Monday is Martin Luther King Day. Here's what to know about the businesses and services that are closed for the holiday in Arizona.

National and state parks in Arizona will waive entry fees for Dr. Martin Luther King Jr. Day. Save money at Grand Canyon, in Sedona and more.

Martin Luther King Jr. Day and Inauguration Day both fall on Jan. 20. Here's what's open and closed on the federal holiday.

MLK Day is a federal holiday, meaning most federal entities close to commemorate the contributions of Martin Luther King Jr.

Martin Luther King Jr. Day is always celebrated on the third Monday in January. It also happens to be Inauguration Day, which is always held on January 20th per the U.S. Constitution. The two typically don’t coincide,