EARTH HOUR is one of the global campaigns of WWF, the world's largest conservation organization, which invites individuals, communities, business practitioners and governments around the world to express their concern for climate change by turning off lights and electronic equipment that are not in use for 1 hour ( 20.30 - 21.30 local time), on every Saturday in the last week of March each year. Earth Hour Jakarta has a work program that is routinely carried out and is environmentally based and energy efficient in addition to an hourly Switch Off every 3rd week in March, namely: Earth Hour Goes to School, Earth Hour Goes to Campus, Workshops and Seminars (Reusable Bag , #BeliYangBaik).