flowering time

i have some pineapple and would like to know how long do i flower? I have 30X lens. how long do i wait? is there a specific time per strain?

I have never grown that strian you can try to find some info in a strain guide or watch your tric's to turn amber with your lens
Good Luck

the main cola 100%? and just wait. dont want to flower to long, but anxious as hell