2021 Holiday Calendar Us | Us 2021 Holidays
Check out the Year 2021 Us Holidays List which includes all the holidays of Us like Federal Holidays 2021 + Us Bank Holidays 2021, Us Public Holidays Or Us National Holidays 2021, even Us State Holidays 2021 & Us School Holidays 2021. Here in the list, you'll find that we have categorized all the 2021 holidays in different types so that people can understand it easily & categorize their type of holidays 2021. You can fit your 2021 Us Holidays in your calendar & make your personal planning or professional planning according to the need for the Year 2021. We have also Covered up all religion holidays consisting of Us Jewish Holidays 2021, Us Christian Holidays 2021, Us Muslim Holidays 2021.
You can download this List of 2021 Us Holidays from the Holiday Image Provided below or you can copy the entire list of the Year 2021.
| Date | Day | Holiday | Type | Year |
|---|---|---|---|---|
| 1st January | Friday | New Year Day | Federal Holiday | 2021 |
| 4th January | Monday | World Braille Day | Worldwide observance | 2021 |
| 6th January | Wednesday | Epiphany | Christian | 2021 |
| 7th January | Thursday | Orthodox Christmas Day | Orthodox | 2021 |
| 13th January | Wednesday | Stephen Foster Memorial Day | Observance | 2021 |
| 14th January | Thursday | Orthodox New Year | Orthodox | 2021 |
| 15th January | Friday | Lee-Jackson Day | State holiday | 2021 |
| 17th January | Sunday | World Religion Day | Worldwide observance | 2021 |
| 18th January | Monday | Martin Luther King Jr. Day | Federal Holiday | 2021 |
| 18th January | Monday | Robert E. Lee Birthday | State holiday | 2021 |
| 18th January | Monday | Idaho Human Rights Day | State holiday | 2021 |
| 18th January | Monday | Civil Rights Day | State holiday | 2021 |
| 19th January | Tuesday | Robert E. Lee Birthday | State holiday | 2021 |
| 20th January | Wednesday | Inauguration Day | State holiday | 2021 |
| 24th January | Sunday | World Leprosy Day | Worldwide observance | 2021 |
| 26th January | Tuesday | International Customs Day | Worldwide observance | 2021 |
| 27th January | Wednesday | International Day of Commemoration in Memory of the Victims of the Holocaust | United Nations observance | 2021 |
| 29th January | Friday | Kansas Day | Observance | 2021 |
| 1st February | Monday | National Freedom Day | Observance | 2021 |
| 2nd February | Tuesday | World Wetlands Day | Worldwide observance | 2021 |
| 2nd February | Tuesday | Groundhog Day | Observance | 2021 |
| 4th February | Thursday | World Cancer Day | United Nations observance | 2021 |
| 4th February | Thursday | Rosa Parks Day | Local observance | 2021 |
| 5th February | Friday | National Wear Red Day | Observance | 2021 |
| 6th February | Saturday | International Day of Zero Tolerance for Female Genital Mutilation | United Nations observance | 2021 |
| 7th February | Sunday | Super Bowl | Sporting event | 2021 |
| 11th February | Thursday | International Day of Women and Girls in Science | United Nations observance | 2021 |
| 11th February | Thursday | World Day of the Sick | Worldwide observance | 2021 |
| 12th February | Friday | Lincoln Birthday | State holiday | 2021 |
| 12th February | Friday | Lincoln Birthday | Local observance | 2021 |
| 12th February | Friday | Chinese New Year | Observance | 2021 |
| 13th February | Saturday | World Radio Day | United Nations observance | 2021 |
| 14th February | Sunday | Valentine Day | Observance | 2021 |
| 14th February | Sunday | Statehood Day | Local observance | 2021 |
| 15th February | Monday | Daisy Gatson Bates Day | State holiday | 2021 |
| 15th February | Monday | Susan B. Anthony Birthday | Local observance | 2021 |
| 16th February | Tuesday | Shrove Tuesday/Mardi Gras | State holiday | 2021 |
| 16th February | Tuesday | Shrove Tuesday/Mardi Gras | State holiday | 2021 |
| 16th February | Tuesday | Shrove Tuesday/Mardi Gras | Observance, Christian | 2021 |
| 16th February | Tuesday | Elizabeth Peratrovich Day | Local observance | 2021 |
| 17th February | Wednesday | Ash Wednesday | Christian | 2021 |
| 20th February | Saturday | World Day of Social Justice | United Nations observance | 2021 |
| 21st February | Sunday | International Mother Language Day | United Nations observance | 2021 |
| 26th February | Friday | Purim | Jewish holiday | 2021 |
| 28th February | Sunday | Linus Pauling Day | Local observance | 2021 |
| 1st March | Monday | Zero Discrimination Day | United Nations observance | 2021 |
| 1st March | Monday | Self-Injury Awareness Day | Worldwide observance | 2021 |
| 1st March | Monday | St. David Day | Observance, Christian | 2021 |
| 1st March | Monday | Casimir Pulaski Day | Local observance | 2021 |
| 2nd March | Tuesday | Texas Independence Day | State holiday | 2021 |
| 2nd March | Tuesday | Read Across America Day | Observance | 2021 |
| 2nd March | Tuesday | Town Meeting Day | State holiday | 2021 |
| 3rd March | Wednesday | World Wildlife Day | United Nations observance | 2021 |
| 5th March | Friday | Employee Appreciation Day | Observance | 2021 |
| 8th March | Monday | International Women Day | United Nations observance | 2021 |
