There’s a minute with 61 seconds in it 2 times every year.

This year (2012) is obviously a leap year which means that woman have the task of asking their partner to marry them. But this leap year something else is happening, a leap second.
Leap seconds are used to keep up with the earths rotation because, believe it or not our atomic clocks from the 1950′s are more precise than earths rotation.
As the Earth spins on its axis there are small deviations which means that some days end up being longer than others. Atomic clocks don’t precisely match actual earth time because our orbit tends to be irregular.
What would happen if we don’t have leap seconds? Well, in a few years we would find ourselves a few seconds out of sync and in a few hundred years we’d be approximately a minute out. But after several hundred thousand years we would find ourselves eating lunch at midnight.
The leap second will be implemented on the 30th of June at midnight, it will take two seconds to move from June to July — instead of one.
So the question is, one will you do with that extra second?
More Detail :-

www.spinelesswuss.com/june-30-will-have-the-longest-minute-in-the-world-at-61-seconds/