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Date: Wed, 25 Mar 2015 09:56:13 +1100
Subject: Re: Daylight savings time question
From: Chris Angelico <rosuav@gmail.com>
Cc: Python List <python-list@python.org>
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On Wed, Mar 25, 2015 at 9:24 AM, Dan Stromberg <drsalists@gmail.com> wrote:
> Is there a way of "adding" 4 hours and getting a jump of 5 hours on
> March 8th, 2015 (due to Daylight Savings Time), without hardcoding
> when to spring forward and when to fall back?  I'd love it if there's
> some library that'll do this for me.

Fundamentally, this requires knowledge of timezone data. That means
you have to select a political time zone, which basically means you
want the Olsen database (tzdata) which primarily works with city
names. I'm not sure whether "US/Pacific" is suitable; I usually use
"America/Los_Angeles" for Pacific US time.

But that aside, what Gary said is what I would recommend.

ChrisA