timestamps.py

In [1]: import pandas as pd

In [2]: ts = pd.Timestamp('2000-01-01 00:00:00')

In [3]: ts
Out[3]: Timestamp('2000-01-01 00:00:00')

In [4]: ts.hour
Out[4]: 0

In [5]: ts.value
Out[5]: 946684800000000000

In [6]: ts_nyc = ts.tz_localize('America/New_York')

In [7]: ts_nyc
Out[7]: Timestamp('2000-01-01 00:00:00-0500', tz='America/New_York')

In [8]: ts_nyc.hour
Out[8]: 0

In [9]: ts_nyc.value
Out[9]: 946702800000000000