Minecraft version: 1.16.5
Mod: ars_nouveau-1.16.5-1.23.11.jar
Modpack: https://www.curseforge.com/minecraft/modpacks/all-in-one-modded-one-block

When you make a ritual of moonfall - the time resets to a night of Day 1 instead of moving time to a next night.

How to replicate?
Before setting up a ritual use /time set 1337d to set time to Day 1337.
Confirm day by using /time query day
Start the ritual
Check day by using /time query day again. It will report Day 1.