| http://www.w3.org/ns/prov#value | - Sun Dec 28, 2008By Jim WolfWASHINGTON (Reuters) - Those eager to put 2008 behind them will have to hold their good-byes for just a moment this New Year's Eve.The world's official timekeepers have added a leap second to the last day of the year on Wednesday, to help match clocks to the Earth's slowing spin on its axis, which takes place at ever-changing rates affected by tides and other factors.T
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