There's no such thing! Think about it: a guy who flies around the whole world in one night. It just doesn't quite correspond to the laws of time and travel. –Now, now, now, now, now, it's possible. You take the International Date Line, multiply it by the Time Zones, divided by the accelerated rotation of the earth... uh, carry the 1, and, uh, allowing for the Vernal Equinox on the Tropic of Cancer, he might just pull it off.
