Check out this Honeywell Home Support guide on how to easily change the clock settings on your thermostat device.. If you currently have a Honeywell Vision Pro thermostat, you know how important programming the correct day can be. One of the main features of this line is the ability to select multiple days to allow you to easily customize the thermostat for your unique schedule.
Unsure how to program the schedule on your TH4210U2002 or TH4110U2005 thermostat? Honeywell Home Support provides steps.. The -Home- screen with no internet connection. Showing the manually set time and day. 10. Done with How to Change Time and Day on Honeywell Thermostat ! At last, the thermostat day and time are now as we wish. But remember that if you connect the thermostat to the internet, this erases your manual date / time settings.