Best way to format a date relative to now on Android

Question

I am creating a feature in an Android app to get an arbitrary date (past, present or future) and find the difference relative to now.

Both my now and

Answer 1

build.gradle

compile 'joda-time:joda-time:2.9.9'

Utils.java

private static SimpleDateFormat DATE_FORMAT = new SimpleDateFormat("MMM dd, yyyy");
    private static SimpleDateFormat TIME_FORMAT = new SimpleDateFormat(" 'at' h:mm aa");
    public static String getRelativeDateTimeString(Calendar startDateCalendar) {
        if (startDateCalendar == null) return null;

        DateTime startDate = new DateTime(startDateCalendar.getTimeInMillis());
        DateTime today = new DateTime();
        int days = Days.daysBetween(today.withTimeAtStartOfDay(), startDate.withTimeAtStartOfDay()).getDays();

        String date;
        switch (days) {
            case -1: date = "Yesterday"; break;
            case 0: date = "Today"; break;
            case 1: date = "Tomorrow"; break;
            default: date = DATE_FORMAT.format(startDateCalendar.getTime()); break;
        }
        String time = TIME_FORMAT.format(startDateCalendar.getTime());
        return date + time;
    }

Output

Yesterday at 9:52 AM
Today at 9:52 AM
Tomorrow at 9:52 AM
Sep 05, 2017 at 9:52 AM