I find mine hatch on day 20 if I count day 1 as the next day .
I tried a dry hatch in my cabinet styled incubator ,
I was expecting it not to work even tho I had successfully done them in a king suro , I had 27 hatch from 31 fertile eggs the last one I had to help out as it got to dry with the other chicks already taken out it was from an egg I had grabbed out of a cool room to add extra eggs in . The humidity average 20% thru the whole hatch.