Earth Hour Day 2025 Theme. Pledge to switch off lights for earth hour at 8.30pm on 22 march 2025 and #giveanhourforearth by taking any action for at least 60 minutes to: On april 22, 2025, earth day will turn 55 years old — a perfect moment to reflect on how earth day has made a lasting impact on our planet and proof that an engaged public.

Learn how you can make a positive difference through events or other initiatives. This year we will shine a spotlight on renewable energy — for our power, our people, and our planet.