It's always a lovely day here in New Zealand.
You see, Saturdays here are Friday in the USA and so I have to work on Saturdays with all my american collegues. Mondays here are Mondays here so I have to work with my Kiwi collegues. But Sunday is great, on a New Zealand Sunday, no-one in the world is working their regular week.
This is not true anywhere else in the world! Think about it you need to be a clear 24 hrs ahead of even the latest starting Saturday to claim this, and we're the only ones :)