They probably won't hit that corn until very late in the day.
As they realize the corn is always there, everyday, they will come to it earlier. They seem to know that other deer are beating them to it
When you hear the weatherman callin for snow, the deer will come earlier.
I have a backyard feeder and found that deer really come early when a snow storm is in the forcast.
Baiting is illegal in my state, but after observing deer at the backyard feeder, it almost seems like cheating. If its legal where you are, more power to you.