| 1 Jan | Friday | New Year's Day | Federal Holiday | |
| 6 Jan | Wednesday | Epiphany | Christian | |
| 7 Jan | Thursday | Orthodox Christmas Day | Orthodox | |
| 13 Jan | Wednesday | Stephen Foster Memorial Day | Observance | |
| 14 Jan | Thursday | Orthodox New Year | Orthodox | |
| 18 Jan | Monday | Martin Luther King Jr. Day | Federal Holiday | |
| 18 Jan | Monday | Robert E. Lee's Birthday | State holiday | Mississippi |
| 18 Jan | Monday | Robert E. Lee's Birthday | State holiday | Alabama |
| 18 Jan | Monday | Idaho Human Rights Day | State holiday | Idaho |
| 18 Jan | Monday | Civil Rights Day | State holiday | Arizona, New Hampshire |
| 19 Jan | Tuesday | Robert E. Lee's Birthday | State holiday | Florida |
| 19 Jan | Tuesday | Confederate Heroes' Day | State holiday | Texas |
| 20 Jan | Wednesday | Inauguration Day | State holiday | DC |
| 20 Jan | Wednesday | Inauguration Day | Federal Holiday | DC, MD, VA |
| 28 Jan | Thursday | Tu Bishvat/Tu B'Shevat | Jewish holiday | |
| 29 Jan | Friday | Kansas Day | Observance | |
| 1 Feb | Monday | National Freedom Day | Observance | |
| 1 Feb | Monday | First Day of Black History Month | Annual monthly observance | |
| 2 Feb | Tuesday | Groundhog Day | Observance | |
| 4 Feb | Thursday | Rosa Parks Day | Local observance | California, Missouri |
| 5 Feb | Friday | National Wear Red Day | Observance | |
| 7 Feb | Sunday | Super Bowl | Sporting event | |
| 12 Feb | Friday | Lincoln's Birthday | State holiday | CT, IL, MO, NY |
| 12 Feb | Friday | Lincoln's Birthday | Local observance | Florida |
| 12 Feb | Friday | Chinese New Year | Observance | |
| 14 Feb | Sunday | Valentine's Day | Observance | |
| 14 Feb | Sunday | Statehood Day | Local observance | Arizona |
| 15 Feb | Monday | Presidents' Day | Federal Holiday | All except DE, GA, IA, IN, KS, KY, LA, NC, NM, RI, WI |
| 15 Feb | Monday | Daisy Gatson Bates Day | State holiday | Arkansas |
| 15 Feb | Monday | Susan B. Anthony's Birthday | Local observance | CA, FL, NY, WI |
| 16 Feb | Tuesday | Shrove Tuesday/Mardi Gras | State holiday | AL, FL, LA, MS |
| 16 Feb | Tuesday | Shrove Tuesday/Mardi Gras | Observance, Christian | |
| 16 Feb | Tuesday | Elizabeth Peratrovich Day | Local observance | Alaska |
| 17 Feb | Wednesday | Ash Wednesday | Christian | |
| 26 Feb | Friday | Purim | Jewish holiday | |
| 28 Feb | Sunday | Linus Pauling Day | Local observance | Oregon |
| 1 Mar | Monday | St. David's Day | Observance, Christian | |
| 1 Mar | Monday | Casimir Pulaski Day | Local observance | Illinois |
| 1 Mar | Monday | First Day of Women's History Month | Annual monthly observance | |
| 2 Mar | Tuesday | Texas Independence Day | State holiday | Texas |
| 2 Mar | Tuesday | Read Across America Day | Observance | |
| 2 Mar | Tuesday | Town Meeting Day | State holiday | Vermont |
| 5 Mar | Friday | Employee Appreciation Day | Observance | |
| 11 Mar | Thursday | Isra and Mi'raj | Muslim | |
| 14 Mar | Sunday | Daylight Saving Time starts | Clock change/Daylight Saving Time | |
| 17 Mar | Wednesday | St. Patrick's Day | Observance, Christian | |
| 17 Mar | Wednesday | Evacuation Day | State holiday | Massachusetts |
| 20 Mar | Saturday | March Equinox | Season | |
| 25 Mar | Thursday | Maryland Day | Local observance | Maryland |
