DatetimeIndex.tz_localize()

tz : string, pytz.timezone, dateutil.tz.tzfile or None

Time zone for time. Corresponding timestamps would be converted to time zone of the TimeSeries. None will remove timezone holding local time.

ambiguous : ?infer?, bool-ndarray, ?NaT?, default ?raise?

• ?infer? will attempt to infer fall dst-transition hours based on order
• bool-ndarray where True signifies a DST time, False signifies a non-DST time (note that this flag is only applicable for ambiguous times)
• ?NaT? will return NaT where there are ambiguous times
• ?raise? will raise an AmbiguousTimeError if there are ambiguous times

errors : ?raise?, ?coerce?, default ?raise?

• ?raise? will raise a NonExistentTimeError if a timestamp is not

  valid in the specified timezone (e.g. due to a transition from or to DST time)

• ?coerce? will return NaT if the timestamp can not be converted into the specified timezone

infer_dst : boolean, default False (DEPRECATED)

Attempt to infer fall dst-transition hours based on order

TypeError

If the DatetimeIndex is tz-aware and tz is not None.