From: Eric Abrahamsen <eric@ericabrahamsen.net>
To: emacs-orgmode@gnu.org
Subject: Re: Timezones revisited
Date: Wed, 01 Feb 2017 09:33:47 -0800 [thread overview]
Message-ID: <8737fx4xz8.fsf@pellet> (raw)
In-Reply-To: 20170201162016.GJ7187@volibear.adamsinfoserv.com
Russell Adams <RLAdams@AdamsInfoServ.Com> writes:
> On Wed, Feb 01, 2017 at 11:14:15AM -0500, Peter Neilson wrote:
>> On Wed, 01 Feb 2017 10:50:24 -0500, Eric Abrahamsen
>> Presumably everyone already knows that the timezones are more complicated
>> than hoi polloi believe? The offsets are not always integer values of
>> hours. For example, Newfoundland time is UTC−03:30. Additional
>> complications include daylight saving time and the many historical
>> versions of timezones. The definition of UTC can remain pretty much
>> constant, but local-timezone time varies as a function of both location
>> and calendar date.
>
> Emacs has a timezone conversion function, which I assume pulls from
> the tz info database like all the other system commands.
>
> Local time zone should be the system time zone or one defined as a
> per-buffer variable.
Right, we'd be doing all our calculations based on the car of
`current-time-zone' (or the converted equivalent). I think that would
get us as close to "correct" as possible, and necessary.
Eric
prev parent reply other threads:[~2017-02-01 17:34 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-31 23:03 Timezones revisited Russell Adams
2017-02-01 15:50 ` Eric Abrahamsen
2017-02-01 16:05 ` Russell Adams
2017-02-01 16:29 ` Eric Abrahamsen
2017-02-01 16:14 ` Peter Neilson
2017-02-01 16:20 ` Russell Adams
2017-02-01 17:33 ` Eric Abrahamsen [this message]
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