pandas.Series.dt.day_name — pandas 2.2.3 documentation (original) (raw)

Series.dt.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 ('en_US.utf8'). Use the commandlocale -a on your terminal on Unix systems to find your locale language code.

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')

Using the locale parameter you can set a different locale language, for example: idx.day_name(locale='pt_BR.utf8') will return day names in Brazilian Portuguese language.

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(locale='pt_BR.utf8') Index(['Segunda', 'Terça', 'Quarta'], dtype='object')