How long does it take to show sex?

I'm 3 weeks into 12/12 from seed... Any help would be great.. I'm ready to start another grow once my plant shows..

males will take from 1-3 weeks generally depending on how mature the plant was when put into 12/12 and females will generally take from 2-4 weeks, but it all depends on the conditions

ive been in 12/12 since it germed and was put in the soil.. That was 3 weeks and a day ago..

ive been 4weeks 5 day 12/12 from seed and mine still havent either it takes time but you just have to have patience