How far until harvest?

Hi, I made a post before . . https://www.rollitup.org/dwc-bubbleponics/585394-first-time-dwc-grower-longtime.html and its been a while but 2 months later is it ready for harvest? this is my first grow.

Got a 600Watt Dual Spectrum HPS Bulb
20Liter Pot
Ambient Temp: 26c
Water Temp: 18c
Nutrients: Canna Hydro Vega A+B/Flora A+B
PPM: At the moment around 1500
About 12 weeks in
Weekly change of nutrients
Currently running 24/0
World of Seeds Northern lights X Big Bud Auto Flower



Also going to be using a VIPAR A300 for my next grow . . .

Looks like about atleast 3 weeks to me bro but looking at it on phone so not the clearest also try take a picture in natrual light but looks like u have loads white hairs still best way to check is with a microscope and if still not sure post a picture throught microscope of trichomes on here