How long to flower

Does the 8 week flowering time include the time it takes for the plants to show sex???

Basically are they generally done 8 weeks from when you switch to 12/12 or 8 weeks from when the plants show????

Its Just Guidelines Can Take Longer Depends if Your Force Flowering Or If You Wait For Them To Show Sex

It's 8 weeks from when you first notice budding. It takes a little while after switching to 12/12, as much as a week or two. Pistils on my current ladies started popping up within 5 days after I changed the photoperiod.