Time format

[dips_007]

hi how do change a number in to time so that i can add time together.

eg i have a text box user enters a time 13.00 then i need php code to add 1h 40 to it so that it is 14.40 .

[DigitalExpl0it]

look at

http://us2.php.net/date

and

http://us2.php.net/manual/en/function.mktime.php