[Vertax]

А так не проще:

onEnterFrame = function ()
{
	currDate = new Date();
	HOUR._rotation = ((currDate.getHours() > 11)?currDate.getHours():currDate.getHours()-12) * 30 + currDate.getMinutes() * 0.5;
	MIN._rotation = currDate.getMinutes() * 6 + currDate.getSeconds() * 0.1;
	SEC._rotation = currDate.getSeconds() * 6;
}