private String getDate(long timeStamp){
    DateFormat objFormatter = new SimpleDateFormat("dd-MM-yyyy");
    objFormatter.setTimeZone(TimeZone.getTimeZone(timezone));

    Calendar objCalendar =    
            Calendar.getInstance(TimeZone.getTimeZone(timezone));
    objCalendar.setTimeInMillis(timeStamp*1000);//edit
    String result = objFormatter.format(objCalendar.getTime());
    objCalendar.clear();
    return result;         
}