How do I set the time and date on the T6 Pro thermostat?

Press the Menu button, navigate to TIME using the arrow buttons, and press Select to set 12 or 24-hour format, then adjust hours and minutes. For the date, navigate to DATE in the menu and use the arrow buttons to set the year, month, and day, pressing Select after each to save. Press Select after adjusting the day to save and exit the Date menu. (Page 6)