Yeah I didn't know that when I started and I had trouble with a profile I made for multiplayer only and I tried to use my singleplayer file to see if I still had issues on that one, and thus the time changed. I can't remember exactly everything I changed but there were lots that would change the view on the profile and save of how much ingame time was played/what week and day it was ingame, but when I would try to load the files they would tell me they can't be loaded and have to revert to an autosave.