if there was light leak's involved in the past, ( fixed now ) would that slow it down?2-3 weeks if you started before seeing signs of sex and you don't have any light leaks.
2-3 weeks usually unless your growing some landrace Sativa, that tends to flower only if it's over 8 weeks old IMHO.When am i going to be able to start seeing flowering, its a week into flowering i started it early, not seeing anything yet, not even a hair. when will i be able to?!