*
     * @return the delay in milliseconds, or 0 if no rules apply
     */
    protected long getDelay() {
        if (ruleList.isEmpty()) {
            return 0;
        }
        final Calendar cal = getCurrentCal();
        final int h = cal.get(Calendar.HOUR_OF_DAY);
        final int m = cal.get(Calendar.MINUTE);
        final int d = cal.get(Calendar.DAY_OF_WEEK); // SUN(1) - SAT(7)
        for (final IntervalRule rule : ruleList) {