
_In_ size_t	_SizeInBytes
_In_ size_t _In_z_ _Printf_format_string_ const char *	_Format
_In_ size_t _In_z_ _Printf_format_string_ const char _In_ const struct tm *	_Tm
_In_ size_t	_Max_size
_In_ size_t _In_z_ _Printf_format_string_ const char _In_ const struct tm _In_opt_ _locale_t	_Locale
_In_ size_t _In_ const __time32_t *	_Time
_In_ size_t	_SizeInWords
_CRTIMP int	daylight
_CRTIMP long	timezone
_CRTIMP char *	tzname [2]

Macro Definition Documentation

_CLOCK_T_DEFINED

#define _CLOCK_T_DEFINED

Definition at line 48 of file time.h.

_INC_WTIME_INL

#define _INC_WTIME_INL

Definition at line 379 of file time.h.

_SIZE_T_DEFINED

#define _SIZE_T_DEFINED

Definition at line 53 of file time.h.

_TIME32_T_DEFINED

#define _TIME32_T_DEFINED

This file has no copyright assigned and is placed in the Public Domain. This file is part of the w64 mingw-runtime package. No warranty is given; refer to the file DISCLAIMER within this package.

Definition at line 23 of file time.h.

_TIME64_T_DEFINED

#define _TIME64_T_DEFINED

Definition at line 28 of file time.h.

_TIME_T_DEFINED

#define _TIME_T_DEFINED

Definition at line 39 of file time.h.

_TM_DEFINED

#define _TM_DEFINED

Definition at line 67 of file time.h.

_WTIME_DEFINED

#define _WTIME_DEFINED

Definition at line 285 of file time.h.

CLK_TCK

#define CLK_TCK   CLOCKS_PER_SEC

Definition at line 425 of file time.h.

CLOCKS_PER_SEC

#define CLOCKS_PER_SEC   1000

Definition at line 81 of file time.h.

Typedef Documentation

__time32_t

typedef long __time32_t

Definition at line 24 of file time.h.

clock_t

typedef long clock_t

Definition at line 49 of file time.h.

size_t

typedef unsigned int size_t

Definition at line 62 of file time.h.

time_t

typedef __time64_t time_t

Definition at line 43 of file time.h.

Function Documentation

_CRT_OBSOLETE()

_CRT_OBSOLETE

(

GetLocalTime

)

_CRTDATA() [1/3]

_CRTDATA

(

extern char *

_tzname[2]

)

_CRTDATA() [2/3]

_CRTDATA

(

extern int

_daylight

)

_CRTDATA() [3/3]

_CRTDATA

(

extern long

_dstbias

)

_ctime32()

_CRTIMP char *__cdecl _ctime32

(

_In_ const __time32_t *

_Time

)

_difftime32()

_CRTIMP double __cdecl _difftime32	(	_In_ __time32_t	_Time1,
		_In_ __time32_t	_Time2
	)

_get_daylight()

_CRTIMP errno_t __cdecl _get_daylight

(

_Out_ int *

_Daylight

)

Referenced by _isindst_nolock(), common_localtime_s(), common_loctotime_t(), tzset_from_environment_nolock(), and tzset_from_system_nolock().

_get_dstbias()

_CRTIMP errno_t __cdecl _get_dstbias

(

_Out_ long *

_Daylight_savings_bias

)

Referenced by common_localtime_s(), common_loctotime_t(), common_mktime(), cvtdate(), expand_time(), and tzset_from_system_nolock().

_get_timezone()

_CRTIMP errno_t __cdecl _get_timezone

(

_Out_ long *

_Timezone

)

Referenced by common_ftime_s(), common_localtime_s(), common_loctotime_t(), common_mktime(), expand_time(), tzset_from_environment_nolock(), and tzset_from_system_nolock().

