Bootstrap Date Picker - Switch language

Hello Prashant,
As outlined in Bootstrap Datepicker documentation (I18N), you can use the language property to change a locale.

When the Bootstrap Datepicker is used as a custom survey question editor, you can handle this when you register a custom editor as follows:

• Load a JavaScript library which contains required translations for Bootstrap Datepicker:

HTML
<script src="bootstrap-datepicker.XX.js" charset="UTF-8"></script>

• In a custom widget's afterRender function, set the language option using the current survey's locale setting:

JavaScript
 afterRender: function (question, el) {
      var $el = $(el).is(".widget-datepicker")
        ? $(el)
        : $(el).find(".widget-datepicker");
      const options = {
        ...
        language: question.survey.locale
};

• Now, it is sufficient to specify the survey.locale property. A Bootstrap Datepicker will be translated as well.

Please test this example: https://plnkr.co/edit/dJhEasPV9907nBQq.

Let me know if you have any questions or require further assistance.