how long do i.....

have to wait for my bud to start coming in, if i put it on 12/12 cycle then wouldnt that make it go into budding stage? and if so how long do i have to wait from when it first sprouts, n idc if its only 1 bowl or not, just wanting to have a taste of some homegrown, i will be growing it inside and using it from one of my GOOOD bag weed seeds

Short answer, about 90 days.
Long answer, it depends on the strain you are growing, and how long you leave it in the vegetative stage.

sloooow down buddy.