Issues with time zones

[hrzn]

We seem to have issues with timezone aware time series, due to: pydata/xarray#1490
Would be nice to see if we can do something about it.

Description written by @Bugdup

DatetimeIndex with timezone information (e.g. DatetimeIndex(['2018-10-26 13:00:00-05:30'], dtype='datetime64[ns, pytz.FixedOffset(-330]',…)) are processed in xarray with numpy engine which is not timezone aware.

The index is then casted as object and it creates issues when plotting because the time scale is not considered as correct by pyplot.

The issue is being tracked by xarray there:Resample not working when time coordinate is timezone aware · Issue #1490 · pydata/xarray , but it does not seem to be moving a lot.

Maybe removing the timezone information as part of a quickfix and reintroducing it when xarray solved it?