Sign up for WWF's Earth Hour

WWF's Earth Hour is a unique annual phenomenon that focuses the world's attention on our amazing planet, and how we need to protect it. At 8.30pm on 23 March hundreds of millions of people will turn off their lights for one hour, on the same night, all across the world in a huge, symbolic show of support.

Together we have the power to make change happen. Sign up to WWF's Earth Hour now and do it in the dark to show your support for the switch to a better energy future.

To sign up as a school, please use our schools sign up form

To sign up as a business, please use this form.

To sign up as an organisation, please use this form.



By providing your email address, you'll be agreeing to receive emails from us - we won't share your details and you can unsubscribe at any time.

Outside of UK/Ireland? Sign up here


If you provide your mobile we'll send you special Earth Hour content, text reminders and contact you to tell you more about our work. You can opt out at any time.