| Date | Weekday | Public holiday name | Public holiday type |
|---|---|---|---|
| January 1 | Monday | New Year's Day | National holiday |
| January 4 | Thursday | World Braille Day | Worldwide observance |
| January 6 | Saturday | Epiphany | Common Local holiday |
| January 7 | Sunday | Orthodox Christmas Day | Orthodox holiday |
| January 7 | Sunday | International Programmers' Day | Worldwide observance |
| January 12 | Friday | Lee-Jackson Day | State holiday |
| January 13 | Saturday | Stephen Foster Memorial Day | Observance |
| January 14 | Sunday | Orthodox New Year | Orthodox holiday |
| January 15 | Monday | Robert E. Lee's Birthday | State holiday |
| January 15 | Monday | Martin Luther King Jr. Day | Public Holiday |
| January 15 | Monday | Idaho Human Rights Day | State holiday |
| January 15 | Monday | Civil Rights Day | State holiday |
| January 19 | Friday | Robert E. Lee's Birthday | State holiday |
| January 19 | Friday | Confederate Heroes' Day | State holiday |
| January 21 | Sunday | World Religion Day | Worldwide observance |
| January 25 | Thursday | Tu Bishvat/Tu B'Shevat | Jewish holiday |
| January 26 | Friday | International Customs Day | Worldwide observance |
| January 27 | Saturday | International Day of Commemoration in Memory of the Victims of the Holocaust | United Nations observance |
| January 28 | Sunday | World Leprosy Day | Worldwide observance |
| January 29 | Monday | Kansas Day | Observance |
| February 1 | Thursday | National Freedom Day | Observance |
| February 2 | Friday | World Wetlands Day | Worldwide observance |
| February 2 | Friday | Groundhog Day | Observance |
| February 2 | Friday | National Wear Red Day | Observance |
| February 4 | Sunday | World Cancer Day | United Nations observance |
| February 4 | Sunday | Rosa Parks Day | Local observance |
| February 4 | Sunday | Super Bowl | Sporting event |
| February 6 | Tuesday | International Day of Zero Tolerance for Female Genital Mutilation | |
| February 7 | Wednesday | Isra and Mi'raj | Muslim holiday |
| February 10 | Saturday | Chinese New Year | Observance |
| February 11 | Sunday | World Day of the Sick | Worldwide observance |
| February 11 | Sunday | International Day of Women and Girls in Science | |
| February 12 | Monday | Lincoln's Birthday | State holiday |
| February 13 | Tuesday | Shrove Tuesday/Mardi Gras | State holiday |
| February 13 | Tuesday | World Radio Day | United Nations observance |
| February 14 | Wednesday | Valentine's Day | Observance |
| February 14 | Wednesday | Statehood Day | Public Holiday |
| February 14 | Wednesday | Ash Wednesday | Christian holiday |
| February 15 | Thursday | Susan B. Anthony's Birthday | Local observance |
| February 16 | Friday | Elizabeth Peratrovich Day | Local observance |
| February 19 | Monday | Daisy Gatson Bates Day | State holiday |
| February 19 | Monday | Presidents' Day | Bank or Public Sector Holiday |
| February 20 | Tuesday | World Day of Social Justice | United Nations observance |
| February 21 | Wednesday | International Mother Language Day | United Nations observance |
| February 28 | Wednesday | Linus Pauling Day | Local observance |
| February 29 | Thursday | Leap Day | Worldwide observance |
| March 1 | Friday | Zero Discrimination Day | United Nations observance |
| March 1 | Friday | Read Across America Day | Observance |
| March 1 | Friday | Self-Injury Awareness Day | Worldwide observance |
| March 1 | Friday | St. David's Day | Observance |
| March 1 | Friday | Employee Appreciation Day | Observance |
| March 2 | Saturday | Texas Independence Day | State holiday |
| March 3 | Sunday | World Wildlife Day | United Nations observance |
| March 4 | Monday | Casimir Pulaski Day | State holiday |
| March 5 | Tuesday | Town Meeting Day | State holiday |
| March 8 | Friday | International Women's Day | United Nations observance |
| March 10 | Sunday | Daylight Saving Time starts | Daylight Saving Time |
| March 11 | Monday | Ramadan starts | Public Holiday |
| March 14 | Thursday | World Kidney Day | Worldwide observance |
| March 17 | Sunday | St. Patrick's Day | Local holiday |
| March 17 | Sunday | Evacuation Day | State holiday |
| March 18 | Monday | Evacuation Day observed | State holiday |
| March 19 | Tuesday | March equinox | Season |
| March 20 | Wednesday | International Day of Happiness | United Nations observance |
| March 21 | Thursday | World Down Syndrome Day | United Nations observance |
| March 21 | Thursday | International Day for the Elimination of Racial Discrimination | United Nations observance |
| March 21 | Thursday | International Day of Forests | United Nations observance |
| March 21 | Thursday | World Poetry Day | United Nations observance |
| March 21 | Thursday | International Day of Nowruz | United Nations observance |
| March 22 | Friday | World Water Day | United Nations observance |
| March 23 | Saturday | World Meteorological Day | United Nations observance |
| March 24 | Sunday | World Tuberculosis Day | United Nations observance |
| March 24 | Sunday | Purim | Jewish holiday |
| March 24 | Sunday | International Day for the Right to the Truth concerning Gross Human Rights Violations and for the Dignity of Victims | United Nations observance |
| March 24 | Sunday | Palm Sunday | Observance |
| March 25 | Monday | Maryland Day | Local observance |
| March 25 | Monday | International Day of Remembrance of Slavery Victims and the Transatlantic Slave Trade | United Nations observance |
| March 25 | Monday | Seward's Day | State holiday |
| March 25 | Monday | International Day of Solidarity with Detained and Missing Staff Members | United Nations observance |
| March 26 | Tuesday | Prince Jonah Kuhio Kalanianaole Day | State holiday |
| March 28 | Thursday | Maundy Thursday | Silent Day |
| March 29 | Friday | National Vietnam War Veterans Day | Observance |
| March 29 | Friday | Good Friday | Silent Day |
| March 30 | Saturday | Holy Saturday | Christian holiday |
| March 30 | Saturday | Earth Hour | Worldwide observance |
| March 31 | Sunday | César Chávez Day | State holiday |
| March 31 | Sunday | Easter Sunday | Observance |
| April 1 | Monday | April Fool's Day | Worldwide observance |
| April 1 | Monday | Easter Monday | National holiday |
| April 1 | Monday | César Chávez Day observed | State holiday |
| April 2 | Tuesday | World Autism Awareness Day | United Nations observance |
| April 2 | Tuesday | Pascua Florida Day | Local observance |
| April 4 | Thursday | United Nations' Mine Awareness Day | United Nations observance |
| April 5 | Friday | Lailat al-Qadr | Public Holiday |
| April 6 | Saturday | International Day of Sport for Development and Peace | United Nations observance |
| April 6 | Saturday | National Tartan Day | Observance |
| April 7 | Sunday | United Nations' World Health Day | United Nations observance |
| April 7 | Sunday | Day of Remembrance of the Victims of the Rwanda Genocide | United Nations observance |
| April 9 | Tuesday | National Library Workers' Day | Observance |
| April 10 | Wednesday | Eid al-Fitr | Public Holiday |
| April 12 | Friday | International Day of Human Space Flight | United Nations observance |
| April 13 | Saturday | Thomas Jefferson's Birthday | Observance |
| April 15 | Monday | Boston Marathon | Sporting event |
| April 15 | Monday | Tax Day | Observance |
| April 15 | Monday | Father Damien Day | Local observance |
| April 15 | Monday | Patriot's Day | State holiday |
| April 16 | Tuesday | Emancipation Day | Public Holiday |
| April 18 | Thursday | International Day for Monuments and Sites | Worldwide observance |
| April 20 | Saturday | Chinese Language Day | |
| April 21 | Sunday | San Jacinto Day | State holiday |
| April 22 | Monday | Oklahoma Day | Local observance |
| April 22 | Monday | Earth Day | |
| April 22 | Monday | Confederate Memorial Day | State holiday |
| April 22 | Monday | State Holiday | State holiday |
| April 23 | Tuesday | Passover (first day) | Jewish holiday |
| April 23 | Tuesday | World Book and Copyright Day | |
| April 23 | Tuesday | English Language Day | |
| April 24 | Wednesday | Administrative Professionals Day | Observance |
| April 25 | Thursday | World Malaria Day | |
| April 25 | Thursday | Take our Daughters and Sons to Work Day | Observance |
| April 26 | Friday | World Intellectual Property Day | |
| April 26 | Friday | Confederate Heroes' Day | State holiday |
| April 26 | Friday | International Chernobyl Disaster Remembrance Day | |
| April 26 | Friday | Arbor Day | Observance |
| April 28 | Sunday | World Day for Safety and Health at Work | |
| April 29 | Monday | Day of Remembrance for all Victims of Chemical Warfare | |
| April 29 | Monday | Confederate Memorial Day | State holiday |
| April 30 | Tuesday | Last day of Passover | Jewish holiday |
| April 30 | Tuesday | International Jazz Day | |
| May 1 | Wednesday | Law Day | Observance |
| May 1 | Wednesday | Loyalty Day | Observance |
| May 1 | Wednesday | Lei Day | Local observance |
| May 2 | Thursday | National Day of Prayer | Observance |
| May 2 | Thursday | World Tuna Day | |
| May 3 | Friday | Orthodox Good Friday | Orthodox holiday |
| May 3 | Friday | Kentucky Oaks | Sporting event |
| May 3 | Friday | World Press Freedom Day | |
| May 4 | Saturday | Kent State Shootings Remembrance | Local observance |
| May 4 | Saturday | Rhode Island Independence Day | Local observance |
