I agree. I should have figured "min" wasn't the correct answer, because MIN is the minimum function. But if I hadn't had that brain-fart, I'd have selected "m" instead and still have gotten it wrong. There's no reason to think "n" is a abbreviation for minute. Especially since it's used to create Unicode strings. Although in practice since I seldom need to know time differences in minutes, I'd go look it up.