...= time();
$exp = ($_SESSION['thisismytime'] + "10800");
$expiring = ($exp - $mytime);
while ($done != 'yes')
{
$hours = ($expiring/(60*60));
$M = explode('.', $hours);
$M[1] = ".$M[1]";
$min = (($M[1])*(60));
$S = explode('.', $min);
$S[1] = ".$S[1]"...