Earth Hour is on the last Saturday of March every year.

The Earth Hour proposed by the World Wide Fund for Nature (WWF) in response to global climate change advocates that at 2:3 p.m. local time on the last Saturday of March every year (2: 3 p.m. Earth Hour time in 22), households and business users should turn off unnecessary lights and power-consuming products for one hour, so as to show their support for climate change action.

At present, the climate change caused by excessive carbon dioxide emissions has greatly threatened the survival of human beings on earth. Therefore, only by changing the attitude of the global public towards carbon dioxide emissions can the public reduce the impact of this threat on the world.

Earth Hour significance:

1. Earth Hour is exporting an environmental protection concept. Everyone knows the topic of environmental protection, and it will be talked about, but it is not always turned into practical action. "Earth Hour" is not a change from zero to one hundred, but makes everyone willing to work hard for the change from zero to one! From conservation to environmental protection, everyone can practice it.

2. The significance of Earth Hour lies not only in turning off the lights conveniently this time, but also in saving energy this time. This hour makes people return from bright lights to the quiet of the night, the warmth of candlelight and the brightness of the starry sky. Only by experiencing the surrounding environment with your heart can you truly realize the harmony between man and nature and realize the preciousness of environmental resources.