<Li> Memorial Day: last Monday in May (formerly May 30) </Li> <Li> Labor Day: first Monday in September </Li> <Li> Columbus Day: second Monday in October (formerly observed in some states on October 12) </Li> <Li> Veterans Day: fourth Monday in October (formerly November 11; subsequently returned to November 11 effective 1978) </Li>

National holiday act of 1971 (p.l. 90 – 363)