On Sun, Feb 04, 2018 at 06:45:16PM +0100, Nicolas George wrote:
David Wright (2018-02-04):
$ TZ=London date
Sun Feb 4 17:17:56 London 2018
$ TZ=UtterNonsense date
Sun Feb 4 17:44:00 UtterNonsense 2018
The fact that it printed the name you put and not the official name of
the time zone shows that the value is invalid. The correct value would
$ TZ=Europe/London date
Sun Feb 4 17:44:49 GMT 2018
Yup. This is worse when london is on DST:
env TZ=London date --iso=seconds -d '2018-06-04T19:15+0000'
env TZ=Europe/London date --iso=seconds -d '2018-06-04T19:15+0000'
I would love if that were fixable, but it's actually required by POSIX.
(Any arbitrary string can be a timezone name, with a bunch of parameters
specifying the offset from UTC, DST rules, etc. In the absence of
other parameters it's a synonym for UTC.) That's a glibc thing, not a