_get_tzname()

_CRTIMP errno_t __cdecl _get_tzname	(	_Out_ size_t *	_ReturnValue,
		_Out_writes_z_(_SizeInBytes) char *	_Buffer,
		_In_ size_t	_SizeInBytes,
		_In_ int	_Index
	)

Referenced by _Strftime().

_gmtime32()

_Check_return_ _CRTIMP struct tm *__cdecl _gmtime32

(

_In_ const __time32_t *

_Time

)

Referenced by test_gmtime64().

_gmtime32_s()

_Check_return_wat_ _CRTIMP errno_t __cdecl _gmtime32_s	(	_In_ struct tm *	_Tm,
		_In_ const __time32_t *	_Time
	)

Referenced by test_gmtime64().

_localtime32()

_CRTIMP struct tm *__cdecl _localtime32

(

_In_ const __time32_t *

_Time

)

_localtime32_s()

_CRTIMP errno_t __cdecl _localtime32_s	(	_Out_ struct tm *	_Tm,
		_In_ const __time32_t *	_Time
	)

_mkgmtime()

__CRT_INLINE time_t __cdecl _mkgmtime

(

struct tm *

_Tm

)

Definition at line 419 of file time.h.

{ return _mkgmtime64(_Tm); }

Referenced by _tzset().

_mkgmtime32()

_CRTIMP __time32_t __cdecl _mkgmtime32

(

_Inout_ struct tm *

_Tm

)

_mktime32()

_CRTIMP __time32_t __cdecl _mktime32

(

_Inout_ struct tm *

_Tm

)

Referenced by _getsystime(), and _setsystime().

_setsystime()

unsigned __cdecl _setsystime	(	_In_ struct tm *	_Tm,
		unsigned	_MilliSec
	)

_strdate()

_CRTIMP char *__cdecl _strdate

(

_Out_writes_z_(9) char *

_Buffer

)

_strdate_s()

_Check_return_wat_ _CRTIMP errno_t __cdecl _strdate_s	(	_Out_writes_(_SizeInBytes) _Post_readable_size_(9) char *	_Buf,
		_In_range_(>=, 9) size_t	_SizeInBytes
	)

_strtime()

_CRTIMP char *__cdecl _strtime

(

_Out_writes_z_(9) char *

_Buffer

)

_strtime_s()

_Check_return_wat_ _CRTIMP errno_t __cdecl _strtime_s	(	_Out_writes_(_SizeInBytes) _Post_readable_size_(9) char *	_Buf,
		_In_range_(>=, 9) size_t	_SizeInBytes
	)

_Success_() [1/2]

_Success_	(	return	,
		0
	)

_Success_() [2/2]

_Success_

(

return

= = 0

)

Deletes the virtual mapping and optionally gives back the page & dirty bit.

Parameters

Process	- The process this address belongs to, or NULL if system address.
Address	- The address to unmap.
WasDirty	- Optional param receiving the dirty bit of the PTE.
Page	- Optional param receiving the page number previously mapped to this address.

Returns

Whether there was actually a page mapped at the given address.

Definition at line 57 of file firmware.c.

{
    NTSTATUS Status;
    SYSTEM_BOOT_ENVIRONMENT_INFORMATION BootInfo;
 
    /* Check input parameters */
    if (FirmwareType == NULL)
    {
        SetLastError(ERROR_INVALID_PARAMETER);
        return FALSE;
    }
 
    /* Query firmware type */
    Status = NtQuerySystemInformation(SystemBootEnvironmentInformation,
                                      &BootInfo,
                                      sizeof(BootInfo),
                                      0);
    if (!NT_SUCCESS(Status))
    {
        BaseSetLastNTError(Status);
        return FALSE;
    }
 
    *FirmwareType = BootInfo.FirmwareType;
    return TRUE;
}

_time32()

_CRTIMP __time32_t __cdecl _time32

(

_Out_opt_ __time32_t *

_Time

)

_tzset()

_CRTIMP void __cdecl _tzset

(

void

)

Definition at line 92 of file timezone.c.

