In 0.10.1, Timestamp constructor seems to have an issue localizing datetime.date objects. ``` In [19]: import datetime In [20]: datetime.date(2013, 3, 9) Out[20]: datetime.date(2013, 3, 9) In [21]: d=datetime.date(2013, 3, 9) In [22]: Timestamp(d, tz='US/Pacific') == Timestamp(d).tz_localize('US/Pacific') Out[22]: False In [23]: Timestamp(d, tz='US/Pacific') Out[23]: <Timestamp: 2013-03-08 16:00:00-0800 PST, tz=US/Pacific> ```