change the data format

Please share the code that you used, to add start and end date in course detail column.

By default we don't show the end date in course details. So I was asking about the code that you used to show the end date in course details, so that I can modify it accordingly. Nevermind, use this code instead: add_filter('wplms_course_details_widget','hk_custom_wplms_course_details_widget'); function hk_custom_wplms_course_details_widget($course_details){   global $post;   $end_date=get_post_meta($post->ID,'vibe_end_date',true);   if(isset($end_date))     $course_details['end_date']='<li>END DATE : '.date_i18n( get_option( 'date_format' ), strtotime($end_date)).'</li>';   return $course_details; } After using this code just go to settings->general->Date Format: and choose the appropriate date format that you want.  

Refer: https://wplms.io/support/knowledge-base/show-start-date-instead-of-remaining-time-in-course/

To change the date format it is in settings->general->date format.