Tonight is Earth Hour 2021 – Here are six ways YOU can participate!
Read on to explore all the different ways you can take part in Earth Hour 2021. No matter where you are in the world, you can make an impact and join us for the Hour as we speak up for nature! Most important, remember to turn out all lights from 8:30 pm to 9:30 pm!
In light of the COVID-19 pandemic, the Earth Hour global organizing team is recommending all individuals to take part online / digitally when possible. If you are planning to be in a public space or are thinking of spending the Hour with friends and family outside your home, please follow local guidelines, remember to wear a mask, and maintain social distancing.
Switch off your lights for an hour

The DNA of the Earth Hour movement. Switch off your lights for an hour on Saturday, March 27, 2021 at 8:30 pm your local time.
Plan on staying in? We’ve put together a list of 20+ things you can do for a memorable (and impactful) on-the-night experience all from comfort of your home!
Attend an event

Browse our directory of on-ground and online events around the world on the night of Earth Hour!
The health and safety of our supporters is our priority – please check your local COVID-19 country guidelines before attending an on-ground event.