I use the datePicker documented here.
However, no direct option allows to change the language, English by default.
I find a the documentation of the widget provided without angular directive, and it provides a nice way to achieve it:
http://bootstrap-datepicker.readthedocs.org/en/latest/i18n.html
Is there an easy way, avoiding to tweak the original directive's source code, to change it?
If you are using the DatePicker form angular-ui simply add the localized js file in the header of your page. An example would be :
You can see a working plunker here
You can find locale js files latest version with this link.
https://cdnjs.com/libraries/angular-i18n
Also, if you want to translate datepicker action buttons(like 'Close') globaly, you can add this code for global config.
First, you have to load your locales (get them here) script after angular in index.html:
After that, the days and months are localised but you need to translate the buttons by yourself adding parameters inside the datepicker input tag: