Because Jupiter's axis of rotation does not quite line up with its magnetic axis, the moons that orbit the planet feel such a fluctuating magnetic force.

ECONOMIST: Blue moon

"Countries could just accommodate the divergence by not putting their clocks forward in the spring, so you'd change your time zone by one hour to bring civil time back into line with the Earth's rotation, " added Dr Whibberley.

BBC: Changes to the world's time scale debated

Yankees right-hander Hiroki Kuroda is expected to take his next turn in the rotation Monday at Cleveland after bruising the middle finger on his throwing hand when hit by a Shane Victorino line drive Wednesday.

NPR: Jeter May Not Return To Yankees Until Next Month