Earth Hour is an annual initiative orchestrated by the World Wildlife Fund (WWF), occurring on the final Saturday of March, typically spanning from 8:30 to 9:30 PM local time.

During this event, participants are urged to power down non-essential electric lights for one hour. This symbolic act reflects a collective commitment to the planet and serves as a means to raise awareness about the challenges of climate change and the importance of energy conservation among individuals, communities, and businesses.