pandas.PeriodIndex.day_of_year

property PeriodIndex.day_of_year

The ordinal day of the year.

Examples

>>> idx = pd.PeriodIndex(["2023-01-10", "2023-02-01", "2023-03-01"], freq="D")
>>> idx.dayofyear
Index([10, 32, 60], dtype='int64')

>>> idx = pd.PeriodIndex(["2023", "2024", "2025"], freq="Y")
>>> idx
PeriodIndex(['2023', '2024', '2025'], dtype='period[Y-DEC]')
>>> idx.dayofyear
Index([365, 366, 365], dtype='int64')