code: public static String duration(final Number seconds, final TimeStyle style)
      {
          int s = seconds.intValue();
          boolean neg = s < 0;
          s = Math.abs(s);
          return style.format(context.get(), neg, s / 3600, (s / 60) % 60, s % 60);
      }
docs: <p>
  Formats a number of seconds as hours, minutes and seconds.
  </p>
  
  @param seconds
  Number of seconds
  @param style
  Time style
  @return a String with the formatted time according to the given style