public static boolean isInEasternEightZones(){
  return TimeZone.getDefault() == TimeZone.getTimeZone("GMT+08");
}

public static boolean isInEasternEightZones ( ) { return TimeZone . getDefault ( ) == TimeZone . getTimeZone ( "GMT+08" ) ; }
returns if the timezone of current device is easterneightzone ( china ) .
