docs: public static String secondToTime(int seconds) {
  		if (seconds < 0) {
  			throw new IllegalArgumentException("Seconds must be a positive number!");
  		}
  
  		int hour = seconds / 3600;
  		int other = seconds % 3600;
  		int minute = other / 60;
  		int second = other % 60;
  		final StringBuilder sb = new StringBuilder();
  		if (hour < 10) {
  			sb.append("0");
  		}
  		sb.append(hour);
  		sb.append(":");
  		if (minute < 10) {
  			sb.append("0");
  		}
  		sb.append(minute);
  		sb.append(":");
  		if (second < 10) {
  			sb.append("0");
  		}
  		sb.append(second);
  		return sb.toString();
  	}