Patent ID: 7837128

Claim:
A method for obtaining the correct setting of time and display of an icon on a display for a clock associated with a thermostat for an air conditioning system, said clock display being driven by a control circuit and a switch actuator for changing the clock setting and the display of said icon to identify whether the clock setting displayed is Standard Time or Daylight Saving Time, said clock setting being established after elapse of a predetermined time after a change of clock setting initiated by said switch actuator, said method comprising the steps of: causing a first actuation of said switch actuator to one of advance said clock hour and set back said clock one hour with respect to an initial clock setting and change the status of said icon; causing a second actuation of said switch actuator to change the clock setting in the opposite direction with respect to said initial clock setting from the first actuation and change the icon status to that opposite of that shown in response to said first actuation; waiting a predetermined time to allow the clock setting to establish at the setting caused by one of said actuations; and causing a third actuation of said switch actuator to change the clock setting to the correct setting of time and icon status.