Today is Martin Luther King Jr. Day!⁠ ⁠ The MLK Holiday is observed each year on the third Monday in January to celebrate the life and achievements of Dr. Martin Luther King Jr. ⁠ ⁠ Did you know that the MLK Holiday is meant to be a "day on, not a day off"? This federal holiday is a national day of service and Americans are encouraged to participate to help improve their local communities as well as honor Dr. Martin Luther King Jr.