$return = false;

        $start_time = '21:00';
        $end_time   = '09:00';

        $now_date   = strtotime(date('d-m-Y H:i'));

        $start_date = date('d-m-Y H:i', strtotime('21-05-2019 '.$start_time));
        $next_date  = date('d-m-Y H:i', strtotime('22-05-2019 '.$end_time));

        $end_date   = date('d-m-Y H:i', strtotime('30-05-2019'.$end_time));

        if($now_date <= strtotime($end_date) && ($now_date > strtotime($start_date) && $now_date <= strtotime($next_date)))
        {
            $return = 'true';
        }
        echo $return;
        die();