In 2017, we celebrated Earth Hour’s 10th anniversary. Councils, schools, businesses, landmarks and communities in 187 countries and territories came together to make it the biggest Earth Hour ever!

In 2018, the theme for Earth Hour will be about climate change and how it affects nature and biodiversity, and we want to encourage people to connect to our beautiful Earth. This three-year theme will run until 2020 providing a continuous three-year time frame to implement tangible and innovative local biodiversity programs for your community.

We are already hearing ideas around activities as part of Earth Hour 2018, including exciting BioBlitzes (where people come together to appreciate and record the flora and fauna in their community). We will also be scaling up our popular Earth Hour Solar Lights Program and expanding it to Papua New Guinea.

For now, we’d love for you to save the 24th of March 2018 into your calendars. Other ways you can get involved with Earth Hour include:

  • Taking part in the ‘Lights Out’ for Earth Hour on Saturday 24th March at 8.30pm local time;
  • Switching off for Earth Hour Schools Day on Friday 23rd March;
  • Organising and hosting an Earth Hour event in a place that is special for you and your community such as a local park, beach or community garden;
  • Helping promote Earth Hour 2018 and your involvement via your communication channels and networks.

Add Earth Hour 2018 (24 March) to your calendar

Add Earth Hour Schools Day (23 March) to your calendar

For more information, visit or reach out to Hasmukh Chand (

#EH18 #Connect2Earth