Go forth and get Date::Calc or you could to more work something like this.

$start = time();
... time passes
$stop = time();
$stop - $start = $seconds_elapsed;
# bunch of seconds in a minute, minutes in an hour code
...
[download]

Update
Holy Stereo Farts!
above is wrong lasst assignment should be:

#seconds_elapsed = $stop - $start;
[download]

thx Albannach

Look ... other there ---> Date::Calc grab it and save brain cells.

mitd-Made in the Dark
'My favourite colour appears to be grey.'