Well, looks like I'm joining a conspiracy, my 2010 Rdigeline RTL has just crashed with the same time & date problem. I have a 2010 Accord also.......need to go check it. I'm assuming that since it is a mass problem it's Honda's way of getting us to spend $150 for a new Navi CD.
This happened to your 2021 Ridgeline?That's weird. The day of the week for January 1 doesn't match either 2002 (Tuesday) or 2022 (Saturday), either.
What is it showing as the date today?
What happens if you manually set the time and date?