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If I set the time zone environment variable: TZ="Foo/Bar", how does date handle different time zones and display the date accordingly?

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closed as not a real question by Indrek, TFM, BBlake, ChrisF, Synetech Nov 13 '12 at 22:13

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1 Answer 1

Short answer

GNU utils use the tz database that contains a representation of current, future and historical timezones and transform the output accordingly.

Long answer

Run info coreutils 'date input formats' if you have the full manual installed and read onwards for context, and specifically read 28.10 Specifying time zone rules. If the manual is not installed, you can read it read it online.

Appendix

Dates, time and time zones are really tricky to keep track of :-) .

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