In celebration of “Earth Hour,” on Saturday night the Las Vegas Strip will shine a little less bright for 60 minutes.

Casinos including Caesars Palace, Luxor, MGM Grand, Excalibur and Planet Hollywood will dim their exterior lights between the hours of 7:30 p.m. and 8:30 p.m. in an effort to raise awareness for climate change, according to the Las Vegas Review-Journal. Las Vegas has taken part in Earth Day seven times. The Eiffel Tower and the Acropolis join the Strip resorts in the annual worldwide effort.

According to, “Earth Hour is a worldwide grassroots movement uniting people to protect the planet, and is organised by WWF. Engaging a massive mainstream community on a broad range of environmental issues, Earth Hour was famously started as a lights-off event in Sydney, Australia in 2007. Since then it has grown to engage more than 7000 cities and towns worldwide, and the one-hour event continues to remain the key driver of the now larger movement.”