I pretty much feed when ever I find time. My feeding days are on Tuesdays and feeding a few dozen snakes with feeders ranging from rat pup to several pounds, it takes some time to thaw them out and get them all ready.
I have one snake that I think likes to eat at night the most. But, she still eats when ever she is given food. Even more so right now thats she has came off of a long fast.
I have heard of peoples snakes only eating at night.