User preferences menu ContentsTime and dateThe Time & Date menu provides date and time format options and a time offset setting to compensate for any time zone difference between local time and the Universal Time Constant (UTC).Units of measurementThe Units menu enables you to specify the measurement units used for data.User interface languagesThe Language menu allows you to select the language that will be used for the display’s user interface.VariationVariation is the local difference between True North (which does not change) and Magnetic North, which changes slightly each year. Typically, cartography uses True North, and Magnetic North is the direction in which a magnetic compass points. Variation changes depending on your geographic location and date. The Variation menu provides options to compensate for variation.Key beepBy default, every time a button is pressed, the display emits an audible beep. The beep can be enabled or disabled using the Key beep option.Parent topic: Setup menuPrevious topic: Autopilot calibration menuNext topic: System Set-up menu