| May 4 | Saturday | Orthodox Holy Saturday | Orthodox holiday |
| May 4 | Saturday | National Explosive Ordnance Disposal (EOD) Day | Observance |
| May 4 | Saturday | Kentucky Derby | Sporting event |
| May 5 | Sunday | Cinco de Mayo | Observance |
| May 5 | Sunday | Orthodox Easter | Orthodox holiday |
| May 6 | Monday | Orthodox Easter Monday | Orthodox holiday |
| May 6 | Monday | Yom HaShoah | Jewish holiday |
| May 6 | Monday | National Nurses Day | Observance |
| May 8 | Wednesday | Time of Remembrance and Reconciliation for Those Who Lost Their Lives during the Second World War | |
| May 8 | Wednesday | World Ovarian Cancer Day | |
| May 8 | Wednesday | Truman Day | State holiday |
| May 9 | Thursday | Ascension Day | National holiday |
| May 10 | Friday | Military Spouse Appreciation Day | Observance |
| May 10 | Friday | Confederate Memorial Day | State holiday |
| May 11 | Saturday | World Migratory Bird Day | |
| May 12 | Sunday | Mother's Day | Observance |
| May 12 | Sunday | International Nurses Day | |
| May 14 | Tuesday | Yom Ha'atzmaut | Jewish holiday |
| May 14 | Tuesday | Primary Election Day | State holiday |
| May 15 | Wednesday | International Day of Families | |
| May 15 | Wednesday | Peace Officers Memorial Day | Observance |
| May 17 | Friday | National Defense Transportation Day | Observance |
| May 17 | Friday | World Information Society Day | |
| May 18 | Saturday | Preakness Stakes | Sporting event |
| May 18 | Saturday | Armed Forces Day | Observance |
| May 19 | Sunday | Pentecost | Christian holiday |
| May 20 | Monday | Whit Monday | National holiday |
| May 20 | Monday | World Autoimmune / Autoinflammatory Arthritis Day | |
| May 21 | Tuesday | World Day for Cultural Diversity for Dialogue and Development | |
| May 22 | Wednesday | Harvey Milk Day | Local observance |
| May 22 | Wednesday | International Day for Biological Diversity | |
| May 22 | Wednesday | Emergency Medical Services for Children Day | Observance |
| May 22 | Wednesday | National Maritime Day | Observance |
| May 23 | Thursday | International Day to End Obstetric Fistula | |
| May 25 | Saturday | National Missing Children's Day | Observance |
| May 25 | Saturday | African Liberation Day | |
| May 26 | Sunday | Trinity Sunday | Christian holiday |
| May 26 | Sunday | Lag BaOmer | Jewish holiday |
| May 27 | Monday | Jefferson Davis' Birthday | Local observance |
| May 27 | Monday | Memorial Day | Local observance |
| May 29 | Wednesday | International Day of United Nations Peacekeepers | |
| May 30 | Thursday | Corpus Christi | Common Local holiday |
| May 31 | Friday | World No Tobacco Day | |
| June 1 | Saturday | Statehood Day | Public Holiday |
| June 1 | Saturday | Global Day of Parents | |
| June 3 | Monday | Jefferson Davis' Birthday | Local observance |
| June 4 | Tuesday | International Day of Innocent Children Victims of Aggression | |
| June 5 | Wednesday | World Environment Day | Observance |
| June 6 | Thursday | D-Day | Observance |
| June 8 | Saturday | World Oceans Day | |
| June 8 | Saturday | Belmont Stakes | Sporting event |
| June 11 | Tuesday | Kamehameha Day | State holiday |
| June 12 | Wednesday | Shavuot | Jewish holiday |
| June 12 | Wednesday | World Day Against Child Labour | |
| June 13 | Thursday | International Albinism Awareness Day | |
| June 14 | Friday | Flag Day | Public Holiday |
| June 14 | Friday | Army Birthday | Observance |
| June 14 | Friday | World Blood Donor Day | |
| June 15 | Saturday | World Elder Abuse Awareness Day | |
| June 16 | Sunday | Bunker Hill Day | Local observance |
| June 16 | Sunday | International Day of Family Remittances | |
| June 16 | Sunday | Father's Day | Observance |
| June 17 | Monday | World Day to Combat Desertification and Drought | |
| June 17 | Monday | Eid al-Adha | Public Holiday |
| June 19 | Wednesday | Emancipation Day | Public Holiday |
| June 19 | Wednesday | Juneteenth | Local observance |
| June 19 | Wednesday | International Day for the Elimination of Sexual Violence in Conflict | |
| June 20 | Thursday | World Refugee Day | |
| June 20 | Thursday | American Eagle Day | Observance |
| June 20 | Thursday | June Solstice | Season |
| June 20 | Thursday | West Virginia Day | State holiday |
| June 21 | Friday | International Day of Yoga | |
| June 23 | Sunday | Public Service Day | |
| June 23 | Sunday | International Widows' Day | |
| June 25 | Tuesday | Day of the Seafarer | |
| June 26 | Wednesday | International Day Against Drug Abuse and Illicit Trafficking | |
| June 26 | Wednesday | International Day in Support of Victims of Torture | |
| June 30 | Sunday | International Asteroid Day | |
| July 4 | Thursday | Independence Day | Public Holiday |
| July 6 | Saturday | International Day of Cooperatives | |
| July 8 | Monday | Muharram | Public Holiday |
| July 11 | Thursday | World Population Day | |
| July 14 | Sunday | Bastille Day | Public Holiday |
| July 15 | Monday | World Youth Skills Day | |
| July 18 | Thursday | Nelson Mandela Day | Observance |
| July 24 | Wednesday | Pioneer Day | State holiday |
| July 27 | Saturday | National Korean War Veterans Armistice Day | Observance |
| July 28 | Sunday | Parents' Day | Observance |
| July 28 | Sunday | World Hepatitis Day | |
| July 30 | Tuesday | International Day of Friendship | |
| July 30 | Tuesday | World Day against Trafficking in Persons | |
| August 1 | Thursday | Colorado Day | Local observance |
| August 4 | Sunday | Coast Guard Birthday | Observance |
| August 7 | Wednesday | Purple Heart Day | Observance |
| August 9 | Friday | International Day of the World's Indigenous People | |
| August 12 | Monday | Victory Day | Public Holiday |
| August 12 | Monday | International Youth Day | |
| August 13 | Tuesday | Tisha B'Av | Jewish holiday |
| August 15 | Thursday | Assumption of Mary | Common Local holiday |
| August 16 | Friday | Statehood Day in Hawaii | State holiday |
| August 16 | Friday | Bennington Battle Day | State holiday |
| August 19 | Monday | World Humanitarian Day | |
| August 19 | Monday | National Aviation Day | Observance |
| August 21 | Wednesday | Senior Citizens Day | Public Holiday |
| August 23 | Friday | International Day for the Remembrance of the Slave Trade and its Abolition | |
| August 26 | Monday | Women's Equality Day | Observance |
| August 27 | Tuesday | Lyndon Baines Johnson Day | State holiday |
| August 29 | Thursday | International Day against Nuclear Tests | |
| August 30 | Friday | International Day of the Victims of Enforced Disappearances | |
| August 31 | Saturday | International Overdose Awareness Day | |
| September 2 | Monday | Labor Day | Public Holiday |
| September 4 | Wednesday | World Sexual Health Day | |
| September 5 | Thursday | International Day of Charity | |
| September 7 | Saturday | Carl Garner Federal Lands Cleanup Day | Observance |
| September 8 | Sunday | International Literacy Day | |
| September 8 | Sunday | National Grandparents Day | Observance |
| September 9 | Monday | California Admission Day | Local observance |
| September 10 | Tuesday | World Suicide Prevention Day | |
| September 11 | Wednesday | Patriot Day | Observance |
| September 12 | Thursday | International Day for South-South Cooperation | |
| September 12 | Thursday | International Programmers' Day | Worldwide observance |
| September 13 | Friday | Friday the 13th | Worldwide observance |
| September 15 | Sunday | International Day of Democracy | |
| September 16 | Monday | The Prophet's Birthday | Public Holiday |
| September 16 | Monday | International Day for the Preservation of the Ozone Layer | |
| September 17 | Tuesday | Constitution Day and Citizenship Day | Observance |
| September 18 | Wednesday | Air Force Birthday | Observance |
| September 20 | Friday | National POW/MIA Recognition Day | Observance |
| September 21 | Saturday | International Day of Peace | |
| September 22 | Sunday | Emancipation Day | Public Holiday |
| September 22 | Sunday | September equinox | Season |
| September 23 | Monday | International Celebrate Bisexuality Day | |
| September 26 | Thursday | International Day for the Total Elimination of Nuclear Weapons | |
| September 26 | Thursday | World Maritime Day | |
| September 27 | Friday | World Tourism Day | Observance |
| September 27 | Friday | Native American Day | Local observance |
| September 28 | Saturday | World Rabies Day | |
| September 29 | Sunday | Gold Star Mother's Day | Observance |
| September 29 | Sunday | World Heart Day | |
| October 1 | Tuesday | World Vegetarian Day | |
| October 1 | Tuesday | International Day of Older Persons | |
| October 2 | Wednesday | World Cerebral Palsy Day | |
| October 2 | Wednesday | International Day of Non-Violence | |
| October 3 | Thursday | Rosh Hashana | Jewish holiday |
| October 4 | Friday | Feast of St Francis of Assisi | Christian holiday |
| October 5 | Saturday | World Teachers' Day | |
| October 7 | Monday | Child Health Day | Observance |
| October 7 | Monday | World Habitat Day | |
| October 9 | Wednesday | World Post Day | |
| October 9 | Wednesday | Leif Erikson Day | Observance |
| October 9 | Wednesday | International Day for Natural Disaster Reduction | |
| October 10 | Thursday | World Sight Day | |
| October 10 | Thursday | World Mental Health Day | |
| October 11 | Friday | International Day of the Girl Child | |
