MacBook date resets to 1970
Several times over the past few months my MacBook Pro has reset its date, and also used top its battery overnight. At first is was just a few days off, then years, and then all the way back to noon, January 1 1970. After several resets last year, it stopped happening. Then again this morning, same date and time. and a flat battery. Of course, it won't connect to the internet when the time is off, which is how I notice it.
I can reset the time and date and reconnect, get mail, and get functioning again. But why?
Is there a bigger, perhaps sinister problem I need to attend to?
And is there a permanent fix?
Thank you
MacBook Pro 15″, macOS 14.2