Illuminate\Database\Connection::getElapsedTime PHP Method

    protected function getElapsedTime($start)
    {
        return round((microtime(true) - $start) * 1000, 2);
    }

 /**
  * Get the elapsed time since a given starting point.
  *
  * @param  int    $start
  * @return float
  */
 public function getElapsedTime($start)
 {
     return parent::getElapsedTime($start);
 }