Eduardokum\LaravelBoleto\Util::convertDateToSingleYear PHP Method

    public static function convertDateToSingleYear($date)
    {
        $day = substr($date, 0, 2);
        $month = substr($date, 2, 2);
        $year = substr($date, 6, 2);
        return $day . $month . $year;
    }

 public function convertDate($date)
 {
     return Util::convertDateToSingleYear($date);
 }