How do I set the time and date on the 6820?
Press ENTER to access the Main Menu, then press 4 to select Set Time & Date and enter a code if prompted. Make the necessary changes in the fields on the screen and press ENTER when the time and date are correct. (Page 1)
From the official Honeywell 6820 manual, page 1
Have a follow-up question?
Answers from the official manual.
Common questions