= 60)
{
$offmins=$offmins - 40;
}
if(substr($offset,0,1)=="-")
{
$outhours=$thehours + $offhours;
$outmins=$themins + $offmins;
}
else
{
$outhours=$thehours - $offhours;
$outmins=$themins - $offmins;
}
//check minutes and modify hours and mins as required
if($outmins < 0) // must dectrement hours
if(substr($outmins,0,1)=="-")
{
$outhours=$outhours - 1;
$outmins=$outmins + 60;
}
elseif ($outmins >= 60)
{
$outhours=$outhours + 1;
$outmins=$outmins - 60;
}
//ensure '00' is reported instead of vblank
if ($outmins=="") { $outmins="00"; }
if (strlen($outmins)==1) { $outmins="0".$outmins ; }
//check hours and modify date as required
if($outhours < 0) // must dectrement days
{
$outhours=$outhours + 24;
$outdate = dateconvert($thedate, "-1");
}
elseif ($outhours >= 24)
{
$outhours=$outhours - 24;
$outdate = dateconvert($thedate, "1");
}
else
{
// $outdate=$thedate;
$outdate = dateconvert($thedate, "0");
}
if ($outhours=="") { $outhours="00"; }
if (strlen($outhours)==1) { $outhours="0".$outhours ; }
$outtime=$outhours.":".$outmins;
//cant return multiple values (date and time) so return an array that holds these instead.
return array ($outtime, $outdate);
}
?>