Honeywell RTH8500 User Manual page 25

Installing your thermostat
11 Set date and time.
Touch or
s t
displayed time and date.
Press and hold a button to quickly
change a setting.
Note:This
thermostat will
automatically update for daylight
saving time (if observed in your area)
and all date/time information is stored.
If the thermostat is connected to
Wi-Fi and registered to Total Connect
Comfort, the current time is updated
from the internet.
buttons to change
Year
Time
23
Day
Month
69-2715EF—07