Issues-528: Updated the format of Discussion Date

Author: atelomycterus

vanilla/applications/vanilla/views/discussion/discussion.php

@@ -4,6 +4,8 @@
  * @license http://www.opensource.org/licenses/gpl-2.0.php GPLv2
  */
 
+use Vanilla\Formatting\DateTimeFormatter;
+
 if (!defined('APPLICATION')) {
     exit();
 }
@@ -51,7 +53,8 @@
             </div>
             <div class="Meta DiscussionMeta">
             <span class="MItem DateCreated">
-                <?php  echo Gdn_Format::date($Discussion->DateInserted, 'html'); ?>
+                <?php echo Gdn::getContainer()->get(DateTimeFormatter::class)->formatDate($Discussion->DateInserted, true,
+                    DateTimeFormatter::FORCE_FULL_FORMAT); ?>
             </span>
                 <?php
                 echo dateUpdated($Discussion, ['<span class="MItem">', '</span>']);