> Date: Fri, 22 Apr 2022 00:28:21 +0200 > From: Sebastian Benoit <be...@openbsd.org> > > Claudio Jeker(cje...@diehard.n-r-g.com) on 2022.04.20 15:12:57 +0200: > > On Wed, Apr 20, 2022 at 03:00:15PM +0200, Theo Buehler wrote: > > > Found this when looking at the timezone issue a couple of weeks back and > > > then forgot about it: > > > > > > This setenv() + localtime() looks like a hack to me and I don't really > > > understand why it should be preferable over using gmtime() directly. The > > > only change in output that I can see is that it causes %Z to print GMT > > > instead of UTC, so I modified the format string accordingly (but I have > > > no strong opinion on this). > > > > UTC is the proper timezone here. Not sure why gmtime results in %Z to > > return GMT since gmtime converts into UTC. On the other hand timezones > > in struct tm are strange so it probably just defaults to GMT for a 0 > > offset time. > > well, no. > UTC is not a timezone. UTC is a time standard. > GMT is the correct timezone.
Hmm, well, GMT is many things, one of which is the name used in the UK for the timezone UTC+0. Other names for that timezone exist. Instead of UTC+0 many people simply write UTC, so in that sense UTC can be considered a timezone. In an international context it is definitely better to specify times using the UTC "timezone".
