don't give the plants 24 hours of dark. where in nature do you see that? nowhere.
the best you can do is to start lowering the light hours progressively...
lets say, if you are on 16/8, then go to 14/10 for a week, then to 12/12 for a month and then 10/22 for the rest of the cycle...
Indoor growers do a lot of things you don't see in nature