how to change to flowering

im in my 8th week and there about 5 ft high and is time to flower so my question is how should i change the light cycle to 12/12 without hurting them do i leave them in the dark for 24 hrs before turning the light or change the cycle right away.

holy shit 5 feet....they are going to be huge! i flowered mine at like 32" and they are at like 7' and they aren't done yet. but yea you can just switch it.

Holy crap man 5 foot? I hope you got a 12 foot ceiling, have you bent them over at all cuz you probably will need to. Yes as the other man said you can just change the light to 12/12 its not going to shock them or anyhting.

dam so my roof is about 10 ft high is that ok also how do i bend it using what

It's called Low Stress Training (LST). This is the section from the Grow FAQ that explains how to do it. I skimmed it and it looks pretty useful
https://www.rollitup.org/view.php?pg=faq&cmd=category&id=110

At 5 feet tall I would read it and start the training today

I'm a little bit confused on stages. Is there certain intervals I should change it at, or just when I want.

So say I let my plant grow to 30 inches and the switch to the 12/12 cycle, then that put it in to flowering?
(I havent actually grown anything yet just getting knowledge of the process before I start)

any pictures of these 5ft monsters?

5 foot.... holy moly ... get pics posted....let us see

ill try getting pics but wont promise. im a start training them thank yall

i got another question how many days does it take to start seeing the sexes ones yo change to flower

sex should be visible by now....... just look for tha little hairs(pistils)