All chickens have a life cycle of eggs they produce. Some lady more than others, first it takes 25 hours for an egg to form beginning to end. So in most cases they will skip a day, but you have to take in all the circumstances of weather, stress, feed, enough daylight. So remember even your best top notch layers miss a day ever so often. Once the egg is layer, it starts all over again, an egg is definitely under appreciated. So don't get discouraged, they also take breaks during extreme weather, molting season, when new chickens enter the flock, so hang in there with your girls.
