finishing time for my 3 ladies?

I know there is so many factors that determine when is the best time to harvest but I was wondering if anybody has grown these strains and if so how long did you leveve them flower for.

The 3 of them will be flowering 2months next week:

Dinafem White widow (pretty amber all over by week 7)
DNA LA woman (unbelievably crystaly)
Dutch Passion Euforia (my money maker )

I let my WW go a little over 9 weeks, although mine did get very amber until 8+ weeks.