Date: Fri, 25 Nov 2022 13:17:36 +0000
From: Harald van Dijk <a...@gigawatt.nl>
Message-ID: <f456c22f-6565-2545-4da8-db31243de...@gigawatt.nl>
| Does POSIX actually specify the seasonal
| adjustment, if applied, has to be 1 hour?
No, it doesn't - that's just the default (as it is most common) if an
(old style) POSIX TZ string doesn't specify the offset to be applied to
summer time.
It does specify the 1 hour default though. There's no problem with this
part of the TZ specification (other than that TZ strings cannot possibly
represent all of the world's timezones - the limit on the offset is 24
hours (ahead or behind UTC), and there's no way to specify an alteration
of the zone's offset, other than the seasonal variation (summer time).
kre