| October 12 | Saturday | Yom Kippur | Jewish holiday |
| Date | Weekday | Public holiday name | Public holiday type |
|---|---|---|---|
| January 1 | Wednesday | New Year's Day | National holiday |
| January 2 | Thursday | Last Day of Chanukah | Jewish holiday |
| January 4 | Saturday | World Braille Day | Worldwide observance |
| January 6 | Monday | Epiphany | Common Local holiday |
| January 7 | Tuesday | Orthodox Christmas Day | Orthodox holiday |
| January 7 | Tuesday | International Programmers' Day | Worldwide observance |
| January 13 | Monday | Stephen Foster Memorial Day | Observance |
| January 14 | Tuesday | Orthodox New Year | Orthodox holiday |
| January 17 | Friday | Lee-Jackson Day | State holiday |
| January 19 | Sunday | Robert E. Lee's Birthday | State holiday |
| January 19 | Sunday | Confederate Heroes' Day | State holiday |
| January 19 | Sunday | World Religion Day | Worldwide observance |
| January 20 | Monday | Idaho Human Rights Day | State holiday |
| January 20 | Monday | Martin Luther King Jr. Day | Public Holiday |
| January 20 | Monday | Inauguration Day | State holiday |
| January 20 | Monday | Robert E. Lee's Birthday | State holiday |
| January 20 | Monday | Civil Rights Day | State holiday |
| January 26 | Sunday | World Leprosy Day | Worldwide observance |
| January 26 | Sunday | International Customs Day | Worldwide observance |
| January 27 | Monday | International Day of Commemoration in Memory of the Victims of the Holocaust | United Nations observance |
| January 27 | Monday | Isra and Mi'raj | Muslim holiday |
| January 29 | Wednesday | Kansas Day | Observance |
| January 29 | Wednesday | Chinese New Year | Observance |
| February 1 | Saturday | National Freedom Day | Observance |
| February 2 | Sunday | Super Bowl | Sporting event |
| February 2 | Sunday | World Wetlands Day | Worldwide observance |
| February 2 | Sunday | Groundhog Day | Observance |
| February 4 | Tuesday | World Cancer Day | United Nations observance |
| February 4 | Tuesday | Rosa Parks Day | Local observance |
| February 6 | Thursday | International Day of Zero Tolerance for Female Genital Mutilation | |
| February 7 | Friday | National Wear Red Day | Observance |
| February 11 | Tuesday | World Day of the Sick | Worldwide observance |
| February 11 | Tuesday | International Day of Women and Girls in Science | |
| February 12 | Wednesday | Lincoln's Birthday | State holiday |
| February 13 | Thursday | Tu Bishvat/Tu B'Shevat | Jewish holiday |
| February 13 | Thursday | World Radio Day | United Nations observance |
| February 14 | Friday | Valentine's Day | Observance |
| February 14 | Friday | Statehood Day | Public Holiday |
| February 15 | Saturday | Susan B. Anthony's Birthday | Local observance |
| February 16 | Sunday | Elizabeth Peratrovich Day | Local observance |
| February 17 | Monday | Daisy Gatson Bates Day | State holiday |
| February 17 | Monday | Presidents' Day | Bank or Public Sector Holiday |
| February 20 | Thursday | World Day of Social Justice | United Nations observance |
| February 21 | Friday | International Mother Language Day | United Nations observance |
| February 28 | Friday | Linus Pauling Day | Local observance |
| March 1 | Saturday | Zero Discrimination Day | United Nations observance |
| March 1 | Saturday | Ramadan starts | Public Holiday |
| March 1 | Saturday | Self-Injury Awareness Day | Worldwide observance |
| March 1 | Saturday | St. David's Day | Observance |
| March 2 | Sunday | Texas Independence Day | State holiday |
| March 3 | Monday | Casimir Pulaski Day | State holiday |
| March 3 | Monday | Read Across America Day | Observance |
| March 3 | Monday | World Wildlife Day | United Nations observance |
| March 4 | Tuesday | Shrove Tuesday/Mardi Gras | State holiday |
| March 4 | Tuesday | Town Meeting Day | State holiday |
| March 5 | Wednesday | Ash Wednesday | Christian holiday |
| March 7 | Friday | Employee Appreciation Day | Observance |
| March 8 | Saturday | International Women's Day | United Nations observance |
| March 9 | Sunday | Daylight Saving Time starts | Daylight Saving Time |
| March 13 | Thursday | World Kidney Day | Worldwide observance |
| March 14 | Friday | Purim | Jewish holiday |
| March 17 | Monday | St. Patrick's Day | Local holiday |
| March 17 | Monday | Evacuation Day | State holiday |
| March 20 | Thursday | International Day of Happiness | United Nations observance |
| March 20 | Thursday | March equinox | Season |
| March 21 | Friday | International Day of Nowruz | United Nations observance |
| March 21 | Friday | World Down Syndrome Day | United Nations observance |
| March 21 | Friday | International Day for the Elimination of Racial Discrimination | United Nations observance |
| March 21 | Friday | International Day of Forests | United Nations observance |
| March 21 | Friday | World Poetry Day | United Nations observance |
| March 22 | Saturday | World Water Day | United Nations observance |
| March 23 | Sunday | World Meteorological Day | United Nations observance |
| March 24 | Monday | World Tuberculosis Day | United Nations observance |
| March 24 | Monday | International Day for the Right to the Truth concerning Gross Human Rights Violations and for the Dignity of Victims | United Nations observance |
| March 25 | Tuesday | International Day of Solidarity with Detained and Missing Staff Members | United Nations observance |
| March 25 | Tuesday | Maryland Day | Local observance |
| March 25 | Tuesday | International Day of Remembrance of Slavery Victims and the Transatlantic Slave Trade | United Nations observance |
| March 26 | Wednesday | Lailat al-Qadr | Public Holiday |
| March 26 | Wednesday | Prince Jonah Kuhio Kalanianaole Day | State holiday |
| March 29 | Saturday | Earth Hour | Worldwide observance |
| March 29 | Saturday | National Vietnam War Veterans Day | Observance |
| March 31 | Monday | César Chávez Day | State holiday |
| March 31 | Monday | Eid al-Fitr | Public Holiday |
| March 31 | Monday | Seward's Day | State holiday |
| April 1 | Tuesday | April Fool's Day | Worldwide observance |
| April 2 | Wednesday | World Autism Awareness Day | United Nations observance |
| April 2 | Wednesday | Pascua Florida Day | Local observance |
| April 4 | Friday | United Nations' Mine Awareness Day | United Nations observance |
| April 6 | Sunday | International Day of Sport for Development and Peace | United Nations observance |
| April 6 | Sunday | National Tartan Day | Observance |
| April 7 | Monday | United Nations' World Health Day | United Nations observance |
| April 7 | Monday | Day of Remembrance of the Victims of the Rwanda Genocide | United Nations observance |
| April 8 | Tuesday | National Library Workers' Day | Observance |
| April 12 | Saturday | International Day of Human Space Flight | United Nations observance |
| April 13 | Sunday | Passover (first day) | Jewish holiday |
| April 13 | Sunday | Thomas Jefferson's Birthday | Observance |
| April 13 | Sunday | Palm Sunday | Observance |
| April 15 | Tuesday | Tax Day | Observance |
| April 15 | Tuesday | Father Damien Day | Local observance |
| April 16 | Wednesday | Emancipation Day | Public Holiday |
| April 17 | Thursday | Maundy Thursday | Silent Day |
| April 18 | Friday | Orthodox Good Friday | Orthodox holiday |
| April 18 | Friday | Good Friday | Silent Day |
| April 18 | Friday | International Day for Monuments and Sites | Worldwide observance |
| April 19 | Saturday | Holy Saturday | Christian holiday |
| April 19 | Saturday | Orthodox Holy Saturday | Orthodox holiday |
| April 20 | Sunday | Chinese Language Day | |
| April 20 | Sunday | Last day of Passover | Jewish holiday |
| April 20 | Sunday | Orthodox Easter | Orthodox holiday |
| April 20 | Sunday | Easter Sunday | Observance |
| April 21 | Monday | Orthodox Easter Monday | Orthodox holiday |
| April 21 | Monday | Easter Monday | National holiday |
| April 21 | Monday | Boston Marathon | Sporting event |
| April 21 | Monday | San Jacinto Day | State holiday |
| April 21 | Monday | Patriot's Day | State holiday |
| April 22 | Tuesday | Oklahoma Day | Local observance |
| April 22 | Tuesday | Earth Day | |
| April 23 | Wednesday | English Language Day | |
| April 23 | Wednesday | Administrative Professionals Day | Observance |
| April 23 | Wednesday | Yom HaShoah | Jewish holiday |
| April 23 | Wednesday | World Book and Copyright Day | |
| April 24 | Thursday | Take our Daughters and Sons to Work Day | Observance |
| April 25 | Friday | World Malaria Day | |
| April 25 | Friday | Arbor Day | Observance |
| April 26 | Saturday | World Intellectual Property Day | |
| April 26 | Saturday | Confederate Heroes' Day | State holiday |
| April 26 | Saturday | International Chernobyl Disaster Remembrance Day | |
| April 28 | Monday | World Day for Safety and Health at Work | |
| April 28 | Monday | State Holiday | State holiday |
| April 28 | Monday | Confederate Memorial Day | State holiday |
| April 29 | Tuesday | Day of Remembrance for all Victims of Chemical Warfare | |
| April 30 | Wednesday | International Jazz Day | |
| May 1 | Thursday | Law Day | Observance |
| May 1 | Thursday | National Day of Prayer | Observance |
| May 1 | Thursday | Yom Ha'atzmaut | Jewish holiday |
| May 1 | Thursday | Loyalty Day | Observance |
| May 1 | Thursday | Lei Day | Local observance |
| May 2 | Friday | Kentucky Oaks | Sporting event |
