- date_create: documentation ( source)
- date: documentation ( source)
- date_format: documentation ( source)
- date_modify: documentation ( source)
<?php
$date1 = date("d-m-Y h:i:s");
$date=date_create($date1);
date_modify($date,"+30 minutes");
echo date_format($date,"Y-m-d h:i:s");
?>