April 4, 2026

Earth hour

  • Earth Hour was observed on March 25 this year.
  • Earth Hour is an annual event that takes place on the last Saturday of March.
  • Earth Hour, organized by World Wildlife Fund (WWF), is a global grassroots movement uniting people to take action on environmental issues and protect the planet.
    • The event was first introduced in Sydney, Australia, in 2007 by WWF and its partners as a symbolic lights-out event to raise awareness about climate change.
  • It is held worldwide to encourage individuals, households, communities and businesses to turn off their non-essential lights for one hour as a symbol for their commitment to the planet.

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