Php time question

[noenergy]

Hay guys
I have a litel problem in a php script
i have a time like 12:11:12(h:m:s)
and i want to show it up in a table with +1h

how i can do it?

i have used

while($row = mssql_fetch_array($query))
{
$time = $row['time']; // H:M:S
}
$stime = $time+(01*00*00); // H:M:S + 01:00:00
echo $stime ;

but its shows 14 -.- way ever