DatetimeIndex.groupby(values)

DatetimeIndex.all(other=None)

DatetimeIndex.get_loc(key, method=None, tolerance=None)

DatetimeIndex.get_slice_bound(label, side, kind)

DatetimeIndex.drop(labels, errors='raise')

DatetimeIndex.nunique(dropna=True)

DatetimeIndex.holds_integer()

DatetimeIndex.itemsize return the size of the dtype of the item of the underlying data

DatetimeIndex.value_counts(normalize=False, sort=True, ascending=False, bins=None, dropna=True)

DatetimeIndex.any(other=None)