Well in my case i know 4 days for small buds, 5 for big buds.
I put in jars with a hydrometer. Check thruout the first day to overnight
They're usually at 65 to 70.
If 70, let them air dry for 6 hours or so and jar them up again.
Once below 70, your good to go.
You can check around day 3 if you want.
I also just fold over the very top of my bags so the buds have plenty if space in the bag
Thats just how i do it.