>>>>> "Christoph" == Christoph Berg <myon@debian.org> writes:
Christoph> There is something wrong here. On Debian Buster/unstable,
Christoph> using system tzdata (2019a-1), if /etc/timezone is
Christoph> "Etc/UTC":
Christoph> 11.3's initdb adds timezone = 'UCT' to postgresql.conf
Christoph> 12beta1's initdb add timezone = 'Etc/UCT' to postgresql.conf
fwiw on FreeBSD with no /etc/localtime and no TZ in the environment (and
hence running on UTC), I get "UCT" on both 11.3 and HEAD.
--
Andrew (irc:RhodiumToad)