untrusted_cert_title error when reinstalling MacOS Sierra I've wiped out my computer and am attempting to reinstall macOS as the final step of the process to trade in my Macbook Air; however, I get the "untrusted_cert_title" error and am unable to proceed. I've tried updating the date command per instructions I've found online, but continue to receive errors. Any tips? Thank you!
You don't execute MMDDHHMMYY. You replace all those characters with the current date information.

If we were performing/entering this command in Terminal right now, since it is 16:14 for me on 05/01/18, we would enter the following command: date 0105161418 and then hit "enter/return".

01 - 05/01/18

05 - 05/01/18

16 - 16:14

14 - 16:14

18 - 2018