Earth Hour marked worldwide!

Eriko Ukimura plays the violin during the Earth Hour in Tokyo. The light at a Tokyo hotel lobby was turned off momentarily on Saturday as part of global campaign to raise awareness on environmental issues.

Indonesian activists hold candles during a candle light vigil marking Earth Hour, in the main business district in Jakarta, Indonesia.

Performers wearing luminous costumes forming the words Earth Hour as they entertain the crowd during the symbolic switching off of the lights known as Earth Hour Saturday at Quezon city northeast of Manila, Philippines.

Filipinos, wearing luminous shirts and bracelets, dance the Zumba during the symbolic switching off of the lights known as Earth Hour

The Rashtrapati Bhawan (President's House) stands in darkness after lights were turned out for one hour to mark Earth Hour in New Delhi.

The Rashtrapati Bhawan (President's House) is seen lit before lights were turned off to mark Earth Hour in New Delhi.

Temple of Dawn is seen moments after its lights are turned off for Earth Hour 2015 in Bangkok, Thailand , Saturday, March 28, 2015.

The Taipei 101 Building is seen lit up before the Earth Hour while it got all darkened up during the Earth Hour. Around the world, people and organisations will be turning their lights off from 8 30 to 9 30 pm local time.