| 26 Mar | Friday | Prince Jonah Kuhio Kalanianaole Day | State holiday | Hawaii |
| 28 Mar | Sunday | Palm Sunday | Christian | |
| 28 Mar | Sunday | Passover (first day) | Jewish holiday | |
| 29 Mar | Monday | Seward's Day | State holiday | Alaska |
| 29 Mar | Monday | National Vietnam War Veterans Day | Observance | |
| 31 Mar | Wednesday | César Chávez Day | State holiday | AZ, CA, CO, MI, NM, NV, TX, UT, WA, WI |
| 1 Apr | Thursday | Maundy Thursday | Christian | |
| 2 Apr | Friday | Good Friday | State holiday | CT, DE, HI, IN, KY, LA, NC, ND, NJ, TN, TX |
| 2 Apr | Friday | Pascua Florida Day | Local observance | Florida |
| 3 Apr | Saturday | Holy Saturday | Christian | |
| 4 Apr | Sunday | Last Day of Passover | Jewish holiday | |
| 4 Apr | Sunday | Easter Sunday | Observance, Christian | |
| 5 Apr | Monday | Easter Monday | Observance, Christian | |
| 6 Apr | Tuesday | National Tartan Day | Observance | |
| 6 Apr | Tuesday | National Library Workers' Day | Observance | |
| 8 Apr | Thursday | Yom HaShoah | Jewish commemoration | |
| 13 Apr | Tuesday | Ramadan Starts | Muslim | |
| 13 Apr | Tuesday | Thomas Jefferson's Birthday | Observance | |
| 15 Apr | Thursday | Yom Ha'atzmaut | Jewish holiday | |
| 15 Apr | Thursday | Tax Day | Observance | |
| 15 Apr | Thursday | Father Damien Day | Local observance | Hawaii |
| 16 Apr | Friday | Emancipation Day | State holiday | DC |
| 19 Apr | Monday | Patriot's Day | State holiday | Maine, Massachusetts |
| 19 Apr | Monday | Boston Marathon | Sporting event | |
| 21 Apr | Wednesday | San Jacinto Day | State holiday | Texas |
| 21 Apr | Wednesday | Administrative Professionals Day | Observance | |
| 22 Apr | Thursday | Oklahoma Day | Local observance | Oklahoma |
| 22 Apr | Thursday | Take our Daughters and Sons to Work Day | Observance | |
| 26 Apr | Monday | Confederate Memorial Day | State holiday | Mississippi |
| 26 Apr | Monday | Confederate Memorial Day | State holiday | Alabama |
| 26 Apr | Monday | Confederate Heroes' Day | Local observance | Florida |
| 26 Apr | Monday | State Holiday | State holiday | Georgia |
| 30 Apr | Friday | Lag BaOmer | Jewish holiday | |
| 30 Apr | Friday | Orthodox Good Friday | Orthodox | |
| 30 Apr | Friday | Arbor Day | State holiday | Nebraska |
| 30 Apr | Friday | Kentucky Oaks | Sporting event | |
| 1 May | Saturday | Orthodox Holy Saturday | Orthodox | |
| 1 May | Saturday | Kentucky Derby | Sporting event | |
| 1 May | Saturday | Law Day | Observance | |
| 1 May | Saturday | Loyalty Day | Observance | |
| 1 May | Saturday | National Explosive Ordnance Disposal (EOD) Day | Observance | |
| 1 May | Saturday | Lei Day | Local observance | Hawaii |
| 2 May | Sunday | Orthodox Easter | Orthodox | |
| 3 May | Monday | Orthodox Easter Monday | Orthodox | |
| 4 May | Tuesday | Kent State Shootings Remembrance | Local observance | Ohio |
| 4 May | Tuesday | Rhode Island Independence Day | Local observance | Rhode Island |
| 5 May | Wednesday | Cinco de Mayo | Observance | |
| 6 May | Thursday | National Nurses Day | Observance | |
| 6 May | Thursday | National Day of Prayer | Observance | |
| 7 May | Friday | Truman Day observed | State holiday | Missouri |
| 7 May | Friday | Military Spouse Appreciation Day | Observance | |
| 8 May | Saturday | Lailat al-Qadr | Muslim | |
