Hi shellerooski! When I did night shift, I did it midnight to midnight. Here was the reason why. sometimes when I was soooo tired, I either didn't have time to eat when I woke up in the afternoon, or wasn't hungry. But usually I did want something to eat just before laying down in the morning. I slept better with a full tummy. I knew my calories started again at midnight, and the first part of the shift went so fast anyway. I think it still boils down to calories in/out. Night shift is hard on the body no matter what, and I feel for you! Good luck.