How to Change the Terminal's Time Zone Setting

By auto update

Insert a SIM card, after it connect to network, the time zone will be auto updated.

By manual

Go to menu Settings, At Q2/K2, Click on top right，you will see the whole menu, Click Date & time, close "Automatic time zone" ,and then you can click "Select time zone", to set your timezone.

By API

Snippet code:

   AlarmManager mAlarmManager = (AlarmManager)getSystemService(Context.ALARM_SERVICE);mAlarmManager.setTimeZone("GMT+08:00");   

and add permission "<uses-permission android:name="android.permission.SET_TIME_ZONE" />" at manifest file.