Localizing Datepicker

I was not able to get the datepicker to use the language set in the WordPress General Settings.
After searching I found this thread, but it did not offer any valid solution as MB Frontend Submission v3.1.4 was installed. I resolved the issue by adding the following to my child-theme:

add_action( 'wp_print_footer_scripts', 'prefix_localize_jquery_ui_datepicker', 9 );
function prefix_localize_jquery_ui_datepicker() {
    if ( ! function_exists( 'wp_localize_jquery_ui_datepicker' ) ) {
        return;
    }
    wp_localize_jquery_ui_datepicker();
}

Hope this helps someone else having to search for a solution.