I beg to differ Zandor, a plant measures where it is in the budding stage by the length of darkness it recieves not the length of light, if that is what you said. Just leave your light on for 24 hours. The plant will not go hermie on you. The worst thing that will happen is you will get a couple two female seeds. Hormones are released at night which is what regulates budding.
I prefer my lights on at night too due to elevated temps during the day.
One love
c