when does flowering time actually begin

Hey all
i have a question, i have my 1st grow, it was started inside in april and put outside in may, it has been growing nicely, it started having flowers in 2-3 week of july, i figured it would be ready to got by 1-2 week in oct. but i got curious and looked up lenght of daylight and it seems that here in mass, the daylight hours didnt get to 12hrs or less till 1st week in sept. i have white berry plants and flowering time is 55-60 days. which time should i use as a starting point for flowering, the actual day flowers started to grow, or when the day time was 12hours.

OUTSIDE GROWING can not be held under such strict guidelines... mostplants that I have had the honor of seeing outside... do not mature until NOVEMBER.... many growers pick early because of..

stress
liabilty - thieves and cops
RAIN/SNOW
did I mention stress?

cheers

picture please

i grew this plant outdie in aug and its sept now the first 3 pics were on sept 11 and the last was today

thanks for the advice, i will put pics on when i get home so yall can see where im at, my b-day is in oct and i was hopeing to celebrate it with a lil of my 1st grow ever, but i guess that wont happen now, thanks again all, PS i will put a few pics on tonight.