| May 2 | Friday | World Tuna Day | |
| May 3 | Saturday | World Press Freedom Day | |
| May 3 | Saturday | National Explosive Ordnance Disposal (EOD) Day | Observance |
| May 3 | Saturday | Kentucky Derby | Sporting event |
| May 4 | Sunday | Kent State Shootings Remembrance | Local observance |
| May 4 | Sunday | Rhode Island Independence Day | Local observance |
| May 5 | Monday | Cinco de Mayo | Observance |
| May 6 | Tuesday | National Nurses Day | Observance |
| May 8 | Thursday | Time of Remembrance and Reconciliation for Those Who Lost Their Lives during the Second World War | |
| May 8 | Thursday | World Ovarian Cancer Day | |
| May 8 | Thursday | Truman Day | State holiday |
| May 9 | Friday | Military Spouse Appreciation Day | Observance |
| May 9 | Friday | Confederate Memorial Day observed | State holiday |
| May 10 | Saturday | Confederate Memorial Day | State holiday |
| May 10 | Saturday | World Migratory Bird Day | |
| May 11 | Sunday | Mother's Day | Observance |
| May 12 | Monday | International Nurses Day | |
| May 15 | Thursday | Peace Officers Memorial Day | Observance |
| May 15 | Thursday | International Day of Families | |
| May 16 | Friday | Lag BaOmer | Jewish holiday |
| May 16 | Friday | National Defense Transportation Day | Observance |
| May 17 | Saturday | World Information Society Day | |
| May 17 | Saturday | Preakness Stakes | Sporting event |
| May 17 | Saturday | Armed Forces Day | Observance |
| May 20 | Tuesday | World Autoimmune / Autoinflammatory Arthritis Day | |
| May 21 | Wednesday | World Day for Cultural Diversity for Dialogue and Development | |
| May 21 | Wednesday | Emergency Medical Services for Children Day | Observance |
| May 22 | Thursday | National Maritime Day | Observance |
| May 22 | Thursday | Harvey Milk Day | Local observance |
| May 22 | Thursday | International Day for Biological Diversity | |
| May 23 | Friday | International Day to End Obstetric Fistula | |
| May 25 | Sunday | African Liberation Day | |
| May 25 | Sunday | National Missing Children's Day | Observance |
| May 26 | Monday | Jefferson Davis' Birthday | Local observance |
| May 26 | Monday | Memorial Day | Local observance |
| May 29 | Thursday | International Day of United Nations Peacekeepers | |
| May 29 | Thursday | Ascension Day | National holiday |
| May 31 | Saturday | World No Tobacco Day | |
| June 1 | Sunday | Statehood Day | Public Holiday |
| June 1 | Sunday | Global Day of Parents | |
| June 2 | Monday | Shavuot | Jewish holiday |
| June 2 | Monday | Jefferson Davis' Birthday | Local observance |
| June 3 | Tuesday | Jefferson Davis' Birthday | Local observance |
| June 4 | Wednesday | International Day of Innocent Children Victims of Aggression | |
| June 5 | Thursday | World Environment Day | Observance |
| June 6 | Friday | D-Day | Observance |
| June 7 | Saturday | Belmont Stakes | Sporting event |
| June 7 | Saturday | Eid al-Adha | Public Holiday |
| June 8 | Sunday | World Oceans Day | |
| June 8 | Sunday | Pentecost | Christian holiday |
| June 9 | Monday | Whit Monday | National holiday |
| June 11 | Wednesday | Kamehameha Day | State holiday |
| June 12 | Thursday | World Day Against Child Labour | |
| June 13 | Friday | International Albinism Awareness Day | |
| June 13 | Friday | Friday the 13th | Worldwide observance |
| June 14 | Saturday | Flag Day | Public Holiday |
| June 14 | Saturday | Army Birthday | Observance |
| June 14 | Saturday | World Blood Donor Day | |
| June 15 | Sunday | Trinity Sunday | Christian holiday |
| June 15 | Sunday | World Elder Abuse Awareness Day | |
| June 15 | Sunday | Bunker Hill Day | Local observance |
| June 15 | Sunday | Father's Day | Observance |
| June 16 | Monday | International Day of Family Remittances | |
| June 17 | Tuesday | World Day to Combat Desertification and Drought | |
| June 19 | Thursday | Emancipation Day | Public Holiday |
| June 19 | Thursday | Corpus Christi | Common Local holiday |
| June 19 | Thursday | Juneteenth | Local observance |
| June 19 | Thursday | International Day for the Elimination of Sexual Violence in Conflict | |
| June 20 | Friday | West Virginia Day | State holiday |
| June 20 | Friday | World Refugee Day | |
| June 20 | Friday | American Eagle Day | Observance |
| June 20 | Friday | June Solstice | Season |
| June 21 | Saturday | International Day of Yoga | |
| June 23 | Monday | Public Service Day | |
| June 23 | Monday | International Widows' Day | |
| June 25 | Wednesday | Day of the Seafarer | |
| June 26 | Thursday | International Day Against Drug Abuse and Illicit Trafficking | |
| June 26 | Thursday | International Day in Support of Victims of Torture | |
| June 27 | Friday | Muharram | Public Holiday |
| June 30 | Monday | International Asteroid Day | |
| July 4 | Friday | Independence Day | Public Holiday |
| July 5 | Saturday | International Day of Cooperatives | |
| July 11 | Friday | World Population Day | |
| July 14 | Monday | Bastille Day | Public Holiday |
| July 15 | Tuesday | World Youth Skills Day | |
| July 18 | Friday | Nelson Mandela Day | Observance |
| July 24 | Thursday | Pioneer Day | State holiday |
| July 27 | Sunday | Parents' Day | Observance |
| July 27 | Sunday | National Korean War Veterans Armistice Day | Observance |
| July 28 | Monday | World Hepatitis Day | |
| July 30 | Wednesday | International Day of Friendship | |
| July 30 | Wednesday | World Day against Trafficking in Persons | |
| August 1 | Friday | Colorado Day | Local observance |
| August 3 | Sunday | Tisha B'Av | Jewish holiday |
| August 4 | Monday | Coast Guard Birthday | Observance |
| August 7 | Thursday | Purple Heart Day | Observance |
| August 9 | Saturday | International Day of the World's Indigenous People | |
| August 11 | Monday | Victory Day | Public Holiday |
| August 12 | Tuesday | International Youth Day | |
| August 15 | Friday | Bennington Battle Day observed | State holiday |
| August 15 | Friday | Assumption of Mary | Common Local holiday |
| August 15 | Friday | Statehood Day in Hawaii | State holiday |
| August 16 | Saturday | Bennington Battle Day | State holiday |
| August 19 | Tuesday | World Humanitarian Day | |
| August 19 | Tuesday | National Aviation Day | Observance |
| August 21 | Thursday | Senior Citizens Day | Public Holiday |
| August 23 | Saturday | International Day for the Remembrance of the Slave Trade and its Abolition | |
| August 26 | Tuesday | Women's Equality Day | Observance |
| August 27 | Wednesday | Lyndon Baines Johnson Day | State holiday |
| August 29 | Friday | International Day against Nuclear Tests | |
| August 30 | Saturday | International Day of the Victims of Enforced Disappearances | |
| August 31 | Sunday | International Overdose Awareness Day | |
| September 1 | Monday | Labor Day | Public Holiday |
| September 4 | Thursday | World Sexual Health Day | |
| September 5 | Friday | The Prophet's Birthday | Public Holiday |
| September 5 | Friday | International Day of Charity | |
| September 6 | Saturday | Carl Garner Federal Lands Cleanup Day | Observance |
| September 7 | Sunday | National Grandparents Day | Observance |
| September 8 | Monday | International Literacy Day | |
| September 9 | Tuesday | California Admission Day | Local observance |
| September 10 | Wednesday | World Suicide Prevention Day | |
| September 11 | Thursday | Patriot Day | Observance |
| September 12 | Friday | International Day for South-South Cooperation | |
| September 13 | Saturday | International Programmers' Day | Worldwide observance |
| September 15 | Monday | International Day of Democracy | |
| September 16 | Tuesday | International Day for the Preservation of the Ozone Layer | |
| September 17 | Wednesday | Constitution Day and Citizenship Day | Observance |
| September 18 | Thursday | Air Force Birthday | Observance |
| September 19 | Friday | National POW/MIA Recognition Day | Observance |
| September 21 | Sunday | International Day of Peace | |
| September 22 | Monday | Emancipation Day | Public Holiday |
| September 22 | Monday | September equinox | Season |
| September 23 | Tuesday | Rosh Hashana | Jewish holiday |
| September 23 | Tuesday | International Celebrate Bisexuality Day | |
| September 25 | Thursday | World Maritime Day | |
| September 26 | Friday | International Day for the Total Elimination of Nuclear Weapons | |
| September 26 | Friday | Native American Day | Local observance |
| September 27 | Saturday | World Tourism Day | Observance |
| September 28 | Sunday | Gold Star Mother's Day | Observance |
| September 28 | Sunday | World Rabies Day | |
| September 29 | Monday | World Heart Day | |
| October 1 | Wednesday | World Vegetarian Day | |
| October 1 | Wednesday | World Cerebral Palsy Day | |
| October 1 | Wednesday | International Day of Older Persons | |
| October 2 | Thursday | Yom Kippur | Jewish holiday |
| October 2 | Thursday | International Day of Non-Violence | |
| October 4 | Saturday | Feast of St Francis of Assisi | Christian holiday |
| October 5 | Sunday | World Teachers' Day | |
| October 6 | Monday | Child Health Day | Observance |
| October 6 | Monday | World Habitat Day | |
| October 7 | Tuesday | First day of Sukkot | Jewish holiday |
| October 8 | Wednesday | International Day for Natural Disaster Reduction | |
| October 9 | Thursday | World Post Day | |
| October 9 | Thursday | World Sight Day | |
