You can set the time zone for your home location as well as a visiting location. Choose the location for which you want to set the time zone by tapping the city name either below the Home Location label or above the Visiting Location label.
Tap the Set Time Zone button.
Tap on the map near your current location.
The Set Time-Date utility displays a list of locations near where you tapped.
Tap the location nearest to your home location.
Tap the Save button.