How to override datepicker configuration? – RightPress Support

For pre-2.3 versions it is possible to do by using filter 'wccf_datepicker_config'. Here's the example how you can use it in your functions.php file:

add_filter('wccf_datepicker_config', 'change_datepicker_config');

function change_datepicker_config($config) {
    $new_config = array_merge($config, array(
        'changeMonth' => true,
        'changeYear' => true,
    ));
    return $new_config;
}

You can read more here about possible configurations.

Starting from 2.3 version there were quite a few changes related to date picker - we added time picker, date/time picker as well as changed the actual JavaScript library from jQuery UI Datepicker to another library called Datetimepicker:
https://xdsoft.net/jqplugins/datetimepicker/

Because of that, old configuration and old filter hook wccf_datepicker_config will no longer work (as stated in release notes).

You can familiarise yourself with the new date/time picker configuration options in the page above and use the following filter hooks to change any aspect of date/time pickers on your site:
wccf_datetimepicker_date_config
wccf_datetimepicker_time_config
wccf_datetimepicker_datetime_config
wccf_datetimepicker_locale

Here's the example of changing the minimal date:

add_filter('wccf_datetimepicker_datetime_config', 'wccf_datetimepicker_datetime_config_change');

function wccf_datetimepicker_datetime_config_change($config) {
    $new_config = array_merge($config, array(
        'minDate' => '+01/01/1970',
 ));

return $new_config;
}

Feel free to submit a support ticket to us if you have any questions.