| October 9 | Thursday | Leif Erikson Day | Observance |
| Date | Weekday | Public holiday name | Public holiday type |
|---|---|---|---|
| January 1 | Thursday | New Year's Day | National holiday |
| January 4 | Sunday | World Braille Day | Worldwide observance |
| January 6 | Tuesday | Epiphany | Common Local holiday |
| January 7 | Wednesday | International Programmers' Day | Worldwide observance |
| January 7 | Wednesday | Orthodox Christmas Day | Orthodox holiday |
| January 13 | Tuesday | Stephen Foster Memorial Day | Observance |
| January 14 | Wednesday | Orthodox New Year | Orthodox holiday |
| January 16 | Friday | Isra and Mi'raj | Muslim holiday |
| January 16 | Friday | Lee-Jackson Day | State holiday |
| January 18 | Sunday | World Religion Day | Worldwide observance |
| January 19 | Monday | Idaho Human Rights Day | State holiday |
| January 19 | Monday | Martin Luther King Jr. Day | Public Holiday |
| January 19 | Monday | Robert E. Lee's Birthday | State holiday |
| January 19 | Monday | Civil Rights Day | State holiday |
| January 19 | Monday | Confederate Heroes' Day | State holiday |
| January 25 | Sunday | World Leprosy Day | Worldwide observance |
| January 26 | Monday | International Customs Day | Worldwide observance |
| January 27 | Tuesday | International Day of Commemoration in Memory of the Victims of the Holocaust | United Nations observance |
| January 29 | Thursday | Kansas Day | Observance |
| February 1 | Sunday | Super Bowl | Sporting event |
| February 1 | Sunday | National Freedom Day | Observance |
| February 2 | Monday | World Wetlands Day | Worldwide observance |
| February 2 | Monday | Groundhog Day | Observance |
| February 2 | Monday | Tu Bishvat/Tu B'Shevat | Jewish holiday |
| February 4 | Wednesday | World Cancer Day | United Nations observance |
| February 4 | Wednesday | Rosa Parks Day | Local observance |
| February 6 | Friday | International Day of Zero Tolerance for Female Genital Mutilation | |
| February 6 | Friday | National Wear Red Day | Observance |
| February 11 | Wednesday | International Day of Women and Girls in Science | |
| February 11 | Wednesday | World Day of the Sick | Worldwide observance |
| February 12 | Thursday | Lincoln's Birthday | State holiday |
| February 13 | Friday | Friday the 13th | Worldwide observance |
| February 13 | Friday | World Radio Day | United Nations observance |
| February 14 | Saturday | Valentine's Day | Observance |
| February 14 | Saturday | Statehood Day | Public Holiday |
| February 15 | Sunday | Susan B. Anthony's Birthday | Local observance |
| February 16 | Monday | Daisy Gatson Bates Day | State holiday |
| February 16 | Monday | Presidents' Day | Bank or Public Sector Holiday |
| February 16 | Monday | Elizabeth Peratrovich Day | Local observance |
| February 17 | Tuesday | Shrove Tuesday/Mardi Gras | State holiday |
| February 17 | Tuesday | Chinese New Year | Observance |
| February 18 | Wednesday | Ramadan starts | Public Holiday |
| February 18 | Wednesday | Ash Wednesday | Christian holiday |
| February 20 | Friday | World Day of Social Justice | United Nations observance |
| February 21 | Saturday | International Mother Language Day | United Nations observance |
| February 28 | Saturday | Linus Pauling Day | Local observance |
| March 1 | Sunday | Zero Discrimination Day | United Nations observance |
| March 1 | Sunday | Self-Injury Awareness Day | Worldwide observance |
| March 1 | Sunday | St. David's Day | Observance |
| March 2 | Monday | Texas Independence Day | State holiday |
| March 2 | Monday | Casimir Pulaski Day | State holiday |
| March 2 | Monday | Read Across America Day | Observance |
| March 3 | Tuesday | Purim | Jewish holiday |
| March 3 | Tuesday | World Wildlife Day | United Nations observance |
| March 3 | Tuesday | Town Meeting Day | State holiday |
| March 6 | Friday | Employee Appreciation Day | Observance |
| March 8 | Sunday | International Women's Day | United Nations observance |
| March 8 | Sunday | Daylight Saving Time starts | Daylight Saving Time |
| March 12 | Thursday | World Kidney Day | Worldwide observance |
| March 13 | Friday | Friday the 13th | Worldwide observance |
| March 15 | Sunday | Lailat al-Qadr | Public Holiday |
| March 17 | Tuesday | St. Patrick's Day | Local holiday |
| March 17 | Tuesday | Evacuation Day | State holiday |
| March 20 | Friday | International Day of Happiness | United Nations observance |
| March 20 | Friday | March equinox | Season |
| March 20 | Friday | Eid al-Fitr | Public Holiday |
| March 21 | Saturday | International Day of Nowruz | United Nations observance |
| March 21 | Saturday | World Down Syndrome Day | United Nations observance |
| March 21 | Saturday | International Day for the Elimination of Racial Discrimination | United Nations observance |
| March 21 | Saturday | International Day of Forests | United Nations observance |
| March 21 | Saturday | World Poetry Day | United Nations observance |
| March 22 | Sunday | World Water Day | United Nations observance |
| March 23 | Monday | World Meteorological Day | United Nations observance |
| March 24 | Tuesday | World Tuberculosis Day | United Nations observance |
| March 24 | Tuesday | International Day for the Right to the Truth concerning Gross Human Rights Violations and for the Dignity of Victims | United Nations observance |
| March 25 | Wednesday | International Day of Solidarity with Detained and Missing Staff Members | United Nations observance |
| March 25 | Wednesday | Maryland Day | Local observance |
| March 25 | Wednesday | International Day of Remembrance of Slavery Victims and the Transatlantic Slave Trade | United Nations observance |
| March 26 | Thursday | Prince Jonah Kuhio Kalanianaole Day | State holiday |
| March 28 | Saturday | Earth Hour | Worldwide observance |
| March 29 | Sunday | National Vietnam War Veterans Day | Observance |
| March 29 | Sunday | Palm Sunday | Observance |
| March 30 | Monday | Seward's Day | State holiday |
| March 31 | Tuesday | César Chávez Day | State holiday |
| April 1 | Wednesday | April Fool's Day | Worldwide observance |
| April 2 | Thursday | Passover (first day) | Jewish holiday |
| April 2 | Thursday | World Autism Awareness Day | United Nations observance |
| April 2 | Thursday | Pascua Florida Day | Local observance |
| April 2 | Thursday | Maundy Thursday | Silent Day |
| April 3 | Friday | Good Friday | Silent Day |
| April 4 | Saturday | United Nations' Mine Awareness Day | United Nations observance |
| April 4 | Saturday | Holy Saturday | Christian holiday |
| April 5 | Sunday | Easter Sunday | Observance |
| April 6 | Monday | International Day of Sport for Development and Peace | United Nations observance |
| April 6 | Monday | Easter Monday | National holiday |
| April 6 | Monday | National Tartan Day | Observance |
| April 7 | Tuesday | United Nations' World Health Day | United Nations observance |
| April 7 | Tuesday | Day of Remembrance of the Victims of the Rwanda Genocide | United Nations observance |
| April 9 | Thursday | Last day of Passover | Jewish holiday |
| April 10 | Friday | Orthodox Good Friday | Orthodox holiday |
| April 11 | Saturday | Orthodox Holy Saturday | Orthodox holiday |
| April 12 | Sunday | International Day of Human Space Flight | United Nations observance |
| April 12 | Sunday | Orthodox Easter | Orthodox holiday |
| April 13 | Monday | Orthodox Easter Monday | Orthodox holiday |
| April 13 | Monday | Thomas Jefferson's Birthday | Observance |
| April 14 | Tuesday | National Library Workers' Day | Observance |
| April 14 | Tuesday | Yom HaShoah | Jewish holiday |
| April 15 | Wednesday | Tax Day | Observance |
| April 15 | Wednesday | Father Damien Day | Local observance |
| April 16 | Thursday | Emancipation Day | Public Holiday |
| April 18 | Saturday | International Day for Monuments and Sites | Worldwide observance |
| April 20 | Monday | Patriot's Day | State holiday |
| April 20 | Monday | Chinese Language Day | |
| April 20 | Monday | Boston Marathon | Sporting event |
| April 21 | Tuesday | San Jacinto Day | State holiday |
| April 22 | Wednesday | Administrative Professionals Day | Observance |
| April 22 | Wednesday | Yom Ha'atzmaut | Jewish holiday |
| April 22 | Wednesday | Oklahoma Day | Local observance |
| April 22 | Wednesday | Earth Day | |
| April 23 | Thursday | English Language Day | |
| April 23 | Thursday | Take our Daughters and Sons to Work Day | Observance |
| April 23 | Thursday | World Book and Copyright Day | |
| April 24 | Friday | Arbor Day | Observance |
| April 25 | Saturday | World Malaria Day | |
| April 26 | Sunday | World Intellectual Property Day | |
| April 26 | Sunday | Confederate Heroes' Day | State holiday |
| April 26 | Sunday | International Chernobyl Disaster Remembrance Day | |
| April 27 | Monday | Confederate Memorial Day | State holiday |
| April 27 | Monday | Confederate Heroes' Day observed | Local observance |
| April 27 | Monday | State Holiday | State holiday |
| April 28 | Tuesday | World Day for Safety and Health at Work | |
| April 29 | Wednesday | Day of Remembrance for all Victims of Chemical Warfare | |
| April 30 | Thursday | International Jazz Day | |
| May 1 | Friday | Law Day | Observance |
| May 1 | Friday | Loyalty Day | Observance |
| May 1 | Friday | Kentucky Oaks | Sporting event |
| May 1 | Friday | Lei Day | Local observance |