| 8 May | Saturday | Truman Day | State holiday | Missouri |
| 8 May | Saturday | Victory in Europe Day | Observance | |
| 9 May | Sunday | Mother's Day | Observance | |
| 10 May | Monday | Confederate Memorial Day | Local observance | North Carolina |
| 10 May | Monday | Confederate Memorial Day | State holiday | South Carolina |
| 13 May | Thursday | Ascension Day | Christian | |
| 13 May | Thursday | Eid al-Fitr | Muslim | |
| 14 May | Friday | Native American Day | State Observation | Wyoming |
| 15 May | Saturday | Peace Officers Memorial Day | Observance | |
| 15 May | Saturday | Armed Forces Day | Observance | |
| 15 May | Saturday | Preakness Stakes | Sporting event | |
| 17 May | Monday | Shavuot | Jewish holiday | |
| 19 May | Wednesday | Emergency Medical Services for Children Day | Observance | |
| 21 May | Friday | National Defense Transportation Day | Observance | |
| 22 May | Saturday | National Maritime Day | Observance | |
| 22 May | Saturday | Harvey Milk Day | Local observance | California |
| 23 May | Sunday | Pentecost | Christian | |
| 24 May | Monday | Whit Monday | Christian | |
| 25 May | Tuesday | National Missing Children's Day | Observance | |
| 30 May | Sunday | Trinity Sunday | Christian | |
| 31 May | Monday | Memorial Day | Federal Holiday | |
| 31 May | Monday | Jefferson Davis' Birthday | Local observance | Mississippi |
| 1 Jun | Tuesday | Statehood Day | Local observance | Kentucky, Tennessee |
| 2 Jun | Wednesday | Native American Day | State Observation | Arizona |
| 3 Jun | Thursday | Corpus Christi | Christian | |
| 3 Jun | Thursday | Jefferson Davis' Birthday | Local observance | Florida |
| 5 Jun | Saturday | Belmont Stakes | Sporting event | |
| 6 Jun | Sunday | D-Day | Observance | |
| 7 Jun | Monday | Jefferson Davis' Birthday | State holiday | Alabama |
| 11 Jun | Friday | Kamehameha Day | State holiday | Hawaii |
| 13 Jun | Sunday | Bunker Hill Day | Local observance | Massachusetts |
| 14 Jun | Monday | Army Birthday | Observance | |
| 14 Jun | Monday | Flag Day | Observance | |
| 19 Jun | Saturday | Juneteenth | State holiday | New Jersey, New York |
| 19 Jun | Saturday | Juneteenth | Observance | |
| 19 Jun | Saturday | Juneteenth Independence Day | State holiday | Massachusetts |
| 19 Jun | Saturday | Emancipation Day | State holiday | Texas |
| 20 Jun | Sunday | Father's Day | Observance | |
| 20 Jun | Sunday | West Virginia Day | State holiday | West Virginia |
| 20 Jun | Sunday | American Eagle Day | Observance | |
| 20 Jun | Sunday | June Solstice | Season | |
| 21 Jun | Monday | West Virginia Day observed | State holiday | West Virginia |
| 4 Jul | Sunday | Independence Day | Federal Holiday | |
| 5 Jul | Monday | Independence Day observed | Federal Holiday | |
| 13 Jul | Tuesday | Nathan Bedford Forrest Day | Local observance | Tennessee |
| 14 Jul | Wednesday | Bastille Day | Observance | |
| 16 Jul | Friday | Rural Transit Day | Observance | |
| 18 Jul | Sunday | Tisha B'Av | Jewish holiday | |
| 20 Jul | Tuesday | Eid al-Adha | Muslim | |
| 23 Jul | Friday | Pioneer Day observed | State holiday | Utah |
| 24 Jul | Saturday | Pioneer Day | State holiday | Utah |
| 25 Jul | Sunday | Parents' Day | Observance | |
| 27 Jul | Tuesday | National Korean War Veterans Armistice Day | Observance | |
