ok.

It is a personal choice for light times, but if you grow out doors you will notice that within 3 weeks after summer solsis your plants begin to flower and light times are 16 sunlight 8 dark and only period of 45 min is less in total light from summer solsis. It is not geneticaly programed you have to do 12/12 the plant senses the decrease in light time and winter is comming. greensman.com explains this very well.