2040 date limit

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The 2040 date limit is a forthcoming date-related software limitation in Apple's classic Hierarchical File System (HFS) and HFS Plus.
HFS Plus and the Date & Time control panel from Mac OS 9.0.4 to 9.2.2 can manage dates up to February 6, 2040 at 06:28:15, after which the clock defined by its epoch will cycle back to January 1, 1904.Why Do Older Macs Reset to 1904? by Jeff Adkins, Low End Mac. 2004-01-15.Solving Mac OS 8’s Y2K20 Bug by Josh Centers, TidBITS. 2020-01-03. Since 2017, Apple has been migrating modern macOS users to its APFS file system, which does not have this limitation.Decoding the APFS file system by Kurt H. Hansen and Fergus Toolan, Norwegian Police University College. 2017-04-22. Revised 2017-06-21.
==References==
==See also==
*2020 date limit, a date-related software bug in Mac OS 9.0.3 and earlier.
*2036 date limit, a timestamp limit in Network Time Protocol version 3 and earlier.
*2038 date limit, an old Unix-based limitation of Mac OS X versions before 10.6.
*2554 date limit, a timestamp limit in the Apple File System.
==External links==
*HFS/HFS+ timestamp at Just Solve the File Format Problem
* at Wikipedia
Category:Software bugs
Category:2040