Google Nest Community

Yes you can

Change it on whatever device you have Google home on so that you can re set up your Chromecast. Then set the Chromecast up, fix the date on your phone, and wait for the fix.

CHange the date on your phone that you have your Google Home on and set it back to March 7th or 8th. Then re set up your Chromecast in Google Home. Then set the date back to normal on your phone and wait for the fix.

There are replies in this thread that give you directions on how to set it back up so you at least aren't factory reset.

Yes, such as your phone