is there a standard time period for flowering

Putting my girl into flowering shortly, but i have 4 seedlings growing so im going to have to split the room, just want to know if there is a rough time scale for flowering as im going to need the lights for my seedlings when they get bigger at some point. Looked in faq but couldnt find anything
Thanks
Baz

I'm guessing you don't know which strain you're growing? If so it's tough to say. If you're able to tell whether it's indica or sativa dominant by the leaves(wide for indica, skinny for sativa) then that will help. Many indicas take around 8 weeks, longer for sativas.

Yeah, around 8-12 weeks on average.

Ok thanks alot, im guessing from pictures of other peoples plants that mine is sativa as i have seen ones with alot wider leafs, thanks anyway, 8-12 weeks and im getting stoned! lol