Hermies and iregular lighting times?

Hi Group, first time poster, some time reader, lurker, searcher. Sorry in advance if my query is in the history, my search did not find it.

Q please: I've gathered that light "leakage" and unscheduled "lights on" times will make the girls Herm out.... But is this important for veggiing times or mainly just the big Flower Power time?

Thanks much, Doc Oc. :weedpoke:

It's only a real risk during flowering. During vegetative growth the lighting can be a bit irregular without problem, so long as you keep the days long enough to prevent initiating flowering, anything from 24/0 to 15/9 should be okay.

Thank you!
:woohoo:
Happy New Year! (assuming other parts of the worlks have New Year too)