public static function getCommentDate($dt)
 {
     $date = new DateTime($dt);
     $day = $date->format('d');
     $months = UserFunctions::months();
     $month = $months[intval($date->format('m'))];
     $year = $date->format('Y');
     $time = $date->format('H:i:s');
     $new_dt = $day . " " . $month . " " . $year . " " . Yii::t('trans', 'at') . " " . $time;
     return $new_dt;
 }