The 2040 date limit is a forthcoming date-related software limitation in Apple's classic Hierarchical File System (HFS) and HFS Plus.

HFS and the Date & Time control panel from Mac OS 9.x can manage dates up to February 6, 2040, after which the clock will cycle back to January 1904.[1] Apple has since been migrating modern macOS users to its APFS file system, which does not have this limitation.[2]

References

  1. Solving Mac OS 8’s Y2K20 Bug by Josh Centers, TidBITS. 2020-01-03.
  2. Decoding the APFS file system by Kurt H. Hansen and Fergus Toolan, Norwegian Police University College. 2017-04-22. Revised 2017-06-21.

See also

External links

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