[benjoffe]

The intention is to present dates the way they often are found in that country (not just the "gold standard"). From my understanding Canadians often encounter dates in all three formats you noted (although often using named months to avoid ambiguity).

All three date formats are used in Weekle when set to Canadian mode, and fully numeric d/m/y or m/d/y dates are only used if the date is >12 to avoid ambiguity.