gREEn7o0answered grow question 2 years ago As long as you are getting 12 hours of dark for flower it doesn't matter what time of day it is happening. Since your plants only know the time of day based on your light cycle.
Personally I run my lights during night time to help with temperature. 7pm-7am for flower
7pm-1pm for veg
That said, I could flower 8pm-8am(2000-0800), 9am-9pm (0900-2100) and it would make no difference, as long as it gets its 12 hours of dark for flower.