46Menu functions• Record settings: customise the defaultsettings for the voice recorder:Default name: change the defaultprefix of file names.Recording time: select a maximumrecording time.• Key management: manage licencekeys you have acquired.World clock (Menu 3.4)Use this menu to set your local time zoneand find out the current time in another partof the world.Setting the local time zone1. From the world map, press [Left] or[Right] to scroll to the city you want onthe upper line ( ). As the time linemoves, the time and date of the givenzone display.2. Press [OK] to save the city as your localtime zone.Viewing world time1. From the world map, move to the lowerline ( ).2. Press [Left] or [Right] to scroll to the cityyou want.3. Press [OK] to save the time zone.Applying daylight saving time1. From the world map, press <Options>and select Summer time.2. Press [OK] to select the time zones youwant.3. Press <Select>.4. Press [OK] to save the time zone.Calculator (Menu 3.5)Use this menu to perform basic arithmeticfunctions such as addition, subtraction,multiplication, and division.Performing a calculation1. Enter the first number.Press [ ] to include a decimal point.