21st May 2018, 11:24 AM
I like MM/DD/YYYY because I know it's just America, but at the same time I'm so used to writing it out as "May 21st, 2018" that it fits that format. In diction, if someone were to ask "Hey, what day is it?" I'd respond with "Oh, it's May 21st!". The year usually isn't relevant in conversation, so...