12 outside 12 in. please help

so i have a few seeds and i was wondering what kind of result i would get if i just gave them 12 hours of sunlight everyday and then just brought them in the dark for 12 at night. im not sure if this will even work but some feed back would be appreciated.

should be ok, if the temos are warm enough for em to sprout. It has to be strict tho, and will be a pain in the ass. complete dark for 12.

but it should work, they grow until their ready to flower. check out the 12/12 from seed thread

yeah the seeds are pretty much all sprouted, ones lagging behind and one i planted about a week ago so its on its second set of leaves already. i can only keep one when they flower so i hope at least one of the four i have is a female. maybe if i get lucky ill break the rules. xD Also will this take all season until oct? or will they be done earlier if i use this method.