class VisualizerUtility {

    public static String convertToDate(long timestamp) {
        Date date = new Date(timestamp * 1000L);
        SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSZ");
        format.setTimeZone(TimeZone.getTimeZone("UTC"));
        String dateString = format.format(date);
        return dateString;
    }

}