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The listed holidays are legal holidays in Oklahoma.
Dr. Martin Luther King, Jr. Day (third Monday in January)
Washington's Birthday (third Monday in February)
Memorial Day (last Monday in May)
Labor Day (first Monday in September)
New Year's Day (January 1)
Youth Day (the third Sunday in March)
Jefferson Day (April 13)
Oklahoma Day (April 22)
Senior Citizens' Week (begins first Sunday in May)
Senior Citizen Day (Wednesday of Senior Citizens' Week)
Mothers' Day (second Sunday in May)
Juneteenth National Freedom Day (third Saturday in May)
Independence Day (July 4)
Indian Day (first Saturday after full moon in September)
Grandparents' Week (begins on second Sunday in September)
Cherokee Strip Day (September 16)
Oklahoma Historical Day (October 10)
Will Rogers Day (November 4)
Veterans' Day (November 11)
Thanksgiving Day (fourth Thursday in November)
Christmas Day (December 25)
If a legal holiday falls on a Sunday, the following Monday is the holiday.