wouldn't it be uncontrolled when the tower was out of operation according to the AFD ( certain times at night) but if the AFD said that the tower was supposed to be open and no one was answering then it is still controlled and you need a clearence? Hard choice and a good interview question. would you land on a runway a night in a full moon with no runway lights because the controller forgot to turn them on before he left? sure you can see the runway just fine but no lights means you can't land.