private static List<DayOfWeek> parseDays(String startInclusive, String endInclusive) {
        DayOfWeek start = dayFrom(startInclusive);
        DayOfWeek end = dayFrom(endInclusive);
        if (end.getValue() < start.getValue()) {
            throw new IllegalArgumentException(String.format("Invalid day range '%s-%s'", startInclusive,
                                                             endInclusive));
        }
        return IntStream.rangeClosed(start.getValue(), end.getValue()).boxed()
                        .map(DayOfWeek::of)
                        .toList();
    }
Returns a list of all days occurring between startInclusive and endInclusive
config-model-api/src/main/java/com/yahoo/config/application/api/TimeWindow.java