Check to see how many days difference between the current date and the date passed in as a parameter.

Days from today

public static int daysFromToday(Calendar c) {
    Calendar today = Calendar.getInstance();
    int dayDifference = c.get(Calendar.DAY_OF_YEAR) - today.get(Calendar.DAY_OF_YEAR);
    int yearDifference = c.get(Calendar.YEAR) - today.get(Calendar.YEAR);
    return dayDifference + (365 * yearDifference);
}