If you live in a country side then probably there are few chicken around. You know that towards winter days are getting shorter and so chicken becomes more lazy and lay less eggs. Jpitz31 have found that chicken are productive if they get 12 to 15 hours of daylight. So the only solution to keep those eggs coming is to give chicken that amount of light;
He took an AVR Atmega328 microcontroller and constructed a relay board with DS1307 RTC. All it does it keeps track of time and switches light when time comes. Control circuit is powered from 12V wet cell battery where voltage is regulated down to 5V which is acceptable to AVR. Actually I miss a light sensor here which could assist on deciding when to turn lights on. As you know each day is different and predefined turn on/off hours aren’t optimal as it would be with some real world input.