pandas.Series.dt.is_quarter_end — pandas 2.2.3 documentation (original) (raw)

Series.dt.is_quarter_end[source]#

Indicator for whether the date is the last day of a quarter.

Returns:

is_quarter_endSeries or DatetimeIndex

The same type as the original data with boolean values. Series will have the same name and index. DatetimeIndex will have the same name.

Examples

This method is available on Series with datetime values under the .dt accessor, and directly on DatetimeIndex.

df = pd.DataFrame({'dates': pd.date_range("2017-03-30", ... periods=4)}) df.assign(quarter=df.dates.dt.quarter, ... is_quarter_end=df.dates.dt.is_quarter_end) dates quarter is_quarter_end 0 2017-03-30 1 False 1 2017-03-31 1 True 2 2017-04-01 2 False 3 2017-04-02 2 False

idx = pd.date_range('2017-03-30', periods=4) idx DatetimeIndex(['2017-03-30', '2017-03-31', '2017-04-01', '2017-04-02'], dtype='datetime64[ns]', freq='D')

idx.is_quarter_end array([False, True, False, False])