Not sure what to make of that — quick math suggests it’s running on 30 minute days.
Was day length changed while the server was running? If so, was it through editing the text file or server commands?
(I also need to double check that 3 is the correct value. Just can’t right now.)
Have you tried starting a vanilla game and seeing if the issue persists (completely new save, no mods)? Sometimes mods do not play well with updated game and can wreck havoc to your save games (nature of IWBUMS, unfortunately).
Looks like someone had similar problem and brought it up on mod's page in Steam Workshop. Here's a (copy > paste) of proposed solution:
Well... I have found the solution. As I suspected from the console file the game is looking for the spawnpoints.lua in the wrong folder. If you move the maps folders from the steam workshop to the PZ game folder they work. So move the folders from "SteamLibrary\SteamApps\workshop\content\108600\1911132112\mods\Pillows Many Spawns - By Location\media\maps"
Hope this helps