$startTime=strtotime($ourClass["OurClass"]["starting_time"]);
$selected=array(
"year"=>date("Y",$startTime),
"month"=>date("m",$startTime),
"day"=>date("d",$startTime),
"hour"=>date("h",$startTime),
"minute"=>date("i",$startTime),
"meridian"=>date("a",$startTime),
);
echo $this->Form->input('starting_time',
array("selected"=>$selected)
);
Read more: http://feeds.dzone.com/~r/dzone/snippets/~3/HULYyILDQjk/12261