On 8/20/23 21:56, Peter Gutmann wrote:
If you bundle something up on a system that's (say) 12 hours ahead of the
target system and unpack it there, many of the files will have dates up to 12
hours in the future
Not if "12 hours ahead" merely means a time zone difference. Tarball
timestamps use Universal Time. Local time is only for display.
$ TZ=Pacific/Auckland sh -c 'date; touch foo; ls -l foo; tar cf tar foo'
Mon Aug 21 03:16:08 PM NZST 2023
-rw-rw-r-- 1 eggert eggert 0 Aug 21 15:16 foo
$ TZ=America/Los_Angeles sh -c 'mkdir d; cd d; tar xf ../tar; date; ls
-l foo'
Sun Aug 20 08:16:12 PM PDT 2023
-rw-rw-r-- 1 eggert eggert 0 Aug 20 20:16 foo
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