Tools 775. At the prompt, “Set as local time?” press the Yes soft key to set or the No softkey to leave setting unchanged. The display shows the world map with yoursettings.6. Press the left soft key to choose DST On or DST Off to set the daylightsavings time, if necessary.7. Press .CalculatorYou can perform calculations, including addition, subtraction, multiplication, anddivision using your phone.1. In standby mode, press Menu ➔ Tools ➔ Calculator. The Calculatorappears in the display.2. Enter the first number in your calculation using the keypad (numbers can beup to 15 digits long).• To enter a decimal point, press . (Calculator only accepts 5 digits after a decimalpoint.)• To change the sign for a number to a negative, press .3. Use the Navigation key to set the type of calculation that you wish to perform.Your choices are as follows:4. Use the keypad to enter the next number in your calculation.5. Repeat steps 3 and 4 as needed.6. To perform the calculation and view the result, press .To clear your last operation or number entry, press .To clear all of your entries, press the Clear soft key.