I’m always excited when a copy of Bulletin C trundles into my mail box, twice a year.
Unfortunately, recently it has always said that there will be no new leap second.
But today it didn’t! A leap second will be introduced at the end of June 2012: 2012-06-30 23:59:59 UTC will be followed by 2012-06-30 23:59:60 UTC.
So remember to set your clocks appropriately :)