but instead, i decided to make my field text, with its value being the date (set by php) accoring to mk_time i think so i can manipulate it easily afterwards to my linking.
Look at php.net: http://www.php.net/manual/en/function.mktime.php
edited - pointed to gm_date and said mk_time now correceted
You might want to add the date to the database as:
$hour, $minute, $second, $month, $day, $year for the date (includes time as well)
Also, make it so if they are empty, they are 0 - as im not sure how the function handles it being empty.
The use the explode() function when back off the database to get $hour etc by spiltting it by the ", " es
Also, this means easy manipulation.