If you want to keep that light cycle that's fine. If you want to flip over to 12/12 that's also fine. That plant is just finally at an age where it can readily flower but not because it has to. I think from your other posts I remember you saying it's a photo strain so this should hold true.
Also is that just outside under lights for supplemental purposes?? If what you say is true you live in a country where it's not legal, I'm guessing Egypt or Sudan. Only reason I ask is you seem to be risking a lot having outside. I think I saw it outside in the ground in another post you had(??) But must have potted it. Your balls must be as big as the buds you want friend haha.