About Earth Hour

What is Earth Hour?
Starting as a symbolic lights out event in Sydney in 2007, Earth Hour is now the world's largest grassroots movement for the environment, inspiring millions of people to take action for our planet and nature. From pushing for environmentally-friendly laws and policies to eliminating single use plastics, our... Read More

Earth Hour Expo

What is the Earth Hour Expo?
The Earth Hour Expo has been developed to provide a public platform for businesses in the green economy to showcase energy efficient products and services to the broader community. As a result the general public will be given an excellent opportunity to learn, first hand, how the featured... Read More

Get Involved

Join in on the Fun
Commit to "Lights Out" at 8:30pm on Saturday March 30th.  Learn more about our new family events.  Show your support by getting friends and family involved.  Register teams for your school or company.  Do all that you can to go beyond the hour.  Earth Hour's greatest strength is the power of people... Read More

Follow Us


Every little bit counts when it comes to a charity like Greenrock!
Donations help us fund the day-to-day operations of the organisation, allowing us to maintain our existing programmes while exploring new programmes for the future.