The Clark Planetarium is situated within The Gateway at the intersection of 400 West and 100 South in downtown Salt Lake City, Utah, United States. The Clark Planetarium opened in April 2003, replacing the historic Hansen Planetarium under a grant from the Clark Foundation in cooperation with Salt Lake County.

Open hours:
Monday: 10:30 AM – 7:00 PM
Tuesday: 10:30 AM – 7:00 PM
Wednesday: 10:30 AM – 7:00 PM
Thursday: 10:30 AM – 10:00 PM
Friday: 10:30 AM – 11:00 PM
Saturday: 10:30 AM – 11:00 PM
Sunday: 10:30 AM – 7:00 PM