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SYSTEMTIME info Overview Group

The SYSTEMTIME structure represents a date and time using individual members for the month, day, year, weekday, hour, minute, second, and millisecond.

typedef struct _SYSTEMTIME {  // st 

    WORD wYear; 

    WORD wMonth; 

    WORD wDayOfWeek; 

    WORD wDay; 

    WORD wHour; 

    WORD wMinute; 

    WORD wSecond; 

    WORD wMilliseconds; 

} SYSTEMTIME;

Members

wYear: Specifies the current year.
wMonth: Specifies the current month; January = 1, February = 2, and so on.
wDayOfWeek: Specifies the current day of the week; Sunday = 0, Monday = 1, and so on.
wDay: Specifies the current day of the month.
wHour: Specifies the current hour.
wMinute: Specifies the current minute.
wSecond: Specifies the current second.
wMilliseconds: Specifies the current millisecond.

Remarks

It is not recommended that you add and subtract values from the SYSTEMTIME structure to obtain relative times. Instead, you should

Convert the SYSTEMTIME structure to a FILETIME structure.
Copy the resulting FILETIME structure to a LARGE_INTEGER structure.
Use normal 64-bit arithmetic on the LARGE_INTEGER value.

SYSTEMTIME info Overview Group

Members

Remarks

See Also