m0useanswered grow question 3 years ago I'd say a week and half maybe.
Your time to harvest will depend on your trichomes, 90% cloudy and 10% amber is what I like. Some people prefer more amber upwards of 30%. more amber = more couch lock type of high.
another good indicator of when to harvest is your pistils and leaves. There will be less and less fresh white pistils and and more dry pistils. The fan leaves will also start to fade a bit when the plants entering its end of life despite there being enough nutrients. So when you notice the pistils are mostly brown and and trichomes are mostly cloudy with some or no amber, start your flush.
This cart is helpful in identifying.
https://www.royalqueenseeds.com/img/cms/Harvest%20Trichomes%20desktop%20EN.jpg
best of luck