what day of the year is it
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pandas.Period.dayofyear — pandas 2.2.3 documentation
pandas 2.2.3 documentation pandas.pydata.org · pandas-docs · stable pandas.Period.dayofyear# Period. dayofyear # Return the day of the year. This attribute returns the day of the year on which the particular date occurs. The return value ranges between 1 to 365 for regular years and 1 to 366 for leap years.