UN Headquarters

UN Headquarters Turns Off Lights to Commemorate Earth Hour

28 March 2026

The United Nations commemorates Earth Hour by turning off the lights at UN Headquarters and other buildings around the world. Earth Hour is a global initiative commemorated annually in March to focus attention on people-driven solutions to protect the planet and build a sustainable future.

A view of a dark Secretariat Building and the New York City skyline from across the East River.

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