Chanseok Oh <chanseok@xxxxxxxxxx> writes: > BROKEN: anything other than UTC reports wrong date. > > $ TZ=KST git log '--date=format-local:%Y%m%d %H%M%S %z (%Z)' > --format=%cd -n1 > 20190401 210250 +0000 (KST) I think you are probably on a system where timezones can be given only with a more modern and unambiguous style and not in the potentially ambiguous abbreviated form. Here is one experiment to show what I mean: $ TZ=KST date Tue Apr 2 00:29:51 KST 2019 $ TZ=JST date Tue Apr 2 00:29:51 JST 2019 $ TZ=Asia/Tokyo date Tue Apr 2 09:29:51 JST 2019 Two points to be learned from the above exercise are: - It is not limited to your copy of "git". Even a system supplied command like "date" does not work with "JST" but it can grok Asia/Tokyo just fine ("JST" does not necessarily have to be "Japan standard time"; it could be Jamaican ;-)). - It is not limited to KST (is that Kabul standard time? Khartoum? Kinshasa?). Perhaps try TZ=Asia/Seoul or something?