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DosDateTimeToFileTime info  Overview  Group

The DosDateTimeToFileTime function converts MS-DOS date and time values to a 64-bit file time.

BOOL DosDateTimeToFileTime(

    WORD wFatDate,

// 16-bit MS-DOS date

    WORD wFatTime,

// 16-bit MS-DOS time

    LPFILETIME lpFileTime 

// pointer to buffer for 64-bit file time



Specifies the MS-DOS date. The date is a packed 16-bit value with the following format:




Day of the month (1-31)


Month (1 = January, 2 = February, and so on)


Year offset from 1980 (add 1980 to get actual year)

Specifies the MS-DOS time. The time is a packed 16-bit value with the following format:




Second divided by 2


Minute (0-59)


Hour (0-23 on a 24-hour clock)

Points to a FILETIME structure to receive the converted 64-bit file time.

Return Values

If the function succeeds, the return value is nonzero.

If the function fails, the return value is zero. To get extended error information, call GetLastError.

See Also

FILETIME, FileTimeToDosDateTime, FileTimeToSystemTime, SystemTimeToFileTime

See also:

file: /Techref/os/win/api/win32/func/src/f17_8.htm, 4KB, , updated: 2000/4/7 12:19, local time: 2022/5/20 10:52,

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