| 1 Aug | Sunday | Colorado Day | Local observance | Colorado |
| 4 Aug | Wednesday | Coast Guard Birthday | Observance | |
| 7 Aug | Saturday | Purple Heart Day | Observance | |
| 9 Aug | Monday | Victory Day | State holiday | Rhode Island |
| 10 Aug | Tuesday | Muharram | Muslim | |
| 15 Aug | Sunday | Assumption of Mary | Christian | |
| 16 Aug | Monday | Bennington Battle Day | State holiday | Vermont |
| 19 Aug | Thursday | National Aviation Day | Observance | |
| 20 Aug | Friday | Hawaii Statehood Day | State holiday | Hawaii |
| 21 Aug | Saturday | Senior Citizens Day | Observance | |
| 26 Aug | Thursday | Women's Equality Day | Observance | |
| 27 Aug | Friday | Lyndon Baines Johnson Day | State holiday | Texas |
| 6 Sep | Monday | Labor Day | Federal Holiday | |
| 7 Sep | Tuesday | Rosh Hashana | Jewish holiday | |
| 7 Sep | Tuesday | Rosh Hashana | State holiday | Texas |
| 9 Sep | Thursday | California Admission Day | Local observance | California |
| 11 Sep | Saturday | Patriot Day | Observance | |
| 11 Sep | Saturday | Carl Garner Federal Lands Cleanup Day | Observance | |
| 12 Sep | Sunday | National Grandparents Day | Observance | |
| 16 Sep | Thursday | Yom Kippur | Jewish holiday | |
| 16 Sep | Thursday | Yom Kippur | State holiday | Texas |
| 17 Sep | Friday | Constitution Day and Citizenship Day | Observance | |
| 17 Sep | Friday | National POW/MIA Recognition Day | Observance | |
| 18 Sep | Saturday | Air Force Birthday | Observance | |
| 18 Sep | Saturday | National CleanUp Day | Observance | |
| 21 Sep | Tuesday | First Day of Sukkot | Jewish holiday | |
| 22 Sep | Wednesday | Emancipation Day | Local observance | Ohio |
| 22 Sep | Wednesday | September Equinox | Season | |
| 24 Sep | Friday | Native American Day | State Observation | California, Nevada |
| 24 Sep | Friday | American Indian Heritage Day | State Observation | Montana, Texas |
| 24 Sep | Friday | Michigan Indian Day | State Observation | Michigan |
| 26 Sep | Sunday | Gold Star Mother's Day | Observance | |
| 27 Sep | Monday | Last Day of Sukkot | Jewish holiday | |
| 27 Sep | Monday | American Indian Day | State Observation | Tennessee |
| 28 Sep | Tuesday | Shmini Atzeret | Jewish holiday | |
| 29 Sep | Wednesday | Simchat Torah | Jewish holiday | |
| 4 Oct | Monday | Feast of St Francis of Assisi | Christian | |
| 4 Oct | Monday | Frances Xavier Cabrini | State holiday | Colorado |
| 4 Oct | Monday | Child Health Day | Observance | |
| 9 Oct | Saturday | Leif Erikson Day | Observance | |
| 11 Oct | Monday | Columbus Day | Federal Holiday | |
| 11 Oct | Monday | Columbus Day | State Legal Holiday | Tennessee |
| 11 Oct | Monday | Columbus Day | State holiday | 22 states |
| 11 Oct | Monday | Fraternal Day | State holiday | Alabama |
| 11 Oct | Monday | Yorktown Victory Day | State holiday | Virginia |
| 11 Oct | Monday | Discoverers' Day | State Observation | Hawaii |
| 11 Oct | Monday | Native American Day | State holiday | South Dakota |
| 11 Oct | Monday | Native American Day | State Observation | Oklahoma |
| 11 Oct | Monday | Indigenous People's Day (Tentative Date) | State Observation | CA, ID, LA, MI, MN, OR |
| 11 Oct | Monday | Indigenous People's Day | State holiday | DC, ME, NM |
| 11 Oct | Monday | Indigenous People's Day | State Observation | 28 states |