| May 2 | Saturday | National Explosive Ordnance Disposal (EOD) Day | Observance |
| May 2 | Saturday | World Tuna Day | |
| May 2 | Saturday | Kentucky Derby | Sporting event |
| May 3 | Sunday | World Press Freedom Day | |
| May 4 | Monday | Kent State Shootings Remembrance | Local observance |
| May 4 | Monday | Rhode Island Independence Day | Local observance |
| May 5 | Tuesday | Lag BaOmer | Jewish holiday |
| May 5 | Tuesday | Cinco de Mayo | Observance |
| May 6 | Wednesday | National Nurses Day | Observance |
| May 7 | Thursday | National Day of Prayer | Observance |
| May 8 | Friday | Time of Remembrance and Reconciliation for Those Who Lost Their Lives during the Second World War | |
| May 8 | Friday | World Ovarian Cancer Day | |
| May 8 | Friday | Military Spouse Appreciation Day | Observance |
| May 8 | Friday | Truman Day | State holiday |
| May 9 | Saturday | World Migratory Bird Day | |
| May 10 | Sunday | Confederate Memorial Day | State holiday |
| May 10 | Sunday | Mother's Day | Observance |
| May 11 | Monday | Confederate Memorial Day observed | State holiday |
| May 12 | Tuesday | International Nurses Day | |
| May 12 | Tuesday | Primary Election Day | State holiday |
| May 14 | Thursday | Ascension Day | National holiday |
| May 15 | Friday | Peace Officers Memorial Day | Observance |
| May 15 | Friday | International Day of Families | |
| May 15 | Friday | National Defense Transportation Day | Observance |
| May 16 | Saturday | Preakness Stakes | Sporting event |
| May 16 | Saturday | Armed Forces Day | Observance |
| May 17 | Sunday | World Information Society Day | |
| May 20 | Wednesday | Emergency Medical Services for Children Day | Observance |
| May 20 | Wednesday | World Autoimmune / Autoinflammatory Arthritis Day | |
| May 21 | Thursday | World Day for Cultural Diversity for Dialogue and Development | |
| May 22 | Friday | National Maritime Day | Observance |
| May 22 | Friday | Harvey Milk Day | Local observance |
| May 22 | Friday | Shavuot | Jewish holiday |
| May 22 | Friday | International Day for Biological Diversity | |
| May 23 | Saturday | International Day to End Obstetric Fistula | |
| May 24 | Sunday | Pentecost | Christian holiday |
| May 25 | Monday | Jefferson Davis' Birthday | Local observance |
| May 25 | Monday | African Liberation Day | |
| May 25 | Monday | Whit Monday | National holiday |
| May 25 | Monday | National Missing Children's Day | Observance |
| May 25 | Monday | Memorial Day | Local observance |
| May 27 | Wednesday | Eid al-Adha | Public Holiday |
| May 29 | Friday | International Day of United Nations Peacekeepers | |
| May 31 | Sunday | Trinity Sunday | Christian holiday |
| May 31 | Sunday | World No Tobacco Day | |
| June 1 | Monday | Jefferson Davis' Birthday | Local observance |
| June 1 | Monday | Global Day of Parents | |
| June 1 | Monday | Statehood Day | Public Holiday |
| June 3 | Wednesday | Jefferson Davis' Birthday | Local observance |
| June 4 | Thursday | Corpus Christi | Common Local holiday |
| June 4 | Thursday | International Day of Innocent Children Victims of Aggression | |
| June 5 | Friday | World Environment Day | Observance |
| June 6 | Saturday | Belmont Stakes | Sporting event |
| June 6 | Saturday | D-Day | Observance |
| June 8 | Monday | World Oceans Day | |
| June 11 | Thursday | Kamehameha Day | State holiday |
| June 12 | Friday | World Day Against Child Labour | |
| June 13 | Saturday | International Albinism Awareness Day | |
| June 14 | Sunday | Bunker Hill Day | Local observance |
| June 14 | Sunday | Flag Day | Public Holiday |
| June 14 | Sunday | Army Birthday | Observance |
| June 14 | Sunday | World Blood Donor Day | |
| June 15 | Monday | World Elder Abuse Awareness Day | |
| June 16 | Tuesday | International Day of Family Remittances | |
| June 17 | Wednesday | World Day to Combat Desertification and Drought | |
| June 17 | Wednesday | Muharram | Public Holiday |
| June 19 | Friday | Emancipation Day | Public Holiday |
| June 19 | Friday | Juneteenth | Local observance |
| June 19 | Friday | International Day for the Elimination of Sexual Violence in Conflict | |
| June 20 | Saturday | West Virginia Day | State holiday |
| June 20 | Saturday | World Refugee Day | |
| June 20 | Saturday | American Eagle Day | Observance |
| June 21 | Sunday | International Day of Yoga | |
| June 21 | Sunday | Father's Day | Observance |
| June 21 | Sunday | June Solstice | Season |
| June 23 | Tuesday | Public Service Day | |
| June 23 | Tuesday | International Widows' Day | |
| June 25 | Thursday | Day of the Seafarer | |
| June 26 | Friday | International Day Against Drug Abuse and Illicit Trafficking | |
| June 26 | Friday | International Day in Support of Victims of Torture | |
| June 30 | Tuesday | International Asteroid Day | |
| July 3 | Friday | Independence Day observed | Public Holiday |
| July 4 | Saturday | International Day of Cooperatives | |
| July 4 | Saturday | Independence Day | Public Holiday |
| July 11 | Saturday | World Population Day | |
| July 14 | Tuesday | Bastille Day | Public Holiday |
| July 15 | Wednesday | World Youth Skills Day | |
| July 18 | Saturday | Nelson Mandela Day | Observance |
| July 23 | Thursday | Tisha B'Av | Jewish holiday |
| July 24 | Friday | Pioneer Day | State holiday |
| July 26 | Sunday | Parents' Day | Observance |
| July 27 | Monday | National Korean War Veterans Armistice Day | Observance |
| July 28 | Tuesday | World Hepatitis Day | |
| July 30 | Thursday | International Day of Friendship | |
| July 30 | Thursday | World Day against Trafficking in Persons | |
| August 1 | Saturday | Colorado Day | Local observance |
| August 4 | Tuesday | Coast Guard Birthday | Observance |
| August 7 | Friday | Purple Heart Day | Observance |
| August 9 | Sunday | International Day of the World's Indigenous People | |
| August 10 | Monday | Victory Day | Public Holiday |
| August 12 | Wednesday | International Youth Day | |
| August 15 | Saturday | Assumption of Mary | Common Local holiday |
| August 16 | Sunday | Bennington Battle Day | State holiday |
| August 17 | Monday | Bennington Battle Day observed | State holiday |
| August 19 | Wednesday | World Humanitarian Day | |
| August 19 | Wednesday | National Aviation Day | Observance |
| August 21 | Friday | Statehood Day in Hawaii | State holiday |
| August 21 | Friday | Senior Citizens Day | Public Holiday |
| August 23 | Sunday | International Day for the Remembrance of the Slave Trade and its Abolition | |
| August 26 | Wednesday | The Prophet's Birthday | Public Holiday |
| August 26 | Wednesday | Women's Equality Day | Observance |
| August 27 | Thursday | Lyndon Baines Johnson Day | State holiday |
| August 29 | Saturday | International Day against Nuclear Tests | |
| August 30 | Sunday | International Day of the Victims of Enforced Disappearances | |
| August 31 | Monday | International Overdose Awareness Day | |
| September 4 | Friday | World Sexual Health Day | |
| September 5 | Saturday | International Day of Charity | |
| September 7 | Monday | Labor Day | Public Holiday |
| September 8 | Tuesday | International Literacy Day | |
| September 9 | Wednesday | California Admission Day | Local observance |
| September 10 | Thursday | World Suicide Prevention Day | |
| September 11 | Friday | Patriot Day | Observance |
| September 12 | Saturday | Rosh Hashana | Jewish holiday |
| September 12 | Saturday | Carl Garner Federal Lands Cleanup Day | Observance |
| September 12 | Saturday | International Day for South-South Cooperation | |
| September 13 | Sunday | International Programmers' Day | Worldwide observance |
| September 13 | Sunday | National Grandparents Day | Observance |
| September 15 | Tuesday | International Day of Democracy | |
| September 16 | Wednesday | International Day for the Preservation of the Ozone Layer | |
| September 17 | Thursday | Constitution Day and Citizenship Day | Observance |
| September 18 | Friday | National POW/MIA Recognition Day | Observance |
| September 18 | Friday | Air Force Birthday | Observance |
| September 21 | Monday | International Day of Peace | |
| September 21 | Monday | Yom Kippur | Jewish holiday |
| September 22 | Tuesday | September equinox | Season |
| September 22 | Tuesday | Emancipation Day | Public Holiday |
| September 23 | Wednesday | International Celebrate Bisexuality Day | |
| September 24 | Thursday | World Maritime Day | |
| September 25 | Friday | Native American Day | Local observance |
| September 26 | Saturday | First day of Sukkot | Jewish holiday |
| September 26 | Saturday | International Day for the Total Elimination of Nuclear Weapons | |
| September 27 | Sunday | World Tourism Day | Observance |
| September 27 | Sunday | Gold Star Mother's Day | Observance |
| September 28 | Monday | World Rabies Day | |
| September 29 | Tuesday | World Heart Day | |
| October 1 | Thursday | World Vegetarian Day | |
| October 1 | Thursday | International Day of Older Persons | |
| October 2 | Friday | Last day of Sukkot | Jewish holiday |
| October 2 | Friday | International Day of Non-Violence | |
| October 3 | Saturday | Shmini Atzeret | Jewish holiday |
| October 4 | Sunday | Simchat Torah | Jewish holiday |
| October 4 | Sunday | Feast of St Francis of Assisi | Christian holiday |
| October 5 | Monday | World Teachers' Day | |
| October 5 | Monday | Child Health Day | Observance |
| October 5 | Monday | World Habitat Day |
