About us / Overview

Earth Hour is a global campaign launched by the World Wild Life Fund (WWF) to inspire governments, businesses, communities and individuals to take a stand against climate change. It is held on a Saturday in March annually, from 8.30 pm to 9.30 pm local time.

It is the largest environment campaign in the history of our planet, successfully uniting the world towards taking collective action by switching off non-essential lights for one hour in celebration of our planet.

Earth Hour was launched in Sydney, Australia in 2007, where 2.2 million individuals and more than 2,000 businesses turned their lights off for one hour. Just a year later, Earth Hour reached 370 cities and towns in more than 35 countries across 18 time zones and the campaign shifted from a ‘Sydney Event’ to a ‘Global Sustainability Movement’. Since then, every year Earth Hour sets new standards and breaks its own records on mass participation and support. 2010 received participation from a record 1.3 billion individuals across 4616 cities in 128 countries globally which includes our Island nation, which took part in Earth Hour officially for the first time.

Notable landmarks that switched off in support for Earth Hour 2011 were:

  • Times Square, New York
  • London Eye
  • Eiffel Tower, Paris
  • Brandenburg Gate, Berlin
  • Kronborg Castle, Denmark
  • Obelisco, Buenos Aires
  • Sydney Harbour Bridge and Opera House
  • Grand Place of Brussels, Belgium
  • Christ the Redeemer, Rio de Janeiro
  • WTC Tower 3, Beijing
  • Gateway of India, Mumbai
  • Alhambra, Spain
  • National Mausoleum, Pakistan
  • Boudhanath Stupa, Nepal
  • Table Mountain, Cape Town
  • 101 Financial Building, Taiwan
  • Duomo, Milan
  • Davis Station, Antarctica
  • Castle of Schoenbrunn, Vienna
  • House of Culture, Belize
  • City Hall, Bermuda
  • Tivoli, Copenhagen
  • Government Buildigs, Guyaquil
  • Tower of the Reformer, Guatemala
  • Presidential Palace, Honduras
  • Parliament, Budapest
  • Kuwait Towers
  • President’s Castle, Latvia
  • Presidential Palace, Peru
  • Leinster House, Dublin
  • Namsan Tower, Seoul
  • Taj Hotels, Mumbai and Delhi
  • Presidential Palace, Peru
  • Royal Palace, Bangkok
  • Presidential Palace, Honduras
  • The Savoy and Robert Albert Hall, London
  • Royal Castle, Sweden
  • Ngoc Son Temple, Vietnam
  • Budapest great Synagogue
  • Helsinki Cathedral
  • Victoria Falls, Zimbabwe
  • Bosphorus Bridge, Istanbul
  • 25 April Bridge, Portugal
  • Old Bridge, Bosnia
  • Government House, Hong Kong
  • Burj Khalifa, Dubai
  • Yayasan Complex, Brunei
  • Riverside, Phnom Penh
  • City Hall Buildings, Montreal and Ottawa
  • Niagara Falls, Canada
  • Plaza de Armas Fountain, Santiago
  • City Walls, Croatia
  • Presidential Palace, Cyprus
  • Queen’s Palace, Madagascar
  • Sunway Pyramid, Malaysia
  • Presidential Residence, Maldives
  • Sky Tower, Auckland
  • Parliament Buildings, Nothern Ireland
  • Bojnice Castle, Slovakia
  • Milad Tower, Tehran
  • Edinburgh Castle, Scotland
  • Bucharest Parliament Palace, Romania
  • First City Plaza, Nigeria

Earth Hour in Sri Lanka

Sri Lanka officially joined the Earth Hour movement in 2010. Environment Minister of that time Hon .ChampikaRanawaka took the lead to support Earth Hour Sri Lanka and organized the first Earth Hour event in Sri Lanka at the Environment ministry premises. All Government institutions switched off non-essential lights during the Earth Hour and showed its support.

Many private institutions such as Fonterra Lanka, Expolanka Group of companies, Hilton Residencies, Unilever to name a few, showed its support for Earth Hour and celebrated Earth Hour.

We're doing it to tackle climate change

WWF believes there is still time to avoid the worst impacts of climate change. But we need to act now. Every registration for Earth Hour adds to our message to government that we want urgent action to tackle climate change and safeguard the natural world.

WHAT IS CLIMATE CHANGE?