I am getting tired of manually managing my chicken farm, so I have invented this automated design:
The step from eggs to chicken is easy, and it's even simple to make it happen in batches - every time dispensers are filled using hoppers, a comparator activates clock until they're empty again.
What I need is to set up is a timeout that activates 20 minutes after the dispensers have stopped shooting. A minecraft day has 20 minutes, which brings the idea of daylight sensor. But note that timeout may start any time in the day, not the same time every day.
And please, I need something that is not bigger than my house.