| Date | Weekday | Public holiday name | Public holiday type |
|---|---|---|---|
| January 1 | Friday | New Year's Day | National holiday |
| January 4 | Monday | World Braille Day | Worldwide observance |
| January 6 | Wednesday | Isra and Mi'raj | Muslim holiday |
| January 6 | Wednesday | Epiphany | Common Local holiday |
| January 7 | Thursday | International Programmers' Day | Worldwide observance |
| January 7 | Thursday | Orthodox Christmas Day | Orthodox holiday |
| January 13 | Wednesday | Stephen Foster Memorial Day | Observance |
| January 14 | Thursday | Orthodox New Year | Orthodox holiday |
| January 15 | Friday | Lee-Jackson Day | State holiday |
| January 17 | Sunday | World Religion Day | Worldwide observance |
| January 18 | Monday | Idaho Human Rights Day | State holiday |
| January 18 | Monday | Martin Luther King Jr. Day | Public Holiday |
| January 18 | Monday | Robert E. Lee's Birthday | State holiday |
| January 18 | Monday | Civil Rights Day | State holiday |
| January 19 | Tuesday | Robert E. Lee's Birthday | State holiday |
| January 19 | Tuesday | Confederate Heroes' Day | State holiday |
| January 23 | Saturday | Tu Bishvat/Tu B'Shevat | Jewish holiday |
| January 24 | Sunday | World Leprosy Day | Worldwide observance |
| January 26 | Tuesday | International Customs Day | Worldwide observance |
| January 27 | Wednesday | International Day of Commemoration in Memory of the Victims of the Holocaust | United Nations observance |
| January 29 | Friday | Kansas Day | Observance |
| February 1 | Monday | National Freedom Day | Observance |
| February 2 | Tuesday | World Wetlands Day | Worldwide observance |
| February 2 | Tuesday | Groundhog Day | Observance |
| February 4 | Thursday | World Cancer Day | United Nations observance |
| February 4 | Thursday | Rosa Parks Day | Local observance |
| February 5 | Friday | National Wear Red Day | Observance |
| February 6 | Saturday | Chinese New Year | Observance |
| February 6 | Saturday | International Day of Zero Tolerance for Female Genital Mutilation | |
| February 7 | Sunday | Super Bowl | Sporting event |
| February 8 | Monday | Ramadan starts | Public Holiday |
| February 9 | Tuesday | Shrove Tuesday/Mardi Gras | State holiday |
| February 10 | Wednesday | Ash Wednesday | Christian holiday |
| February 11 | Thursday | International Day of Women and Girls in Science | |
| February 11 | Thursday | World Day of the Sick | Worldwide observance |
| February 12 | Friday | Lincoln's Birthday | State holiday |
| February 13 | Saturday | World Radio Day | United Nations observance |
| February 14 | Sunday | Valentine's Day | Observance |
| February 14 | Sunday | Statehood Day | Public Holiday |
| February 15 | Monday | Daisy Gatson Bates Day | State holiday |
| February 15 | Monday | Presidents' Day | Bank or Public Sector Holiday |
| February 15 | Monday | Susan B. Anthony's Birthday | Local observance |
| February 16 | Tuesday | Elizabeth Peratrovich Day | Local observance |
| February 20 | Saturday | World Day of Social Justice | United Nations observance |
| February 21 | Sunday | International Mother Language Day | United Nations observance |
| February 28 | Sunday | Linus Pauling Day | Local observance |
| March 1 | Monday | Casimir Pulaski Day | State holiday |
| March 1 | Monday | Zero Discrimination Day | United Nations observance |
| March 1 | Monday | Self-Injury Awareness Day | Worldwide observance |
| March 1 | Monday | St. David's Day | Observance |
| March 2 | Tuesday | Texas Independence Day | State holiday |
| March 2 | Tuesday | Read Across America Day | Observance |
| March 2 | Tuesday | Town Meeting Day | State holiday |
| March 3 | Wednesday | World Wildlife Day | United Nations observance |
| March 5 | Friday | Lailat al-Qadr | Public Holiday |
| March 5 | Friday | Employee Appreciation Day | Observance |
| March 8 | Monday | International Women's Day | United Nations observance |
| March 10 | Wednesday | Eid al-Fitr | Public Holiday |
| March 11 | Thursday | World Kidney Day | Worldwide observance |
| March 14 | Sunday | Daylight Saving Time starts | Daylight Saving Time |
| March 17 | Wednesday | St. Patrick's Day | Local holiday |
| March 17 | Wednesday | Evacuation Day | State holiday |
| March 20 | Saturday | International Day of Happiness | United Nations observance |
| March 20 | Saturday | March equinox | Season |
| March 21 | Sunday | International Day of Nowruz | United Nations observance |
| March 21 | Sunday | World Down Syndrome Day | United Nations observance |
| March 21 | Sunday | International Day for the Elimination of Racial Discrimination | United Nations observance |
| March 21 | Sunday | International Day of Forests | United Nations observance |
| March 21 | Sunday | Palm Sunday | Observance |
| March 21 | Sunday | World Poetry Day | United Nations observance |
| March 22 | Monday | World Water Day | United Nations observance |
| March 23 | Tuesday | World Meteorological Day | United Nations observance |
| March 23 | Tuesday | Purim | Jewish holiday |
| March 24 | Wednesday | World Tuberculosis Day | United Nations observance |
| March 24 | Wednesday | International Day for the Right to the Truth concerning Gross Human Rights Violations and for the Dignity of Victims | United Nations observance |
| March 25 | Thursday | International Day of Solidarity with Detained and Missing Staff Members | United Nations observance |
| March 25 | Thursday | Maryland Day | Local observance |
| March 25 | Thursday | International Day of Remembrance of Slavery Victims and the Transatlantic Slave Trade | United Nations observance |
| March 25 | Thursday | Maundy Thursday | Silent Day |
| March 26 | Friday | Good Friday | Silent Day |
| March 26 | Friday | Prince Jonah Kuhio Kalanianaole Day | State holiday |
| March 27 | Saturday | Earth Hour | Worldwide observance |
| March 27 | Saturday | Holy Saturday | Christian holiday |
| March 28 | Sunday | Easter Sunday | Observance |
| March 29 | Monday | National Vietnam War Veterans Day | Observance |
| March 29 | Monday | Easter Monday | National holiday |
| March 29 | Monday | Seward's Day | State holiday |
| March 31 | Wednesday | César Chávez Day | State holiday |
| April 1 | Thursday | April Fool's Day | Worldwide observance |
| April 2 | Friday | World Autism Awareness Day | United Nations observance |
| April 2 | Friday | Pascua Florida Day | Local observance |
| April 4 | Sunday | United Nations' Mine Awareness Day | United Nations observance |
| April 6 | Tuesday | International Day of Sport for Development and Peace | United Nations observance |
| April 6 | Tuesday | National Tartan Day | Observance |
| April 7 | Wednesday | United Nations' World Health Day | United Nations observance |
| April 7 | Wednesday | Day of Remembrance of the Victims of the Rwanda Genocide | United Nations observance |
| April 12 | Monday | International Day of Human Space Flight | United Nations observance |
| April 13 | Tuesday | National Library Workers' Day | Observance |
| April 13 | Tuesday | Thomas Jefferson's Birthday | Observance |
| April 15 | Thursday | Tax Day | Observance |
| April 15 | Thursday | Father Damien Day | Local observance |
| April 16 | Friday | Emancipation Day | Public Holiday |
| April 18 | Sunday | International Day for Monuments and Sites | Worldwide observance |
| April 19 | Monday | Patriot's Day | State holiday |
| April 19 | Monday | Boston Marathon | Sporting event |
| April 20 | Tuesday | Chinese Language Day | |
| April 21 | Wednesday | Administrative Professionals Day | Observance |
| April 21 | Wednesday | San Jacinto Day | State holiday |
| April 22 | Thursday | Passover (first day) | Jewish holiday |
| April 22 | Thursday | Oklahoma Day | Local observance |
| April 22 | Thursday | Earth Day | |
| April 22 | Thursday | Take our Daughters and Sons to Work Day | Observance |
| April 23 | Friday | English Language Day | |
| April 23 | Friday | World Book and Copyright Day | |
| April 25 | Sunday | World Malaria Day | |
| April 26 | Monday | Confederate Memorial Day | State holiday |
| April 26 | Monday | World Intellectual Property Day | |
| April 26 | Monday | International Chernobyl Disaster Remembrance Day | |
| April 26 | Monday | Confederate Heroes' Day | State holiday |
| April 26 | Monday | State Holiday | State holiday |
| April 28 | Wednesday | World Day for Safety and Health at Work | |
| April 29 | Thursday | Day of Remembrance for all Victims of Chemical Warfare | |
| April 29 | Thursday | Last day of Passover | Jewish holiday |
| April 30 | Friday | Arbor Day | Observance |
| April 30 | Friday | Orthodox Good Friday | Orthodox holiday |
| April 30 | Friday | International Jazz Day | |
| April 30 | Friday | Kentucky Oaks | Sporting event |
| May 1 | Saturday | Kentucky Derby | Sporting event |
| May 1 | Saturday | Lei Day | Local observance |
| May 1 | Saturday | Law Day | Observance |
| May 1 | Saturday | Loyalty Day | Observance |
| May 1 | Saturday | Orthodox Holy Saturday | Orthodox holiday |
| May 1 | Saturday | National Explosive Ordnance Disposal (EOD) Day | Observance |
| May 2 | Sunday | World Tuna Day | |
| May 2 | Sunday | Orthodox Easter | Orthodox holiday |
| May 3 | Monday | World Press Freedom Day | |
| May 3 | Monday | Orthodox Easter Monday | Orthodox holiday |
| May 4 | Tuesday | Kent State Shootings Remembrance | Local observance |
