Boolean indicator if the date belongs to a leap year.
A leap year is a year, which has 366 days (instead of 365) including 29th of February as an intercalary day. Leap years are years which are multiples of four with the exception of years divisible by 100 but not by 400.
Booleans indicating if dates belong to a leap year.
Examples
This method is available on Series with datetime values under the .dt accessor, and directly on DatetimeIndex.
>>> idx = pd.date_range("2012-01-01", "2015-01-01", freq="YE")
>>> idx
DatetimeIndex(['2012-12-31', '2013-12-31', '2014-12-31'],
dtype='datetime64[ns]', freq='YE-DEC')
>>> idx.is_leap_year
array([ True, False, False])
>>> dates_series = pd.Series(idx) >>> dates_series 0 2012-12-31 1 2013-12-31 2 2014-12-31 dtype: datetime64[ns] >>> dates_series.dt.is_leap_year 0 True 1 False 2 False dtype: bool
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