Calculate time ago in java 2016-11-18 02:10

private static String[] outputStr = new String[]{"year", "month", "week", "day", "hour", "minute"};
private static long[] minisArray = new long[]{
        DAYS.toMillis(365),
        DAYS.toMillis(30),
        DAYS.toMillis(7),
        DAYS.toMillis(1),
        HOURS.toMillis(1),
        MINUTES.toMillis(1)
};

public static String getRelativeTime(final long date) {
    long duration = System.currentTimeMillis() - date;
    StringBuilder sb = new StringBuilder();
    for (int i = 0; i < minisArray.length - 1; i++) {
        long temp = duration / minisArray[i];
        if (temp > 0) {
            sb.append(temp)
                    .append(" ")
                    .append(outputStr[i])
                    .append(temp > 1 ? "s" : "")
                    .append(" ago");
            break;
        }
    }
    return sb.toString().isEmpty() ? "just now" : sb.toString();
}

public static void main(String[] args) throws ParseException {
    SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
    Date start = simpleDateFormat.parse("2013-11-18 12:43:20");
    long startTime = System.currentTimeMillis();
    System.out.println(getRelativeTime(start.getTime()));
    System.out.println("used: " + (System.currentTimeMillis() - startTime));
}