2019 MacBook Pro clock is wrong after sleeping

I have a 2019 macbook pro currently running 14.4.1. Just recently if I put it to sleep or even turn it off, the clock stops running. The computer has been plugged in, so it isin't a battery issue. Unless these have a seperate little battery for date and time like PC's do. So now everytime I boot back up, I have to go to settings and click on & off the "set time and date automatically" toggle to update to the correct time. I have even tried leaving this setting off thinking it was an issue with the server. But the clock still stops when the laptop goes to sleep. Any ideas?