pandas.DatetimeIndex.day_name#

DatetimeIndex.day_name(*args, **kwargs)[source]#

Return the day names with specified locale.

Parameters
localestr, optional

Locale determining the language in which to return the day name. Default is English locale.

Returns
Series or Index

Series or Index of day names.

Examples

>>> s = pd.Series(pd.date_range(start='2018-01-01', freq='D', periods=3))
>>> s
0   2018-01-01
1   2018-01-02
2   2018-01-03
dtype: datetime64[ns]
>>> s.dt.day_name()
0       Monday
1      Tuesday
2    Wednesday
dtype: object
>>> idx = pd.date_range(start='2018-01-01', freq='D', periods=3)
>>> idx
DatetimeIndex(['2018-01-01', '2018-01-02', '2018-01-03'],
              dtype='datetime64[ns]', freq='D')
>>> idx.day_name()
Index(['Monday', 'Tuesday', 'Wednesday'], dtype='object')