Earth Hour is the world’s largest celebration for our planet. During Earth Hour, hundreds of millions of people around the world turn off their lights for one hour to show their commitment to helping something we all have in common—the planet.

Earth Hour is a visual reminder that the world’s environmental issues don’t have to overwhelm us. Small things we do every day will make a better future and together we can make change happen. So whether you reflect under the stars or celebrate by candlelight, turn off your lights and show you’ll do your part to protect our planet.

We need your help to make our statement seen around the world the strongest it has ever been. Turn out your lights for one hour on Saturday, March 28 at 8:30 p.m. and show your commitment to a better future.

• 2024 Theme Earth Hour- “Uniting for one shared home"

•  2023 Theme Earth Hour- “The Biggest Hour for Earth"

•  2022 Theme Earth Hour- “Shape Our Future"

• 2021 Theme Earth Hour- “Climate Change to Save Earth"

• 2020 Theme Earth Hour- “Climate Action and Sustainable Development”

• 2019 Theme Earth Hour– “#Connect2Earth”

• 2018 Theme Earth Hour- “Biodiversity”

• 2017 Theme Earth Hour- “Our Choice for the Plane”

• 2016 Theme Earth Hour- “Shine a Light on Climate Action”

• 2015 Theme Earth Hour- “Change Climate Change”

• 2014 Theme Earth Hour- “Use Your Power to Make Change a Reality”

• 2013 Theme Earth Hour- “I Will if You Will”

• 2012 Theme Earth Hour- “I Will if You Will” Theme

• 2011 Earth Hour- “Go Beyond the Hour”

• 2010 Theme Earth Hour- “The power of individual action for a sustainable future”

• 2009 Theme Earth Hour- “Vote Earth” Earth Hour

• 2008 Tagline- We’ve Turned the Lights Out. Now it’s Your Turn.