Why is MLK Day on the 3rd Monday?

Why is MLK Day on the 3rd Monday?

King was born on Jan. 15, 1929, in Atlanta. ... MLK Day is observed on the third Monday in January because of the Uniform Monday Holiday Act, a bill signed into law in 1968 and enacted in 1971. As passed, the mandate moved commemorations for George Washington's birthday, Memorial Day and Labor Day permanently to Mondays.