DOS ain't dead

Future time bug in MS-DOS (Miscellaneous)

posted by mceric, Germany, 02.03.2024, 21:53

> Time bug in DOS will be in year 2099 because of the limitation of FAT
> filesystem.

FAT timestamps use a 7-bit Value for the years since 1980, so you could reach 2107. However, Windows 3 needed a bugfix for the file manager because it would even display all years after 2000 wrong otherwise

Note that FAT timestamps can only encode even seconds, so a file cannot be timestamped 13:53:31, only 13:53:30 or 13:53:32.

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FreeDOS / DOSEMU2 / ...

Complete thread:

• Future time bug in MS-DOS - dggionco, 02.03.2024, 20:33
  • Future time bug in MS-DOS - Laaca, 02.03.2024, 21:06
    • Future time bug in MS-DOS - mceric, 02.03.2024, 21:53
      • Future time bug in MS-DOS - dggionco, 03.03.2024, 11:40