| May 4 | Tuesday | Yom HaShoah | Jewish holiday |
| May 4 | Tuesday | Rhode Island Independence Day | Local observance |
| May 5 | Wednesday | Cinco de Mayo | Observance |
| May 6 | Thursday | National Nurses Day | Observance |
| May 6 | Thursday | National Day of Prayer | Observance |
| May 6 | Thursday | Ascension Day | National holiday |
| May 7 | Friday | Truman Day observed | State holiday |
| May 7 | Friday | Military Spouse Appreciation Day | Observance |
| May 8 | Saturday | Time of Remembrance and Reconciliation for Those Who Lost Their Lives during the Second World War | |
| May 8 | Saturday | World Ovarian Cancer Day | |
| May 8 | Saturday | World Migratory Bird Day | |
| May 8 | Saturday | Truman Day | State holiday |
| May 9 | Sunday | Mother's Day | Observance |
| May 10 | Monday | Confederate Memorial Day | State holiday |
| May 12 | Wednesday | Yom Ha'atzmaut | Jewish holiday |
| May 12 | Wednesday | International Nurses Day | |
| May 15 | Saturday | Peace Officers Memorial Day | Observance |
| May 15 | Saturday | Preakness Stakes | Sporting event |
| May 15 | Saturday | Armed Forces Day | Observance |
| May 15 | Saturday | International Day of Families | |
| May 16 | Sunday | Pentecost | Christian holiday |
| May 17 | Monday | World Information Society Day | |
| May 17 | Monday | Whit Monday | National holiday |
| May 17 | Monday | Eid al-Adha | Public Holiday |
| May 19 | Wednesday | Emergency Medical Services for Children Day | Observance |
| May 20 | Thursday | World Autoimmune / Autoinflammatory Arthritis Day | |
| May 21 | Friday | World Day for Cultural Diversity for Dialogue and Development | |
| May 21 | Friday | National Defense Transportation Day | Observance |
| May 22 | Saturday | National Maritime Day | Observance |
| May 22 | Saturday | Harvey Milk Day | Local observance |
| May 22 | Saturday | International Day for Biological Diversity | |
| May 23 | Sunday | Trinity Sunday | Christian holiday |
| May 23 | Sunday | International Day to End Obstetric Fistula | |
| May 25 | Tuesday | African Liberation Day | |
| May 25 | Tuesday | Lag BaOmer | Jewish holiday |
| May 25 | Tuesday | National Missing Children's Day | Observance |
| May 27 | Thursday | Corpus Christi | Common Local holiday |
| May 29 | Saturday | International Day of United Nations Peacekeepers | |
| May 31 | Monday | Memorial Day | Local observance |
| May 31 | Monday | Jefferson Davis' Birthday | Local observance |
| May 31 | Monday | World No Tobacco Day | |
| June 1 | Tuesday | Global Day of Parents | |
| June 1 | Tuesday | Statehood Day | Public Holiday |
| June 3 | Thursday | Jefferson Davis' Birthday | Local observance |
| June 4 | Friday | International Day of Innocent Children Victims of Aggression | |
| June 5 | Saturday | World Environment Day | Observance |
| June 5 | Saturday | Belmont Stakes | Sporting event |
| June 6 | Sunday | Muharram | Public Holiday |
| June 6 | Sunday | D-Day | Observance |
| June 7 | Monday | Jefferson Davis' Birthday | Local observance |
| June 8 | Tuesday | World Oceans Day | |
| June 11 | Friday | Kamehameha Day | State holiday |
| June 11 | Friday | Shavuot | Jewish holiday |
| June 12 | Saturday | World Day Against Child Labour | |
| June 13 | Sunday | Bunker Hill Day | Local observance |
| June 13 | Sunday | International Albinism Awareness Day | |
| June 14 | Monday | Flag Day | Public Holiday |
| June 14 | Monday | Army Birthday | Observance |
| June 14 | Monday | World Blood Donor Day | |
| June 15 | Tuesday | World Elder Abuse Awareness Day | |
| June 16 | Wednesday | International Day of Family Remittances | |
| June 17 | Thursday | World Day to Combat Desertification and Drought | |
| June 19 | Saturday | Emancipation Day | Public Holiday |
| June 19 | Saturday | Juneteenth | Local observance |
| June 19 | Saturday | International Day for the Elimination of Sexual Violence in Conflict | |
| June 20 | Sunday | West Virginia Day | State holiday |
| June 20 | Sunday | World Refugee Day | |
| June 20 | Sunday | American Eagle Day | Observance |
| June 20 | Sunday | Father's Day | Observance |
| June 21 | Monday | International Day of Yoga | |
| June 21 | Monday | West Virginia Day observed | State holiday |
| June 21 | Monday | June Solstice | Season |
| June 23 | Wednesday | Public Service Day | |
| June 23 | Wednesday | International Widows' Day | |
| June 25 | Friday | Day of the Seafarer | |
| June 26 | Saturday | International Day Against Drug Abuse and Illicit Trafficking | |
| June 26 | Saturday | International Day in Support of Victims of Torture | |
| June 30 | Wednesday | International Asteroid Day | |
| July 3 | Saturday | International Day of Cooperatives | |
| July 4 | Sunday | Independence Day | Public Holiday |
| July 5 | Monday | Independence Day observed | Public Holiday |
| July 11 | Sunday | World Population Day | |
| July 14 | Wednesday | Bastille Day | Public Holiday |
| July 15 | Thursday | World Youth Skills Day | |
| July 18 | Sunday | Nelson Mandela Day | Observance |
| July 23 | Friday | Pioneer Day observed | State holiday |
| July 24 | Saturday | Pioneer Day | State holiday |
| July 25 | Sunday | Parents' Day | Observance |
| July 27 | Tuesday | National Korean War Veterans Armistice Day | Observance |
| July 28 | Wednesday | World Hepatitis Day | |
| July 30 | Friday | International Day of Friendship | |
| July 30 | Friday | World Day against Trafficking in Persons | |
| August 1 | Sunday | Colorado Day | Local observance |
| August 4 | Wednesday | Coast Guard Birthday | Observance |
| August 7 | Saturday | Purple Heart Day | Observance |
| August 9 | Monday | International Day of the World's Indigenous People | |
| August 9 | Monday | Victory Day | Public Holiday |
| August 12 | Thursday | International Youth Day | |
| August 12 | Thursday | Tisha B'Av | Jewish holiday |
| August 13 | Friday | Friday the 13th | Worldwide observance |
| August 15 | Sunday | The Prophet's Birthday | Public Holiday |
| August 15 | Sunday | Assumption of Mary | Common Local holiday |
| August 16 | Monday | Bennington Battle Day | State holiday |
| August 19 | Thursday | World Humanitarian Day | |
| August 19 | Thursday | National Aviation Day | Observance |
| August 20 | Friday | Statehood Day in Hawaii | State holiday |
| August 21 | Saturday | Senior Citizens Day | Public Holiday |
| August 23 | Monday | International Day for the Remembrance of the Slave Trade and its Abolition | |
| August 26 | Thursday | Women's Equality Day | Observance |
| August 27 | Friday | Lyndon Baines Johnson Day | State holiday |
| August 29 | Sunday | International Day against Nuclear Tests | |
| August 30 | Monday | International Day of the Victims of Enforced Disappearances | |
| August 31 | Tuesday | International Overdose Awareness Day | |
| September 4 | Saturday | World Sexual Health Day | |
| September 5 | Sunday | International Day of Charity | |
| September 6 | Monday | Labor Day | Public Holiday |
| September 8 | Wednesday | International Literacy Day | |
| September 9 | Thursday | California Admission Day | Local observance |
| September 10 | Friday | World Suicide Prevention Day | |
| September 11 | Saturday | Patriot Day | Observance |
| September 11 | Saturday | Carl Garner Federal Lands Cleanup Day | Observance |
| September 12 | Sunday | International Day for South-South Cooperation | |
| September 12 | Sunday | National Grandparents Day | Observance |
| September 13 | Monday | International Programmers' Day | Worldwide observance |
| September 15 | Wednesday | International Day of Democracy | |
| September 16 | Thursday | International Day for the Preservation of the Ozone Layer | |
| September 17 | Friday | Constitution Day and Citizenship Day | Observance |
| September 17 | Friday | National POW/MIA Recognition Day | Observance |
| September 18 | Saturday | Air Force Birthday | Observance |
| September 21 | Tuesday | International Day of Peace | |
| September 22 | Wednesday | Emancipation Day | Public Holiday |
| September 23 | Thursday | World Maritime Day | |
| September 23 | Thursday | September equinox | Season |
| September 23 | Thursday | International Celebrate Bisexuality Day | |
| September 24 | Friday | Native American Day | Local observance |
| September 26 | Sunday | International Day for the Total Elimination of Nuclear Weapons | |
| September 26 | Sunday | Gold Star Mother's Day | Observance |
| September 27 | Monday | World Tourism Day | Observance |
| September 28 | Tuesday | World Rabies Day | |
| September 29 | Wednesday | World Heart Day | |
| October 1 | Friday | World Vegetarian Day | |
| October 1 | Friday | International Day of Older Persons | |
| October 2 | Saturday | International Day of Non-Violence | |
| October 2 | Saturday | Rosh Hashana | Jewish holiday |
| October 4 | Monday | Child Health Day | Observance |
| October 4 | Monday | World Habitat Day | |
| October 4 | Monday | Feast of St Francis of Assisi | Christian holiday |
| October 5 | Tuesday | World Teachers' Day | |
| October 6 | Wednesday | World Cerebral Palsy Day | |
| October 9 | Saturday | World Post Day | |
| October 9 | Saturday | Leif Erikson Day | Observance |
| October 10 | Sunday | World Mental Health Day | |
| October 11 | Monday | International Day of the Girl Child | |
| October 11 | Monday | Native Americans' Day | Local observance |
| October 11 | Monday | Columbus Day | Observance |