Converts a time in seconds to a pretty string

TimePrettify.java

 /**
     * Convert a second time to a "pretty" string
     * Credit: https://stackoverflow.com/a/7663966 (modified for correct English if there's only 1 unit)
     * @param seconds the time
     * @return a pretty string
     */
    public static String getDurationBreakdown(long seconds) {
        if (seconds < 0) {
            throw new IllegalArgumentException("Duration must be greater than zero!");
        }

        long days = TimeUnit.SECONDS.toDays(seconds);
        seconds -= TimeUnit.DAYS.toSeconds(days);
        long hours = TimeUnit.SECONDS.toHours(seconds);
        seconds -= TimeUnit.HOURS.toSeconds(hours);
        long minutes = TimeUnit.SECONDS.toMinutes(seconds);
        seconds -= TimeUnit.MINUTES.toSeconds(minutes);

        StringBuilder sb = new StringBuilder(64);
        if (days != 0) {
            sb.append(days);
            sb.append(" Days ");
        }
        if (hours != 0) {
            sb.append(hours);
            sb.append(" Hours ");
        }
        if (minutes != 0) {
            sb.append(minutes);
            sb.append(" Minute");
            if (minutes != 1) {
                sb.append("s");
            }
            sb.append(' ');
        }
        if (seconds != 0) {
            sb.append(seconds);
            sb.append(" Second");
            if (seconds != 1)
                sb.append("s");
        }

        return sb.toString().trim();
    }