On 02/02/2023 16:37, Heinz Tuechler wrote:
tomas wrote/hat geschrieben on/am 02.02.2023 09:33:
On Thu, Feb 02, 2023 at 08:45:51AM +0100, Heinz Tuechler wrote:
It seems to me that this shows the time zone I selected at set up of the
computer, in my case Europe/Berlin. Using package lutz in R with correct
coordinates I see Europe/Vienna, based on open street map.
Days ago I did not even know that Berlin and Vienna are in different
time zones.
It is not uncommon problem. People set a time zone having the same
offset and later complain that historical data can not be trusted.
Ubuntu guesses timezone likely using their GeoIP service. For me it
works correctly. Approach implemented in Debian installer can be called
at least questionable. They allows to choose from incomplete subset of
time zones that is based on locale (selected several steps before).
Developers refuse requests to add an option with complete list of time
zones. So some users either finishes with incorrect time zone or have to
run dpkg-reconfigure tzdata.
I forgot to mention some methods to guess location and so time zone when
I was writing https://list.orgmode.org/orgmode/tqj9af$vhk$1...@ciao.gmane.io/
Vienna is special :)
There is no reason to add a timezone if there is nothing special.
zdump -v Europe/Berlin
Europe/Berlin Sun Sep 28 00:59:59 1980 UT = Sun Sep 28 02:59:59 1980
CEST isdst=1 gmtoff=7200
Europe/Berlin Sun Sep 28 01:00:00 1980 UT = Sun Sep 28 02:00:00 1980
CET isdst=0 gmtoff=3600
zdump -v Europe/Vienna
Europe/Vienna Sat Sep 27 21:59:59 1980 UT = Sat Sep 27 23:59:59 1980
CEST isdst=1 gmtoff=7200
Europe/Vienna Sat Sep 27 22:00:00 1980 UT = Sat Sep 27 23:00:00 1980
CET isdst=0 gmtoff=3600
03:00 -> 02:00 vs 24:00 -> 23:00 transition time.
