Thank you for creating the Biggest Hour for Earth in 2025!
Join us again on 28 March 2026, 8.30pm your local time for Earth Hour 2026
Thank you for creating the Biggest Hour for Earth in 2025!
Join us again on 28 March 2026, 8.30pm your local time for Earth Hour 2026
Go beyond the hour
This year, the world gave nearly 3 million hours for Earth. Continue to give your hours for Earth - whether you’re into food, fitness, the arts, or the outdoors, anyone, anywhere can Give an hour to care for our planet.


Uniting for people and our planet
Since our beginnings, Earth Hour has been known for the symbolic “lights off” in support of our planet. But starting 2023, we've stepped things up, breathing new life into our movement and mission to create the Biggest Hour for Earth.
Up your knowledge
The climate and nature crises are some of the greatest challenges humanity has ever faced. Learn more about what's causing them, what's at stake, and what we must do to turn things around.
Stay Updated
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