Earth Hour 2017 (March 25) marks ten years since the lights-out event first started in Australia in 2007.

Launched by WWF, the event has become the world’s biggest grassroots environmental movement where landmarks and communities switch off their lights to show their support for a brighter future for the planet.

Now celebrated in over 170 countries, and over 7,000 cities, with over 6 million Australians (1 in 4) taking part*, Earth Hour has one mission: to unite people to protect the planet and show they care about its future. On Saturday March 25, Australians will be called upon to turn off their lights between 8:30-9.30pm as a symbol of support for a low pollution, clean energy future for all generations.

Families, friends, businesses, schools and communities across the country can register and submit information about their own events at in advance of the global event.

Dermot O’Gorman, CEO of WWF-Australia, said: “Australians should feel proud of the role they’ve played in starting a decade-long, global conversation about climate change. It’s a great Australian success story. What started as an Aussie movement has grown into a global phenomenon for climate change. We have seen a huge number of positive steps towards a brighter future in the decade since Earth Hour started, proof that one person can make a difference.”

Listings and media diary information: 8:30pm – 9:30pm local time, Saturday, March 25, 2017.

Australians all across the country can register their event and support on the Earth Hour website Go to to search for Earth Hour events taking place in your area as they become available.

*Research conducted by AMR 2016