Returns the difference between the provided date and now. The difference is in actual calendar days rather than time difference based. This means 01/Jan/2015 23:50 and 02/Jan/2015 00:01AM has a difference of 1 day.

CalendarDayDifference.java

    /**
     * Returns the difference between the provided date and now.
     * The difference is in actual calendar days rather than time difference based.
     * This means 01/Jan/2015 23:50 and 02/Jan/2015 00:01AM has a difference of 1 day.
     *
     * @param date The date from which the difference to today has to be calculated.
     * @return difference in calendar days.
     */
    public static int getRealDayDifference(Date date) {
        String timeString = null;
        Calendar now = Calendar.getInstance();
        Calendar to = Calendar.getInstance();
        to.setTime(date);

        int daysDiff = now.get(DAY_OF_YEAR) - to.get(DAY_OF_YEAR);
        //if negative, it's been over a year
        if (daysDiff < 0) {
            daysDiff += 365 + Math.abs(daysDiff);
        }

        //absolute value just in case the provided date is in the future.
        int yearsDiff = Math.abs(now.get(YEAR) - to.get(YEAR));
        int daysMultiplier = 0;
        if (yearsDiff > 1) {
            daysMultiplier = 365 * (yearsDiff - 1);
        }
        
        daysDiff += daysMultiplier;
        return daysDiff;
    }