The game keeps time properly, but whenever I close the game, the date resets back to 16th of Last Seed, 3E427, which is a few years before the game is supposed to start, right? If I were to wait awhile until it was the 17th in one save, and then start a completely new game, without saving the previous one, the date would remain the 17th in the new game. If I were to then close the game and load up any save again it would be the 16th again though. The date seems to be universal across all saves, and resets to the 16th whenever the game is closed.

Any idea what's going on? I do have a lot of mods, but none that change the date afaik.