Each female has a specific breeding season. I am not sure what the "official" season is, but every leo is different. Some people have colonies that have different seasons than others. Like Michael E. (420 Geckos), his lay later in the year (if I'm thinking correctly) than other people's colonies. So when most are turning the incubator off, he's still got eggs being laid and incubating. It just depends on the geckos.