32-Bit Windows Time/Date Formats

The file time and the date are stored individually, using unsigned integers as bit fields. File time and date are packed as follows:

Time

Bit position: 0 1 2 3 4 5 6 7 8 9 A B C D E F
Length: 5 6 5
Contents: hours minutes 2-second increments
Value Range: 0-23 0-59 0-29 in 2-second intervals

Date

Bit position: 0 1 2 3 4 5 6 7 8 9 A B C D E F
Length: 7 4 5
Contents: year month day
Value Range: 0-119 1-12 1-31
(relative to 1980)

See Also

Global Constants