How do I set the time and date on the T4 Pro thermostat?
To set the time, press Menu, navigate to TIME, press Select, and then use the arrow buttons to adjust the hour format (12 or 24 hour), hour, and minutes, pressing Select after each step. To set the date, navigate to DATE from the Menu, then use the arrow buttons to adjust the year, month, and date, pressing Select after each entry to save. (Page 9)
From the official Honeywell T4 Pro Programmable Thermostat (TH4110U2005/U) manual, page 9
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