Every year, on the last Saturday in March, Earth Hour is observed. The date for Earth Hour in 2022 is Saturday, March 26, 2022. At 8:30 p.m. local time, Earth Hour will begin and end at 9:30 p.m. local time. The Earth Hour 2022 theme will focus on ‘Shape Our Future‘. This is a pivotal year for everyone and our world. It is up to us to #ShapeOurFuture by raising awareness about the serious issues impacting our world. It was started as a lights-off event in Sydney, Australia, in 2007 to raise awareness for energy consumption and effects on the environment.