Change post_time format string

inc/instance-config.php

@@ -107,6 +107,9 @@ $config['secure_trip_salt'] = 'ODQ2NDM0ODlmMmRhNzk2M2EyNjJlOW';
 //Banners
 $config['url_banner'] = '/banners.php';
 
+//Date format
+$config['post_date'] = '%F (%a) %T';
+
 /*
  * Some users are having trouble posting when this is on,
  * with the message 'Your request looks automated; Post discarded.'