Tilføj minutter til tid

Kode 

<?php
// http://php.net/manual/en/datetime.add.php
$date = new DateTime("2012-01-01 08:10:00");
$date->add(new DateInterval('PT0H50M30S'));
echo $date->format('Y-m-d  H:i:s') . "\n";
?>

PHP kode 

 $dt = new DateTime("2012-01-01 08:10:00");
 $dt->modify("+50 minutes");
 echo $dt->format("H:i");

PHP kode 

 $snart = time() + (50 * 60);
 echo date("H:i", $snart);

PHP kode 

 $tid = mktime(date("H"), (date("i") + 50), date("s"), date("n"), date("j"), date("Y"));
 
 echo date("d-m-Y H:i:s", $tid);