System SettingsMake settings for the device's system.The value in brackets () is the default setting.Setting items Value ExplanationLanguage English (default) Set the display language.DeutschUnits km (default) Set the display units for distance.mileClock 12 Hour (default) Set the format for the display time.24 HourDST ON Set Daylight Saving Time.OFF (default)Time Adjust - The device receives a signal from the GPS andautomatically sets the time.Signals from the GPS cannot be received while indoors.Make sure the screen is facing up and you are outsidewith no obstructions overhead.If GPS positioning has not completed after two minutes,we recommend selecting Cancel, moving to a differentlocation, and trying again.Time Zone Auto (default) Sets the time zone for your location.When Auto is selected, perform Time Adjust to set thetime zone automatically.When Manual is selected, you can set the time zonewithin a range of -12:00 to +14:00.ManualDate Format Day. Month Set the display format for the date.Month. Day (default)Invert Disp. ON Set the display format for the screen.When ON is selected, white text is displayed over a blackbackground.When OFF is selected, black text is displayed over a whitebackground.OFF (default)SF-810 User ManualSettings98