2 July 2012

On "leap seconds" and the web: one second is sometimes added into the year to account for the slowing of the earth's rotation. Saturday's adjustment affected Reddit, FourSquare, Yelp, LinkedIn and StumbleUpon. Google's approach is to gradually "leap smear" milliseconds across onto all the servers in the run up to the leap second - http://goo.gl/Z38v1
(1300 words, Sept 2011)