@Hyperlynx @futzle @static I believe you! But I've never encountered it before.

But I also just don't understand it. If Sunday's the start of the week, what's Monday? "Oh damn, it's Monday, that ol' second day of the week where I have to get up and go to work!"
How does the week end on Saturday, and then on Sunday the next week starts but it's still the weekend?
My brain just can't wrap itself around this conundrum!