In a DatetimeIndex using a non-static timezone over a time range that crosses the DST line, the time shifts around

[ijmcf]

For example:

dr = pandas.date_range('03/06/2012 00:00', periods=25, freq='W-FRI', tz='US/Eastern')
print dr
<class 'pandas.tseries.index.DatetimeIndex'>
[2012-03-09 00:00:00, ..., 2012-08-24 01:00:00]
Length: 25, Freq: W-FRI, Timezone: US/Eastern

This is midnight at the start, but 1am at the end. Shouldn't it be midnight all along, regardless of DST?

[wesm]

Yeah, it should be. Thanks for pointing it out

[wesm]

Fixed this one too

[ijmcf]

I found an instance where this bug is still occurring:

pandas.date_range('2012-11-02', periods=10, tz=pytz.timezone('US/Eastern'))

<class 'pandas.tseries.index.DatetimeIndex'>
[2012-11-02 00:00:00, ..., 2012-11-10 23:00:00]
Length: 10, Freq: D, Timezone: US/Eastern

[wesm]

thanks, reopened the issue

[wesm]

Fixed in git master