fenced in

Hi everyone, I'm a newbie to raising chickens & also a newbie to East Tennessee. We just moved here a little over 3 months ago from Western New York. This will be our first time raising chickens. We have a rather unique set up in our backyard. It's fully fenced & then it's separated into 2 areas...

how long do I need to keep them in the coop so they will come back inside at night ?? Oh btw they like the new feeders and the big girl coop. Oh and that cockerel that is not yet 8 weeks is crowing like mad!