Different lines lay differently: length of day and food are prime to laying. If they slow down too much add a strong light to the run and coop to extend the hours. My three girls head into the coop right after the sun drops below the horizon. They are golden comets, which are a cross for high laying and in the summer I got six eggs a week from two, and 13 every two weeks from one. Each day each hen will lay at a later time, and after her day off, will go back to early in the morning and start the cycle again. It was not something to set a clock by though...usually about 45 minutes later, but sometimes 2 hours, or sometimes just 10 minutes.
They kept laying through the winter, rotating around laying for two days to not laying for two days, but all on a different schedule from one another. Some days I got no eggs, most days I got two, frequently only got one, and some days I got three. After not laying, however, the first eggs laid would be bigger, and sometimes they would be enormous! Way bigger than store bought extra large....
Finally, if the chickens do not get enough protein, they will not lay, too: 16% minimum for layers, I believe. If you use layer feed that is not an issue. I do not, so I have to pay attention to their forage... Bugs are good protein and Florida has no shortage!
