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Re: Matplotlib X-axis timezone trouble

From Laura Creighton <lac@openend.se>
Subject Re: Matplotlib X-axis timezone trouble
References <cve7ppFk1viU1@mid.individual.net>
Date 2015-06-30 04:03 +0200
Newsgroups comp.lang.python
Message-ID <mailman.178.1435629849.3674.python-list@python.org> (permalink)

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In a message of 30 Jun 2015 00:56:26 +0000, Peter Pearson writes:
>The following code produces a plot with a line running from (9:30, 0) to
>(10:30, 1), not from (8:30, 0) to (9:30, 1) as I desire.
>
>If I use timezone None instead of pacific, the plot is as desired, but
>of course that doesn't solve the general problem of which this is a
>much-reduced example.
>
>If I use timezone US/Central, I get the same (bad) plot.
>
>import matplotlib.pyplot as plt
>import datetime
>import pytz
>pacific = pytz.timezone("US/Pacific")
>fig = plt.figure()
>plt.plot([datetime.datetime(2014, 10, 7, 8, 30, tzinfo=pacific),
>          datetime.datetime(2014, 10, 7, 9, 30, tzinfo=pacific)],
>         [0,1], marker="o", color="green")
>fig.autofmt_xdate()
>plt.show()
>
>Does anybody know why this shift is occurring?  Is Matplotlib
>confused about what timezone to use in labeling the axis?  How
>would I tell it what timezone to use (preferably explicitly in
>the code, not in matplotlibrc)?
>
>Thanks.
>
>-- 
>To email me, substitute nowhere->runbox, invalid->com.
>-- 
>https://mail.python.org/mailman/listinfo/python-list


I know that your problem is that all your times are in UTC, even
though you do not want this.  I had this too.  I forget what I did.

I do not know if this solution from stackoverflow.com will work for
you -- it is definitely different from what I did, but that does
not in any way make it wrong.  Try and see?  and report back?

http://stackoverflow.com/questions/4485607/matplotlib-plot-date-keeping-times-in-utc-even-with-custom-timezone

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Thread

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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