{
    const char * str;
 
    if (_tz_is_set)
    {
        return;
    }
 
    /* Try to read the timezone from environment */
    str = getenv("TZ");
    if (str && str[0] != 0)
    {
        long hour = 0, min = 0, sec = 0;
        size_t len = strnlen(str, 16);
        int sign = 1;
 
        dst_begin = 0;
 
        for (;;)
        {
            /* Copy timezone name */
            strncpy(tz_name, str, 3);
            str += 3;
            len -= 3;
 
            if (len < 1) break;
 
            if (*str == '+' || *str == '-')
            {
                sign = *str == '-' ? -1 : 1;
                str++;
                len--;
            }
 
            if (len < 1) break;
 
            hour = atol(str);
 
            while (*str != 0 && *str != ':') str++;
            if (*str == 0) break;
 
            min = atol(++str);
 
            while (*str != 0 && *str != ':') str++;
            if (*str == 0) break;
 
            sec = atol(++str);
 
            while (*str != 0 && *str <= '9') str++;
            if (*str == 0) break;
 
            /* Copy DST name */
            strncpy(tz_dst_name, str, 3);
 
            // FIXME: set dst_begin etc
 
            /* We are finished */
            break;
        }
 
        _timezone = sign * (((hour * 60) + min) * 60 + sec);
 
    }
    else
    {
        TIME_ZONE_INFORMATION tzi;
        DWORD ret;
 
        ret = GetTimeZoneInformation(&tzi);
        if (ret == TIME_ZONE_ID_INVALID)
        {
            return;
        }
 
        ret = WideCharToMultiByte(CP_ACP,
                                  0,
                                  tzi.StandardName,
                                  -1,
                                  tz_name,
                                  sizeof(tz_name),
                                  NULL,
                                  NULL);
 
        ret = WideCharToMultiByte(CP_ACP,
                                  0,
                                  tzi.DaylightName,
                                  -1,
                                  tz_dst_name,
                                  sizeof(tz_dst_name),
                                  NULL,
                                  NULL);
 
        _timezone = tzi.Bias * 60;
 
        if (tzi.DaylightDate.wMonth)
        {
            struct tm _tm;
 
            _daylight = 1;
            _dstbias = (tzi.DaylightBias - tzi.StandardBias) * 60;
            _tm.tm_year = 70;
            _tm.tm_mon = tzi.DaylightDate.wMonth - 1;
            _tm.tm_mday = tzi.DaylightDate.wDay;
            _tm.tm_hour = tzi.DaylightDate.wHour;
            _tm.tm_min = tzi.DaylightDate.wMinute;
            _tm.tm_sec = tzi.DaylightDate.wSecond;
            dst_begin = (long)_mkgmtime(&_tm);
            _tm.tm_mon = tzi.StandardDate.wMonth - 1;
            _tm.tm_mday = tzi.StandardDate.wDay;
            _tm.tm_hour = tzi.StandardDate.wHour;
            _tm.tm_min = tzi.StandardDate.wMinute;
            _tm.tm_sec = tzi.StandardDate.wSecond;
            dst_end = (long)_mkgmtime(&_tm);
        }
        else
        {
            _daylight = 0;
            _dstbias = 0;
        }
 
    }
    _tz_is_set = 1;
}

Referenced by _Strftime(), gettimeofday(), localtime(), and test__tzset().

_wasctime()

_CRTIMP wchar_t *__cdecl _wasctime

(

_In_ const struct tm *

_Tm

)

_wasctime_s()

_CRTIMP errno_t __cdecl _wasctime_s	(	_Out_writes_(_SizeInWords) _Post_readable_size_(26) wchar_t *	_Buf,
		_In_range_(>=, 26) size_t	_SizeInWords,
		_In_ const struct tm *	_Tm
	)

_wctime()

__CRT_INLINE wchar_t *__cdecl _wctime

(

const time_t *

_Time

)

Definition at line 384 of file time.h.

