pandas.DatetimeIndex.day_name

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

Return the day names with specified locale.

Parameters

locale:str, 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')