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# pandas.Series.dt.days_in_month

Series.dt.days_in_month

  The number of days in the month.

  This attribute returns the total number of days in the month for each datetime value in the Series/Index. The value depends on the month and whether the year is a leap year (e.g., February has 29 days in a leap year).

  See also

  `Series.dt.day`

    Return the day of the month.

  `Series.dt.is_month_end`

    Return a boolean indicating if the date is the last day of the month.

  `Series.dt.is_month_start`

    Return a boolean indicating if the date is the first day of the month.

  `Series.dt.month`

    Return the month as January=1 through December=12.

  Examples

      >>> s = pd.Series(["1/1/2020 10:00:00+00:00", "2/1/2020 11:00:00+00:00"])
      >>> s = pd.to_datetime(s)
      >>> s
      0   2020-01-01 10:00:00+00:00
      1   2020-02-01 11:00:00+00:00
      dtype: datetime64[us, UTC]
      >>> s.dt.days_in_month
      0    31
      1    29
      dtype: int32