I have 6 pullets born in mid-August. I was reading "Storey's Guide to Raising Chickens" and it mentions "Pullets hatched from August through March need controlled lighting to delay maturity" I then went online and found this article http://www.umext.maine.edu/onlinepubs/htmpubs/2227.htm Summarizing, it says to : "...Lets assume that you hatched chicks on October 1, 2008. Consult an almanac, or the U.S. Naval Observatory Web site1 to determine how much natural daylight there will be 22 weeks from the date of hatchin this case, on March 4, 2009. The day length in Bangor, Maine is approximately 11 hours and 20 minutes for March 4, when the birds will be 22 weeks old. Add 5 1/2 hours to that figure,* for a total of 16 hours and 50 minutes in this case, and provide this amount of light daily for the chicks first week. Then reduce the total light period by 15 minutes each week through the growing period. The artificial light period must overlap both ends of the natural light period so the bird does not realize that the days are actually increasing during the latter part of the growing period. By the time the pullets reach 22 weeks of age, you will have gradually decreased the period of artificial light to 11 hours and 20 minutes, which will now equal natural day length. The pullets will be finished with the artificial light and on a natural day length that is increasing. At that time, add 30 minutes each week until 16 hours of daily light is reached. Hold this light constant for as long as you keep the birds..." I already created a huge spreadsheet calculating the times I need to set a light to, but I wonder if anybody else has done this to their "off-season" pullets? thanks!!!