DatetimeIndex.daysinmonth The number of days in the month

DatetimeIndex.is_year_start Logical indicating if first day of year (defined by frequency)

DatetimeIndex.set_names(names, level=None, inplace=False)

DatetimeIndex.factorize(sort=False, na_sentinel=-1)

DatetimeIndex.snap(freq='S')

DatetimeIndex.get_values()

DatetimeIndex.order(return_indexer=False, ascending=True)

DatetimeIndex.quarter The quarter of the date

DatetimeIndex.asobject return object Index which contains boxed values this is an internal non-public

DatetimeIndex.strftime(date_format)