Here to say we are several people with the same issue, and the problem is with a mod.
Which one exactly, we don't know yet.
As a matter of fact, it seems to be different mods causing the same problem.
Here's the ongoing thread on reddit where people are trying to figure out exactly what the cause is.
I'd really love for a dev to take a quick look at this and say "Ah yeah, it's this thing right here dummies" since the error logs don't seem to print out what's causing the game's time and menus to simply stop working.
I know playing modded releases devs and moderators from any responsibilities, but we've got an increasing amount of people here who have their saves completely ruined.
One person even claims to only have 4 mods installed, and still it happens to them, so for all I know the issue could be vanilla, but the problem strengthened by a mod.