Millions of people around the world switch off their lights for Earth Hour
at 8.30pm (20:30) in their local times on the last Saturday of March each year.
In 2013, Earth Hour occurs one week earlier, on March 23.
Earth Hour is a worldwide event organized by the World Wildlife Fund
(WWF) and held towards the
end of March annually, encouraging households and businesses to turn off
their
non-essential lights for one hour to raise awareness about the need to
take action on climate change. The event, conceived by WWF and Leo
Burnett,
first took place in 2007, when 2.2 million residents of Sydney
participated
by turning off all non-essential lights.
Following Sydney's lead, many other cities around the world adopted the
event
in 2008. Earth
Hour 2013 will be held on March 23, 2013 from 8:30 p.m. to 9:30 p.m.,
at participants' local time.
Some people enjoy Earth Hour with a candle-lit dinner or a candle-lit bath,
while others host large events or parties, either in darkness or with candles,
to celebrate Earth Hour.
Millions of people around the world switch off their lights for Earth Hour
at 8.30pm (20:30) in their local times on the last Saturday of March each year.
In 2013, Earth Hour occurs one week earlier, on March 23.
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