Matplotlib X-axis timezone trouble
Peter Pearson
pkpearson at nowhere.invalid
Mon Jun 29 20:56:26 EDT 2015
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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