Flowering time starts at light change or bud forming?

[M.B.A.]

how long does it take for buds to form?

M.B.A. Reviewed by M.B.A. on 12-04-2007. Flowering time starts at light change or bud forming? Like the title says, I was wondering if advertised flowering times are starting from 12/12 light switch or when buds begin to form (about two weeks later)? Curious to find if I've been rushing plants. Rating: 5