Earth Hour

What its all about
It’s as simple as a flick of the switch.


What began as a campaign to get Sydneysiders to turn their lights off, has grown to become one of the world’s biggest climate change initiatives. In 2009, at 8.30pm on March 28, people around the world will turn their lights off for one hour – Earth Hour. We’re aiming to reach one billion people, more than 1000 cities, all joining together in a global effort to show that its possible to take action on global warming.


Earth Hour started in 2007 in Sydney, Australia with 2.2 million homes and businesses turning their lights off for one hour. Only a year later and this event had become a global sustainability movement with up to 50 million people across 35 countries participating. Global landmarks such as the Golden Gate Bridge in San Francisco, Rome’s Colosseum and the Coca Cola billboard in Times Square, all stood in darkness, as symbols of hope for a cause that grows more urgent by the hour.


Earth Hour 2009 is a global call to action to every individual, every business and every community. A call to stand up, to take responsibility and to get involved in working towards a sustainable future. Iconic buildings and landmarks from Europe to The Americas will stand in darkness. People across the world will turn off their lights and join together in creating the vital conversation about the future of our precious planet.


Over 64 countries and territories are participating in Earth Hour 2009. This number grows every day as people realise how such a simple act, can have such a profound result in affecting change.


Earth Hour is a message of hope and a message of action. Everyone can make a difference.


Join us for Earth Hour 2009, turn off your lights at 8.30pm Saturday 28 March and sign-up here to be counted.

What you can do
Turning your lights off for an hour is a great start. However, there are many other things you can do to make Earth Hour 2009 a success.

Sign Up Now. Become a part of Earth Hour and get useful tips and tools to reduce your carbon footprint everyday

Tell A Friend. Better still – tell them, your family and even your work mates. Encourage them to sign up. Email them a link to this website and mobilise even more people!

Tell Your Story. How is climate change affecting your family and your community? We want to hear how you're becoming part of the solution.

Run your own Earth Hour. Download our quick guide for how to run Earth Hour in your city or town. It's easy!

Downloads. Here are some great downloads to help you run your Earth Hour campaign. Poster, Logo, Stickers, Postcard-Front, Postcard-Back, iPhone Wallpaper, T-Shirt Logo, T-Shirt Mockup. Check back for more very soon.


Your Earth Hour. What will you be doing at 8.30pm on Saturday March 28? We're keen to know what you have planned for Earth Hour 2009. If you'd like to share your plans with Earth Hour and the media, then please send us an email describing with as much detail as you can what you have planned to myearthhour@earthhour.org. Don't forget to include your name, where you live (City and Country), and your contact telephone number including your country code.

Signup to GiverSign
Tell the world: Get the Earth Hour GiverSign and make your e-mails, blog posts, Facebook feeds and MySpace pages advocate the Earth Hour message. Let everyone know that you signed up to participate and that they should as well!