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.
>
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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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