What Is World Time And How Do I Use It On My SCH-I910 (Omnia) Phone?
World Clock allows you to view the time of day or night in 100 different cities around the world, within all 24 time zones. World Clock is very useful when traveling because you can not only view your home time but also two other time zones as well. When using the Dual Clock feature it is not only possible to see your local time zone but also the visiting time zone quickly from the Today screen.
To view the World Clock follow the steps below:
Note: Although the SCH-I910 (Omnia) handset will automatically update, if enabled, the time and date while inside the Verizon Wireless digital network, it does not automatically change appointment times when traveling to another time zone. To ensure that you don’t miss appointments, change the clock setting to Visiting and then select the appropriate time zone.

To display dual clocks follow the steps below:

To set the home & visiting time zones follow the steps below:
Note: Changes may not take effect until the handset is power cycled (turned off then turned on again)
For more information on the SCH-I910 (Omnia) or click here.