pandas.Series.dt.isocalendar#

Series.dt.isocalendar()[source]#

Calculate year, week, and day according to the ISO 8601 standard.

New in version 1.1.0.

Returns

DataFrame: With columns year, week and day.

See also

Timestamp.isocalendar: Function return a 3-tuple containing ISO year, week number, and weekday for the given Timestamp object.
datetime.date.isocalendar: Return a named tuple object with three components: year, week and weekday.

Examples

>>> ser = pd.to_datetime(pd.Series(["2010-01-01", pd.NaT]))
>>> ser.dt.isocalendar()
   year  week  day
0  2009    53     5
1  <NA>  <NA>  <NA>
>>> ser.dt.isocalendar().week
0      53
1    <NA>
Name: week, dtype: UInt32