Xstamp Carbon dater.

Xstamp, like Rixstamp, is a file stamp editor - it reads and sets time stamps for your files and directories. But Xstamp is specific to OS X - and in particular the HFS file system in use there.

Unix stores three time values; HFS five. Unix only allows programmatic access to two; 'Carbon' allows access to the third Unix time value and its own unique fourth and fifth.

Unix and Carbon even have different 'epochs' and constraints. Unix time is from 1 January 1970 00:00:00 to 19 January 2038 03:14:07 UTC; HFS time is from 1 January 1904 00:00:00 to 6 February 2040 06:28:15 UTC. Both systems roll over after their final upper limit time stamps.

See Also
Rixstamp: January 1, 1970