2005 longer than expected

The slowing of the planet’s orbit around the sun has put the extremely precise atomic clocks out of sync with the calendar time by one second. So at 7pm EST on New Years Eve an extra second was inserted into the clocks which define the official Coordinated Universal Time which is maintained around the world by over 80 clocks housed in vaults scattered around the globe.

Though the planet has always been slowing down, it has only been since the invention of the atomic clock in 1958 that we were actually able to measure it.

For more information read the story here from Seattlepi.com