How do I set up the time and date on the Honeywell T6 Pro?
Press Menu, then go to TIME by pressing or navigating through options with the scroll buttons. Press Select, choose between 12-hour or 24-hour mode, adjust the hour and minute settings appropriately using the scroll buttons, and press Select to save each change (Page 7). For date, repeat similar steps but start from DATE option after pressing Menu.
From the official Honeywell T6 Pro manual, page 7
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