Mac's time keeps changing back 15 days

I have a 13-inch, 2019 MacBook Air. The time keeps changing back 15 days every time the computer sleeps, when I log back in, or when a restart happens. I have set the clock to sync automatically but the time keeps jumping back 15 days from today. I have done a PRAM/SMC reset already but it does not seem to help. Any ideas on how to fix this? Currently, I am on Sonoma 14.1.1 Even if I put in the date without the sync i.e. manually with the time sync off, it will still move back to the old time every time it wakes up.