Earth Hour initiative began in Sydney in 2007 but quickly went global. "Over 170 countries and territories have already confirmed their participation; more than 1,200 landmarks and close to 40 UNESCO world heritage sites," says Earth Hour head Sudhanshu Sarronwala. Here are 3 easy steps how you can participate Earth Hour. 1. Mark your calendar Earth Hour is traditionally celebrated the last Saturday of March. In 2015, it will be celebrated on March 28th, from 8:30-9:30pm (20:30-21:30) in your local time zone. 2. Turn off all lights Turn off all lights at 8.30 pm. 3. Enjoy the Darkness Take a moment to think about Global Warming and your consumption of energy, package material. Can you do something to save the world? Can you turn off appliances you aren't using. Here are my pictures of the Earth Hour. #EarthHour #Selfie Our house during Earth Hour. Me nak** at backyard. Statue of freedom during Earth Hour Nak** Britney Spears