53additional programsWorld ClockLearn to add world clocks and monitor the timein other regions.Add a world clock1. Press [ ] → World Clock.2. Select .3. Enter the name of the city or country youwant to add.4. Select the city from the result list.Delete a world clock1. Press [ ] → World Clock.2. Select .3. Select the check boxes next to the city orcountry names you want to delete.4. Select → OK.CalculatorUse the calculator to perform mathematicalcalculations.To perform a calculation,1. Press [ ] → Calculator.2. Enter the first number using the calculatorbuttons on the screen.3. Select the appropriate math function.4. Enter the second number.5. To view the result, select .• To set daylight saving time, touch DST onthe right of a world clock on the list.• To change the city, touch a world clock onthe list and enter the city name you want. • To clear the last digit entered in a multi-digitentry, select .• To clear the displayed numbers, select .