{ return _wctime64(_Time); }

_wctime32()

_CRTIMP wchar_t *__cdecl _wctime32

(

_In_ const __time32_t *

_Time

)

_wstrdate()

_CRTIMP wchar_t *__cdecl _wstrdate

(

_Out_writes_z_(9) wchar_t *

_Buffer

)

_wstrdate_s()

_CRTIMP errno_t __cdecl _wstrdate_s	(	_Out_writes_(_SizeInWords) _Post_readable_size_(9) wchar_t *	_Buf,
		_In_ size_t	_SizeInWords
	)

_wstrtime()

_CRTIMP wchar_t *__cdecl _wstrtime

(

_Out_writes_z_(9) wchar_t *

_Buffer

)

_wstrtime_s()

_CRTIMP errno_t __cdecl _wstrtime_s	(	_Out_writes_(_SizeInWords) _Post_readable_size_(9) wchar_t *	_Buf,
		_In_range_(>=, 9) size_t	_SizeInWords
	)

asctime()

_Check_return_ _CRTIMP char *__cdecl asctime

(

_In_ const struct tm *

_Tm

)

Referenced by ConvertTimeString(), DaytimeHandler(), kbd_c(), kbd_h(), Test_asctime(), and test_asctime().

asctime_s()

_Check_return_wat_ _CRTIMP errno_t __cdecl asctime_s	(	_Out_writes_(_SizeInBytes) _Post_readable_size_(26) char *	_Buf,
		_In_range_(>=, 26) size_t	_SizeInBytes,
		_In_ const struct tm *	_Tm
	)

clock()

_Check_return_ _CRTIMP clock_t __cdecl clock

(

void

)

Definition at line 23 of file clock.c.

{
    ULARGE_INTEGER Time;
 
    GetSystemTimeAsFileTime((FILETIME*)&Time);
    Time.QuadPart -= g_StartupTime.QuadPart;
    return (clock_t)FileTimeToUnixTime((FILETIME*)&Time, NULL);
};

Referenced by BaseRendererImpl_SetSyncSource(), CKsClockForwarder_Constructor(), DMUSIC_CreateReferenceClockImpl(), get_time(), IDirectMusic8Impl_SetExternalMasterClock(), LIBXML_ATTR_FORMAT(), master_clock_create(), MediaStreamFilterImpl_GetSyncSource(), MediaStreamFilterImpl_SetSyncSource(), midi_IDirectMusicPort_GetLatencyClock(), QualityControlRender_SetClock(), startTimer(), SynthPortImpl_IDirectMusicPort_GetLatencyClock(), test_clock(), test_query_interface(), and test_wmreader_interfaces().

ctime()

_CRTIMP char *__cdecl ctime

(

const time_t *

_Time

)

Definition at line 414 of file time.h.

{ return _ctime64(_Time); }

difftime()

__CRT_INLINE double __cdecl difftime	(	time_t	_Time1,
		time_t	_Time2
	)

Definition at line 413 of file time.h.

{ return _difftime64(_Time1,_Time2); }

gmtime()

__CRT_INLINE struct tm *__cdecl gmtime

(

const time_t *

_Time

)

Definition at line 415 of file time.h.

{ return _gmtime64(_Time); }

Referenced by file_write_http_header(), getit(), GetUTCOffset(), GmTimeStr(), HTTP_HttpQueryInfoW(), iso9660_date(), iso9660_ldate(), localtime(), rdp_send_logon_info(), time_to_filetime(), and write_client_lease().

localtime()

__CRT_INLINE struct tm *__cdecl localtime

(

const time_t *

_Time

)

Definition at line 416 of file time.h.

