// Outside range
        assertFalse(rule.isTarget(21, 59, 1)); // 21:59 on Sunday
        assertFalse(rule.isTarget(2, 1, 1)); // 2:01 on Sunday (actually Monday morning)
    }

    public void test_intervalRule_isTarget_specificDays() {
        IntervalRule rule = new IntervalRule("10:00", "18:00", "1,3,5", 1000); // Sunday, Tuesday, Thursday

        // Within time range and matching day