Sign up for WWF's Earth Hour

Earth Hour is the world's biggest celebration for our amazing planet. At 8.30pm on 28th March hundreds of millions of people from across the world will come together in a symbolic and spectacular light outs display. It's a brilliant reminder that together we can make change happen! Be part of it…

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.