{ return _localtime64(_Time); }

Referenced by _tctime(), add_special_defines(), CCabinet::ConvertDateAndTime(), DaytimeHandler(), DoOutput(), file_stat(), FormatDateTime(), get_fattime(), get_test_year(), GetStartSpoolDate(), init(), InitLsMonths(), iso9660_date(), iso9660_ldate(), LANStatusUiDetailsDlg(), logMess(), LsDate(), main(), NcFTPConfirmResumeDownloadProc(), NcFTPConfirmResumeUploadProc(), rdp_send_logon_info(), setup_tables(), SpoolName(), stime_arg1(), stime_arg2(), test_localtime(), test_mktime(), timeToStr(), Trace(), UnDate(), UnLslR(), UnMDTMDate(), write_volume_label(), and xmlMemDisplay().

localtime_r()

_CRTIMP struct tm *__cdecl localtime_r	(	const time_t *	_Time,
		struct tm *
	)

localtime_s()

__CRT_INLINE errno_t __cdecl localtime_s	(	struct tm *	_Tm,
		const time_t *	_Time
	)

Definition at line 417 of file time.h.

{ return _localtime64_s(_Tm,_Time); }

mktime()

__CRT_INLINE time_t __cdecl mktime

(

struct tm *

_Tm

)

Definition at line 418 of file time.h.

{ return _mktime64(_Tm); }

Referenced by __write_formatted_timeT(), ConvertTimeString(), get_ldate(), GetStartSpoolDate(), GetUTCOffset(), main(), rdp_send_logon_info(), stime_arg1(), stime_arg2(), test_mktime(), UnDate(), UnDosLine(), UnLslRLine(), and UnMDTMDate().

time()

_CRTIMP time_t __cdecl time

(

time_t *

_Time

)

Definition at line 420 of file time.h.

{ return _time64(_Time); }

tzset()

_CRTIMP void __cdecl tzset

(

void

)

Referenced by init_client().

Variable Documentation

_Format

_In_ size_t _In_z_ _Printf_format_string_ const wchar_t* _Format

Definition at line 147 of file time.h.

_Locale

_In_ size_t _In_ int _In_opt_ _locale_t _Locale

Initial value:

{
    _CRT_UNUSED(_Locale)

Definition at line 159 of file time.h.

Referenced by __DECLARE_CPP_OVERLOAD_INLINE_NFUNC_0_3_EX(), __DEFINE_CPP_OVERLOAD_INLINE_NFUNC_0_3_EX(), _chvalidchk_l(), _cprintf_l(), _cprintf_p_l(), _cprintf_s_l(), _CRT_INSECURE_DEPRECATE(), _cscanf_s_l(), _ischartype_l(), _strnset_s_l(), _tccpy_l(), _vcprintf_l(), _vcprintf_p_l(), _vcprintf_s_l(), and _vcscanf_s_l().

_Max_size

_In_ size_t _Max_size

Definition at line 156 of file time.h.

_SizeInBytes

_In_ size_t _SizeInBytes

Definition at line 146 of file time.h.

Referenced by _mbccpy_s_l(), _mbscat_s_l(), _mbscpy_s_l(), and _mbsset_s_l().

_SizeInWords

_In_ size_t _SizeInWords

Definition at line 309 of file time.h.

Referenced by swprintf(), and vswprintf().

_Time

_In_ size_t _In_ const __time32_t * _Time

Definition at line 192 of file time.h.

Referenced by _CRT_INSECURE_DEPRECATE(), _futime(), _utime(), _wctime(), _wctime_s(), _wutime(), ctime(), gmtime(), localtime(), localtime_s(), and time().

_Tm

_In_ size_t _In_z_ _Printf_format_string_ char const _In_ struct tm const * _Tm

Definition at line 148 of file time.h.

Referenced by _mkgmtime(), localtime_s(), and mktime().

daylight

_CRTIMP int daylight

extern

Referenced by _isindst_nolock(), common_localtime_s(), common_loctotime_t(), tzset_from_environment_nolock(), and tzset_from_system_nolock().

timezone

_CRTIMP long timezone

extern

tzname

_CRTIMP char* tzname[2]

extern

Referenced by tzset_from_environment_nolock(), and tzset_from_system_nolock().