President Mahinda Rajapaksa also took part in the event which lasted for one hour from 8.30 to 9.30pm on Saturday.
The Ministry of Power and Energy said that Saturday’s saving showed that with commitment the public can save electricity.
Earth Hour engages hundreds of millions of people from all corners of the globe to take positive actions for the environment and celebrate their commitment with the people of the world by switching off their lights for one designated hour.
The aim of Earth Hour 2012 was to show the actions that people, businesses and governments world-wide are taking to reduce their environmental impact. (Colombo Gazette)