| 11 Oct | Monday | American Indian Heritage Day | State holiday | Alabama |
| 13 Oct | Wednesday | Navy Birthday | Observance | |
| 15 Oct | Friday | White Cane Safety Day | Observance | |
| 15 Oct | Friday | Boss's Day | Observance | |
| 16 Oct | Saturday | Sweetest Day | Observance | 13 states |
| 18 Oct | Monday | Alaska Day | State holiday | Alaska |
| 19 Oct | Tuesday | The Prophet's Birthday | Muslim | |
| 29 Oct | Friday | Nevada Day | State holiday | Nevada |
| 31 Oct | Sunday | Halloween | Observance | |
| 1 Nov | Monday | All Saints' Day | Christian | |
| 2 Nov | Tuesday | All Souls' Day | Christian | |
| 2 Nov | Tuesday | Election Day | Observance | |
| 2 Nov | Tuesday | Election Day | State holiday | Virginia |
| 4 Nov | Thursday | Diwali/Deepavali | Observance, Hinduism | |
| 7 Nov | Sunday | New York City Marathon | Sporting event | |
| 7 Nov | Sunday | Daylight Saving Time ends | Clock change/Daylight Saving Time | |
| 10 Nov | Wednesday | Marine Corps Birthday | Observance | |
| 11 Nov | Thursday | Veterans Day | Federal Holiday | |
| 25 Nov | Thursday | Thanksgiving Day | Federal Holiday | |
| 26 Nov | Friday | State Holiday | State holiday | Georgia |
| 26 Nov | Friday | Presidents' Day | State holiday | New Mexico |
| 26 Nov | Friday | Lincoln's Birthday/Lincoln's Day | State holiday | Indiana |
| 26 Nov | Friday | Day After Thanksgiving | State holiday | 20 states |
| 26 Nov | Friday | Family Day | State holiday | Nevada |
| 26 Nov | Friday | Acadian Day | State holiday | Louisiana |
| 26 Nov | Friday | Black Friday | Observance | |
| 26 Nov | Friday | American Indian Heritage Day | State holiday | Maryland |
| 26 Nov | Friday | Native American Heritage Day | Observance | |
| 26 Nov | Friday | Native American Heritage Day | State holiday | Washington |
| 28 Nov | Sunday | First Sunday of Advent | Christian | |
| 29 Nov | Monday | Chanukah/Hanukkah (first day) | Jewish holiday | |
| 29 Nov | Monday | Cyber Monday | Observance | |
| 1 Dec | Wednesday | Rosa Parks Day | State Observation | Alabama |
| 1 Dec | Wednesday | Rosa Parks Day | Local observance | Ohio, Oregon |
| 6 Dec | Monday | Last Day of Chanukah | Jewish holiday | |
| 6 Dec | Monday | St Nicholas Day | Observance | |
| 7 Dec | Tuesday | Pearl Harbor Remembrance Day | Observance | |
| 8 Dec | Wednesday | Feast of the Immaculate Conception | Christian | |
| 12 Dec | Sunday | Feast of Our Lady of Guadalupe | Christian | |
| 13 Dec | Monday | National Guard Birthday | Observance | |
| 15 Dec | Wednesday | Bill of Rights Day | Observance | |
| 17 Dec | Friday | Pan American Aviation Day | Observance | |
| 17 Dec | Friday | Wright Brothers Day | Observance | |
| 21 Dec | Tuesday | December Solstice | Season | |
| 24 Dec | Friday | Day off for Christmas Day | Federal Holiday | |
| 24 Dec | Friday | Christmas Eve | Observance, Christian | |
| 24 Dec | Friday | Christmas Eve | State holiday | KS, KY, MI, NC, ND, OK, SC, TX, VA, WI |
| 25 Dec | Saturday | Christmas Day | Federal Holiday | |
| 26 Dec | Sunday | Kwanzaa (first day) | Observance | |
| 26 Dec | Sunday | Day After Christmas Day | State holiday | KS, NC, SC, TX |
| 31 Dec | Friday | Day off for New Year's Day | Federal Holiday | |
| 31 Dec | Friday | New Year's Eve | Observance | |
| 31 Dec | Friday | New Year's Eve | State holiday | LA, MI, WI |