Unknown type when do I harvest

I have an unknown type and was trying to figure out what signs I can use to determine when to harvest

I would start looking at it at about 8 weeks
It could finish in 8~12 weeks
You will watch the pistils start to recede and most likely change color.
The calyx will swell.

If you have a scope check the trichs
Clear is immature, cloudy is ripe, amber is degraded

I like to get it when they are mostly cloudy but there will still be some immature and some degraded.

Thats a nutshell version

Should work for "Unknown"

Thank you for the info.

finish times are often unknown because grow rooms are not standard.
Some strains taking 80 days for one grower might take only 65 for the next,
then there's personal preference.
If you've ever grown any strain successfully you'll know the signs of finish, as mentioned above.
Plants will slow their feeding/watering as they finish also. Use your mini scope to look at trichomes, pistils, calyx.
A picture sure would help you know. we might be able to see at least sativa vs indica traits.....its all guesswork from
this side of the screen though.