I guess I'm not understanding the time thing? why worry about the time? hens don't have a clock they only go by days...I slept for a couple hours at a time from midnight to 7 to his morning....lol Checked the bator about every two hours..... I really wanted to set them at midnight, but then realized I had to monitor for a couple hours after so we decided since they'd been sitting for 12 hours to go ahead and set at 10, that way I could go to bed at midnight....lol