Hunter 44550 Owner's Manual page 27

If Home Today is already active, you may similarly extend it to the first
program of the next day by pressing the key again after the start time
HOME
TODAY
of the third program.
If the system is changed between Heat and Cool modes (either
manually or by Auto Season Changeover) during the "Home Today"
override period, the setpoint temperature will be automatically
updated. It will automatically change from the highest heat program
setpoint to the lowest cool program setpoint, or from the lowest cool
program setpoint to the highest heat program setpoint.
Press to exit Home Today mode before the schedule ending time.
HOLD
"HOME" is no longer displayed on the LCD screen, and the
CLEAR
thermostat returns to the current program.
You can manually change the setpoint temperature while in Home Today
mode. Refer to the Temporary Manual Override instructions on page 24.
Manually changing the set temperature while in Home Today mode will
not affect the Home Today ending time. However, the set temperature will
not change automatically with a manual or Automatic change between
heating and cooling.
You may also press the Home Today key while in Temporary Manual
Override. The operation is the same as the previous point above.
HOME
TODAY
NOTE: The Home Today feature does not operate if the thermostat
is not programmed by Auto or Manual programming.