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Re: Matplotlib X-axis timezone trouble

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On Tue, 30 Jun 2015 17:01:15 +1000, Chris Angelico <rosuav@gmail.com> wrote:
> On Tue, Jun 30, 2015 at 2:49 PM, Peter Pearson
><pkpearson@nowhere.invalid> wrote:
>> Time zones teem with sneaky software problems, and so does daylight-saving
>> time, so this problem might strain my brain.  Maybe it's going to turn
>> out that my expectations are unreasonable . . . as in, "Well, smarty pants,
>> how do you want the axis labelled when the abscissas straddle the
>> beginning of daylight-saving time?"  I'll research and digest.
>
> That's entirely possible. Even more so if you go across some other
> civil time change - if you look at the history of timezones in tzdata,
> there's no end of messes as different places adopted standard time,
> redefined standard time, and unified with someone else's standard
> time. And some of that happened relatively recently.
>
> UTC is much easier for this kind of thing. Especially if the
> granularity of your data lets you ignore leap seconds.

Hear, hear!  I'm an enthusiastic fan of UTC.  But I need to interact
with nontechnical people who will say, "Hey, I logged that widget at
9AM, why do you show it as 4PM?"  Another funny thing that happens in
the pure-UTC world is my software gets confused by the way Frank
abruptly shifts his logging schedule by an hour ... twice a year ...
when DST starts or stops.

I'm just glad I don't have to worry about the distinctions among 
UTC, GMT, TAI, and UT1.

-- 
To email me, substitute nowhere->runbox, invalid->com.

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Matplotlib X-axis timezone trouble Peter Pearson <pkpearson@nowhere.invalid> - 2015-06-30 00:56 +0000
  Re: Matplotlib X-axis timezone trouble Laura Creighton <lac@openend.se> - 2015-06-30 04:03 +0200
    Re: Matplotlib X-axis timezone trouble Peter Pearson <pkpearson@nowhere.invalid> - 2015-06-30 04:57 +0000
  Re: Matplotlib X-axis timezone trouble Chris Angelico <rosuav@gmail.com> - 2015-06-30 12:11 +1000
    Re: Matplotlib X-axis timezone trouble Peter Pearson <pkpearson@nowhere.invalid> - 2015-06-30 04:49 +0000
      Re: Matplotlib X-axis timezone trouble Chris Angelico <rosuav@gmail.com> - 2015-06-30 17:01 +1000
        Re: Matplotlib X-axis timezone trouble Peter Pearson <pkpearson@nowhere.invalid> - 2015-06-30 16:42 +0000
          Re: Matplotlib X-axis timezone trouble Chris Angelico <rosuav@gmail.com> - 2015-07-01 02:55 +1000
  Re: Matplotlib X-axis timezone trouble Peter Pearson <pkpearson@nowhere.invalid> - 2015-07-01 05:50 +0000
    Re: Matplotlib X-axis timezone trouble Chris Angelico <rosuav@gmail.com> - 2015-07-01 17:15 +1000
      Datetime timezone trouble (was: Matplotlib X-axis timezone trouble) Peter Pearson <pkpearson@nowhere.invalid> - 2015-07-01 16:36 +0000
        Re: Datetime timezone trouble (was: Matplotlib X-axis timezone trouble) Ian Kelly <ian.g.kelly@gmail.com> - 2015-07-01 10:55 -0600
          Re: Datetime timezone trouble (was: Matplotlib X-axis timezone trouble) Peter Pearson <pkpearson@nowhere.invalid> - 2015-07-01 19:09 +0000
        Re: Datetime timezone trouble (was: Matplotlib X-axis timezone trouble) Chris Angelico <rosuav@gmail.com> - 2015-07-02 03:08 +1000
  Re: Matplotlib X-axis timezone trouble Akira Li <4kir4.1i@gmail.com> - 2015-07-04 07:29 +0300
    Re: Matplotlib X-axis timezone trouble [SOLVED] Peter Pearson <pkpearson@nowhere.invalid> - 2015-07-04 17:37 +0000
  Re: Matplotlib X-axis timezone trouble Tony the Tiger <tony@tiger.invalid> - 2015-07-09 19:50 +0000
    Re: Matplotlib X-axis timezone trouble Peter Pearson <pkpearson@nowhere.invalid> - 2015-07-10 16:15 +0000

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