'Earth Hour' observed on Saturday at 8:30 PM
The World Wildlife Fund for Nature observed the 10th anniversary of 'Earth Hour' on Saturday. The worldwide event is held annually encouraging individuals to turn off non-essential lights for one hour, from 8:30 to 9:30 PM local time as a symbol of their commitment to the planet. It was started as a lights-off event in Sydney, Australia, in 2007.