Honeywell PRO TH4000 series - Set the Time and Day

OperatingManual
Press SET,then adjust time.
Press SET,then select current day.
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1. Press the SET button, then press A or Y
to set the clock time.
2. Press the SET button, then press A or Y
to select the day of the week.
3. Press RUN to save & exit.
Note: If the display flashes Set Clock, the
thermostat will follow your settings for the
weekday "Wake" time period until you reset
the time and day.