// demonstration for https://stackoverflow.com/a/9027362/208437 class Main { public static String convertSecondsToHMmSs(long seconds) { long s = seconds % 60; long m = (seconds / 60) % 60; long h = (seconds / (60 * 60)) % 24; return String.format("%d:%02d:%02d", h, m, s); } public static void main(String[] args) { System.out.println(convertSecondsToHMmSs(5000)); // prints "1:23:20" } }