993. Do one of the following:• To show Daylight Savings Time (DST) for the displayed time zone,press the DST On soft key [the DST on icon ( ) appears]; orpress the DST Off soft key to display standard time.• To set the displayed time zone as the home time zone for yourphone, press the Options soft key and select Set as home zone.You are prompted to confirm the Home Zone change. To save yourchange, press the Yes soft key. The home zone marker moves tothe displayed time zone.• To keep the displayed time zone as a second, default time zone,press . You are returned to the Tools menu.• To discard the displayed time zone and close the World Timescreen, press . You are returned to the Tools menu.CalculatorYou can perform calculations, includingaddition, subtraction, multiplication, anddivision using your phone.1. At the Tools menu, select Calculator.The Calculator appears in thedisplay.2. Enter the first number in your calculation using the keypad(numbers can be up to nine digits long).• To enter a decimal point, press . (Calculator only accepts 2digits after a decimal point.)• To change the sign for a number to a negative, press .3. Use the Navigation key to set the type of calculation thatyou wish to perform. Your choices are as follows:• Up navigation key — [x] Multiplication• Left navigation key — [-] Subtraction• OK key — [=] Equals/Total• Right navigation key — [+] Addition• Down navigation key — [÷] DivisionFor nested operations [such as (1.81 + 9.34) / 5.22] and tocalculate powers (such as 3 2), press the Operator soft key.The following options appear in the display:• ( — Beginning of nested operation• ) — Ending of nested operation• Power — Raise the current number to the power of your nextentry4. Use the keypad to enter the next number in yourcalculation.PST/PDT:San FranciscoLos AngelesMST/MDT:DenverPhoenixCST/CDT:DallasChicago