To compensate for the gradual slowing of the Earth’s rotation, horologists will add an extra second to Coordinated Universal Time on June 30. A total of 24 extra seconds have been added to the clock since 1972.
Here’s what the extra second might be worth to the world’s biggest economies. To get a ballpark figure, we divided 2010 GDP figures for the G20 countries by the number of seconds in a year, which we calculated to be 31,622,400 (60 seconds X 60 minutes X 24 hours X 366 days – because it’s a leap year). Mouse over the pie chart for individual nation totals.
Our grand total:
» BLOG: Scientists to hold back time for “leap second” this weekend