Earth Hour is held on the last Saturday in March every year at 20:30 local time

Earth Hour is a global event proposed by the World Wildlife Fund to respond to global climate change. The energy-saving event sees households and businesses turn off unnecessary lights and energy-intensive products for one hour to show their support for action on climate change.

The purpose of Earth Hour is not to save electricity, but to make the public aware of the importance of protecting the earth, improve everyone's awareness of environmental protection, and develop good habits of environmental protection in daily life .

Extended information:

Earth Hour in 2019 will continue to meet the public at 8:30 pm on March 30.

It is different from previous years. Yes, for this year’s Earth Hour event, all WWF offices around the world will share the same theme - living with nature, paying attention to the increasingly serious issue of biodiversity decline, and setting the stage for the 2020 United Nations hosted by China. The Biodiversity Conference is being warmed up in advance.

At that time, WWF China will join hands with Shenzhen One Planet Foundation (OPF) and Beijing Non-Governmental Organization International Exchange Association to host Earth Hour in China. A series of activities and a lights-out ceremony were held at the Beijing Olympic Tower.

Baidu Encyclopedia—Earth Hour