Messing with the definition of the week is always an issue I have with these calendars. An unending cycle of days is more useful than fixing the months to the w

Messing with the definition of the week is always an issue I have with these calendars. An unending cycle of days is more useful than fixing the months to the week. The week-based calendars like https://en.m.wikipedia.org/wiki/ISO_week_date https://en.m.wikipedia.org/wiki/ISO_week_date are a better fit, though they clearly have more of an issue with seasonal drift.