Html::convDateTime PHP Méthode

    static function convDateTime($time, $format = null)
    {
        if (is_null($time) || $time == 'NULL') {
            return NULL;
        }
        return self::convDate($time, $format) . ' ' . substr($time, 11, 5);
    }

 function displayValue($output_type, $row)
 {
     if (isset($row[$this->name]) && $row[$this->name]) {
         return Html::convDateTime($row[$this->name]);
     }
     return '';
 }