On 2021-08-31 22:53, 2qdxy4rzwzuui...@potatochowder.com wrote:
On 2021-09-01 at 07:32:43 +1000,
Chris Angelico <ros...@gmail.com> wrote:
On Wed, Sep 1, 2021 at 7:17 AM <2qdxy4rzwzuui...@potatochowder.com> wrote:
> What about Phoenix? In the winter, it's the same time there as it is in
> San Francisco, but in the summer, it's the same time there as it is in
> Denver (Phoenix doesn't observe Daylight Saving Time).
I prefer to say: In winter, San Francisco (or Los Angeles) is the same
as Phoenix, but in summer, Los Angeles changes its clocks away, and
Denver changes to happen to be the same as Phoenix.
Not exactly. Sort of. Phoenix and Denver are both in America/Denver
(aka US/Mountain), but only Denver observes DST. San Francisco and Los
Angeles are both in America/Los_Angeles, and both observe DST.
At least the US has governed DST transitions. As I understand it, any
given city has to follow one of the standard time zones, and may
EITHER have no summer time, OR transition at precisely 2AM/3AM local
time on the federally-specified dates. (I think the EU has also
mandated something similar for member states.)
That's my understanding, too.
[snip]
In the EU, DST in the member states changes at the same time. It's not
like the US where it ripples across the timezones, so the differences
vary during the change. It all happens in one go.
--
https://mail.python.org/mailman/listinfo/python-list
