So what do people who work do? If lights out is 10pm (odds are hes in "bed" by 7-8) thats a 6pm cut off, thats a hard target for us 9-5 people. Ive had good luck feeding mine before my supper for the last 20 years. I give them a snack in the morning before i leave (caterpillar or a few meal worms).Generally speaking, about an hour or 2 after lights on in the morning. You should definitely not feed within 4 hours of lights out at night because they need time (and heat) to process their meal. If they can't do that, their lunch sits in their belly and can cause a lot of problems. Good luck!