WhenOpenDay($process_limit_date, $delay1, '-'); //Def de Alarm2 $date_alarm2_final = $nf->WhenOpenDay($process_limit_date, $delay2); echo 'process_limit_date:' . $process_limit_date . "\r\n"; echo 'date_alarm1_final:' . $date_alarm1_final . "\r\n"; echo 'date_alarm2_final:' . $date_alarm2_final . "\r\n";