Invert light/dark during a grow

If you want to do this with autoflowers, I'm pretty sure you'll be fine. Autos are phyto-neutral, which means they start flowering based on time alive and not the day getting longer or shorter, like photoperiod plants. I'm not sure how well doing something like that would go with photoperiod plants, though. Just my :text.02. I hope this helps. If I misunderstood your question, feel free to click on the airplane and message me. I'll help you get it sorted out.