Inaccurate date and time - time.apple.com

Hi tostpszenny,

Thanks for posting in Apple Support Communities.

We understand that your time and date is inaccurate. Does this behavior occur in a new user account or when in macOS Recovery? See user details in Set up users, guests, and groups on Mac. If this behavior continues there and after reinstalling macOS, it would be best to reach out to Apple to investigate this behavior. Use the link below.

Contact Apple Support

Regards.

tostpszenny wrote:

Hi All,

I am having a pretty significant issue with my M1 MacBook Air.

Long story short - my MacBook was turned off for a longer period of time (approx. 2 weeks) and in the meantime the battery completely drained out. After charging it I noticed that time and date were significantly inaccurate (almost exactly half a year difference) even though the Set Time and Date settings were set to automatic (feeding from time.apple.com).

I tried to look up for a solution everywhere I could (not contacted Apple Support yet though) but nothing seems to work for me, including updating and reinstalling the system, changing the date through Terminal, changing the time.apple.com to other NTP servers, etc.

The only temporary solution for me is to set the time manually, but that does not resolve the root of the issue.

I am completely clueless what might have caused this issue, but my suspicion is that it may be somehow connected to the time the MacBook's battery was drained.

Thanks in advance for any tips or suggestions.

Hmmm.

You can try Try resetting the SMC https://support.apple.com/en-us/HT201295

and

Try resetting NVRAM/PRAM http://support.apple.com/kb/ht1379

Their are many options as you posted above...From Terminal you can try sync to Apple time servers, copy & paste:

sudo sntp -sS time.apple.com