vaguerant

I think of it as, if you got shot halfway through telling me the date of something, “December” on its own is more useful information than “12”. Technically, “12” narrows it down to fewer possible dates, but it could be at any time of year, while December only happens once a year, in March or whatever.

Perhaps the most relevant of all: time of day. 9:30. Hours first, then minutes. I’m not from a location that does month-day ordering, but I think largest to smallest works excellently for time measurement, hence ISO 8601.