try running this script on your server:
<?php
echo date("Y-m-d H:i:s");
?>
that'll print out the current date on your server. then all you have to do is insert that into mysql. or.. you can just use a mysql timestamp.
btw, i see you're dutch.. so it might be better to use:
setlocale ("LC_TIME", "dutch");
$time = strftime("%d %b %Y %H:%M:%S");
echo $time;