go to walmart and buy a vacation timer. they are only around 5 or 6 bucks and they ensure a steady light schedule for your plants. why worry about turning it on and off. i am a stoner and could not remember that shit anywyas. buy a timer man. you'll thank yourself later. you cant be leaving the light on like that when you are flowering them. light in the time period when its supposed to be dark is bad for them. it sorta shocks or stuns them. turning the lights back does not have to be done in any particular way. just turn it back. you'll be ok