The UN measures and compares the happiness of different countries in the World Happiness Report. On 20 March, the centre of the sun is directly above the Earth's equator. The UN bases its report on social, economic and environmental well-being. Jayme Illien suggested the idea of an international day to increase happiness. People in Bhutan answer questions and the results are compared every year to measure progress. It is more than just a nice idea. http://500ab102e3079df093a4-ff8eeadd950d51fd1fc939dca75b3973.r47.cf1.rackcdn.com/assets_default.swf