How to format a duration in java? (e.g format H:MM:SS)

String.format("%d:%02d:%02d", s/3600, (s%3600)/60, (s%60))

long duration = 4 * 60 * 60 * 1000;
SimpleDateFormat sdf = new SimpleDateFormat("HH:mm:ss.SSS", Locale.getDefault());
log.info("Duration: " + sdf.format(new Date(duration - TimeZone.getDefault().getRawOffset())));