In this The Witcher 3: Wild Hunt mod, random monster encounters now only spawn between 22:00 and 04:00 (night time). 4am is the earliest hour peasants leave their homes to work the fields. 9pm is the latest hour they start leaving their fields to go back home.
Thus 10pm-4am (which coincides with the game's night cycle) should also prevent peasants and monsters regularly sharing the same space at the same time.
Random noonwraiths previously spawned 05:00-19:30 (06:00-18:00 in Toussaint) they now spawn 12:00-13:00.
Random nightwraiths previously spawned 19:30-05:00, they now spawn 00:00-01:00.
Night-only versions of wraiths (21:00-05:00), lycans(21:00-05:00) and water-hags(22:00-4:00) are left untouched.
Credits: Partoutatix