Clock behind by exactly half an hour. Should I be worried?

[Another]

So this evening, I looked at my laptop clock, thought it was a bit off, checked the time on google, and it turned out to be half an hour behind

Easily fixed, but this has never happened to me before, ever, since I have been using windows machines, so I tried looking up what may have caused it

And so far, the only solution I have is that my "CMOS" battery is dying and is a common problem found in older computers. Which is odd, because I got my surface this year

I just need reassurance that my very expensive machine isn't about to fall apart on me so soon!

 

[jnjroach]

It happens occasionally when the machine is unable to reach a NTP server for some time.....

 

[sharpuser]

You did some time travel.

Set your clock about 2 years into the future and see if Windows still crashes. Also check battery life.

 

[Fedway]

Dumb question, but did you check your time zone settings? There are some international time zones that are offset by half an hour.

 

[GreyFox7]

Check yourself for signs of alien probing.