My cat starts hassling me at sunrise for food, everyday. He will scratch at my door and meow until he is fed.
I have had him for a year (he was a kitten when I got him) and he's always been this way. I tried shutting him in the living room overnight but he was whining all night.
I don't think it's just food either - sometimes I will get up and feed him early, and he will eat his food and then return doing the same thing.