Earth Hour

* Earth Hour is a global movement promoting environmental awareness and action.
 • Organized by World Wide Fund for Nature (WWF).
 • Started in 2007 in Sydney as a lights-off event.
 • Observed annually at the end of March (8:30–9:30 PM).
 • Now celebrated in 190+ countries.
 • 2026: 20-year milestone marked in Gwalior by WWF India and MoEFCC.