25th of March
Global Earth Hour Campaign
The Earth Hour campaign is always held on the last Saturday in March (except for Easter) and has become one of the largest environmental movements in the world, involving millions of people in more than 180 countries and territories. The event was held for the first time on March 31, 2007 in Australia, when over 2.2 million homes and businesses in Sydney switched off their lights for an hour. Since then, it has become a catalyst for positive environmental impact and is driving major legislative change by harnessing the power of people.