pandas.Series.to_period

Series.to_period(self, freq=None, copy=True) [source]

Convert Series from DatetimeIndex to PeriodIndex with desired frequency (inferred from index if not passed).

Parameters:	freq : str, default None Frequency associated with the PeriodIndex. copy : bool, default True Whether or not to return a copy.
Returns:	Series Series with index converted to PeriodIndex.