If you're passing through St. Paul Saturday evening and the city looks a little dim, don't worry. It's not a power outage, it's Earth Hour.
Earth Hour 2016 is a global movement to encourage energy conservation.
St. Paul Mayor Chris Coleman announced that the city will participate for the sixth year in a row.
In honor of the event, several St. Paul landmarks – including the Science Museum of Minnesota, Xcel Energy Center, Metropolitan State University and other city buildings – will turn off lights to inspire more people to start saving energy.
The City of St. Paul encourages residents, businesses and places of worship to participate by turning off any lights that are not necessary.
The event begins at 8:30 p.m. and ends at 9:30 p.m.
USA Today says 178 countries and territories will participate this year. Some landmarks across the globe that will be dimmed include the Empire State Building, Eiffel Tower and Buckingham Palace.
Earth Hour started in 2007 in Sydney, Australia. Now more than 7,000 cities and towns participate.
You can join in on conversations and stay updated on social media with #EarthHour2016.