Pistils colour change

Hey guys roughly 6 weeks into flower and pistils starting to change brown, just wondering is there a rough timeline as to when she could be done or ive got a feeling could be quite strain dependant seeing as peoole go off trichs as such. Cheers guys

Pistols turn brown/red from a bunch of reasons, like heat, wind, ect. Look up the strain you are growing if it's not bag seed. If it is, look indica/sativa comparisons of Leaf wideness to get a rough estimate if youa re in the 9-10week zone or 11-14week zone. Use loop or handheld 50-100x scope to look for 100% cloudy