| December 2021 | ||
|---|---|---|
| Date | Holiday | Where |
| December-7, Tuesday | Delaware Day | Delaware (Special Days) |
| December-7, Tuesday | Pearl Harbor Day | California (Designated Days) |
| December-7, Tuesday | Pearl Harbor Remembrance Day | Alaska, Illinois, Kansas (Designated Days) |
| December-8, Wednesday | Bodhi Day | Hawaii (Designated Days) |
| December-10, Friday | Jane Addams Day | Illinois (Designated Days) |
| December-11, Saturday | Indiana Day | Indiana (Designated Days) |
| December-15, Wednesday | Bill of Rights Day | Florida, Georgia, Iowa (Designated Days) |
| December-19, Sunday | Senator Hattie W. Caraway Day | Arkansas (Memorial Days) |
| December-20, Monday | Sakada Day | Hawaii (Designated Days) |
| December-21, Tuesday | Homeless Persons' Memorial Day | Florida (Designated Days) |
| December-23, Thursday | Christmas Eve | Arkansas, Indiana, Kentucky, North Carolina, Oklahoma, Virginia (Public Holidays) |
| December-23, Thursday | Presidents' Day | Ohio (Public Holidays) |
| December-24, Friday | Christmas | New York Stock Exchange (NYSE Holidays 2021) |
| December-24, Friday | Christmas | Alabama, Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, Federal, Florida, Georgia, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wyoming (Public Holidays) |
| December-24, Friday | Christmas | US Banks (US Bank Holidays 2021) |
| December-24, Friday | Christmas | United States Postal Service (USPS Holidays 2021) |
| December-24, Friday | Christmas Eve | Wisconsin (Public Holidays) |
| December-25, Saturday | Christmas | Massachusetts, New York, Wisconsin (Public Holidays) |
| December-27, Monday | Boxing Day | North Carolina, South Carolina (Public Holidays) |
| December-27, Monday | Christmas | Rhode Island (Public Holidays) |
| December-30, Thursday | New Year's Eve | Michigan (Public Holidays) |
| December-31, Friday | New Year's Day 2022 | Federal, Nebraska (Public Holidays) |
| December-31, Friday | New Year's Eve | Kentucky, Minnesota, Tennessee, Wisconsin (Public Holidays) |
| December-31, Friday | New Year’s Day 2022 | US Banks (US Bank Holidays 2021) |
| December-31, Friday | New Year’s Day 2022 ** | Alaska, Michigan (Public Holidays) |
| December-31, Friday | New Year’s Eve | Alabama (Public Holidays) |