I can't even see how someone could get to a format with the year in the middle. In uses where you don't need to specify the year you might use either MD or DM,

I can't even see how someone could get to a format with the year in the middle. In uses where you don't need to specify the year you might use either MD or DM, and when adding the year you could put Y either on the front or back of either of those.