What is Martin Luther King Jr. Day?
Martin Luther King Jr. Day is the third Monday in January, which places it between the 15th and the 21st and close to King's birthday on 15 January. It was signed into law in 1983 and first observed in 1986, though it took until 2000 for every state to recognise it. It is a federal holiday and also a national day of service, which is unusual: the legislation encourages volunteering rather than simply closing offices.
The next one falls on Monday, 18 January 2027, and this page counts down to the midnight that starts it in whatever time zone your browser reports. For a date of your own, the deadline countdown takes any target and tracks progress against it.