c'mon paul. a person switches to 12 hours of light, 12 hours of dark WHENever HE wants the plant to bloom. get it?
you can veg ( keep it vegative stage) as long as you want to. no buds will form durin this time.
when you feel the plant is large / ready enough for the lightswitch a.k.a Bloomforce you simply cut back on light hours . after the plant is left in bloom mode it will slowly start forming BUDS. this usually occurs after 2 weeks give or take.
you can also grow a plant with 12/12 lighting from start if this complicated lightschedule confuses you. but THEN you'll get much smaller plants and buds.
anywho let me break it down.
24, 20, 18,16 hours of light a day is to trick the plant that its summer. do that until you think the plant is big enough to hold fruit (buds)
switch to 12 hours of light a day to trick the plant that winter is coming. tha plant will then begin to produce pistils and buds so the male plant can pollinate it, and it can live on through the seeds it will produce as all weeds do. live to survive.
but you do not want a male pollinating you shit cause you want seedfree buds.
if none of us helped you figure it out, read a book or something.
i cant explain it easier