| 11th March | Thursday | World Kidney Day | Worldwide observance | 2021 |
| 14th March | Sunday | Daylight Saving Time starts | Clock change/Daylight Saving Time | 2021 |
| 17th March | Wednesday | St. Patrick Day | Observance, Christian | 2021 |
| 17th March | Wednesday | Evacuation Day | State holiday | 2021 |
| 20th March | Saturday | March Equinox | Season | 2021 |
| 20th March | Saturday | International Day of Happiness | United Nations observance | 2021 |
| 21st March | Sunday | International Day for the Elimination of Racial Discrimination | United Nations observance | 2021 |
| 21st March | Sunday | World Poetry Day | United Nations observance | 2021 |
| 21st March | Sunday | International Day of Nowruz | United Nations observance | 2021 |
| 21st March | Sunday | World Down Syndrome Day | United Nations observance | 2021 |
| 21st March | Sunday | International Day of Forests | United Nations observance | 2021 |
| 22nd March | Monday | World Water Day | United Nations observance | 2021 |
| 23rd March | Tuesday | World Meteorological Day | United Nations observance | 2021 |
| 24th March | Wednesday | World Tuberculosis Day | United Nations observance | 2021 |
| 24th March | Wednesday | International Day for the Right to the Truth concerning Gross Human Rights Violations and for the Di | United Nations observance | 2021 |
| 25th March | Thursday | International Day of Remembrance of Slavery Victims and the Transatlantic Slave Trade | United Nations observance | 2021 |
| 25th March | Thursday | International Day of Solidarity with Detained and Missing Staff Members | United Nations observance | 2021 |
| 25th March | Thursday | Maryland Day | Local observance | 2021 |
| 26th March | Friday | Prince Jonah Kuhio Kalanianaole Day | State holiday | 2021 |
| 27th March | Saturday | Earth Hour | Worldwide observance | 2021 |
| 28th March | Sunday | Palm Sunday | Christian | 2021 |
| 28th March | Sunday | Passover (first day) | Jewish holiday | 2021 |
| 29th March | Monday | Seward Day | State holiday | 2021 |
| 29th March | Monday | National Vietnam War Veterans Day | Observance | 2021 |
| 31st March | Wednesday | César Chávez Day | State holiday | 2021 |
| 1st April | Thursday | Maundy Thursday | Christian | 2021 |
| 1st April | Thursday | April Fool Day | Worldwide observance | 2021 |
| 2nd April | Friday | World Autism Awareness Day | United Nations observance | 2021 |
| 2nd April | Friday | Good Friday | State holiday | 2021 |
| 2nd April | Friday | Pascua Florida Day | Local observance | 2021 |
| 3rd April | Saturday | Holy Saturday | Christian | 2021 |
| 4th April | Sunday | Last Day of Passover | Jewish holiday | 2021 |
| 4th April | Sunday | Easter Sunday | Observance, Christian | 2021 |
| 5th April | Monday | Easter Monday | Observance, Christian | 2021 |
| 6th April | Tuesday | International Day of Sport for Development and Peace | United Nations observance | 2021 |
| 6th April | Tuesday | National Tartan Day | Observance | 2021 |
| 7th April | Wednesday | Yom HaShoah | Jewish commemoration | 2021 |
| 7th April | Wednesday | Day of Remembrance of the Victims of the Rwanda Genocide | United Nations observance | 2021 |
| 12th April | Monday | International Day of Human Space Flight | United Nations observance | 2021 |
| 13th April | Tuesday | Ramadan Starts | Muslim | 2021 |
| 13th April | Tuesday | Thomas Jefferson Birthday | Observance | 2021 |
| 15th April | Thursday | Tax Day | Observance | 2021 |
| 15th April | Thursday | Father Damien Day | Local observance | 2021 |
| 16th April | Friday | Emancipation Day | State holiday | 2021 |
| 18th April | Sunday | International Day for Monuments and Sites | Worldwide observance | 2021 |
| 19th April | Monday | Patriot Day | State holiday | 2021 |
| 19th April | Monday | Boston Marathon | Sporting event | 2021 |
| 20th April | Tuesday | Chinese Language Day | United Nations observance | 2021 |
| 21st April | Wednesday | San Jacinto Day | State holiday | 2021 |
| 21st April | Wednesday | Administrative Professionals Day | Observance | 2021 |
| 22nd April | Thursday | Earth Day | United Nations observance | 2021 |
| 22nd April | Thursday | Oklahoma Day | Local observance | 2021 |
| 22nd April | Thursday | Take our Daughters and Sons to Work Day | Observance | 2021 |
| 23rd April | Friday | World Book and Copyright Day | United Nations observance | 2021 |
| 23rd April | Friday | English Language Day | United Nations observance | 2021 |
| 25th April | Sunday | World Malaria Day | United Nations observance | 2021 |
| 26th April | Monday | World Intellectual Property Day | United Nations observance | 2021 |
| 26th April | Monday | International Chernobyl Disaster Remembrance Day | United Nations observance | 2021 |
| 26th April | Monday | Confederate Memorial Day | State holiday | 2021 |
| 26th April | Monday | Confederate Memorial Day | State holiday | 2021 |
| 26th April | Monday | State Holiday | State holiday | 2021 |
| 28th April | Wednesday | World Day for Safety and Health at Work | United Nations observance | 2021 |
| 29th April | Thursday | Day of Remembrance for all Victims of Chemical Warfare | United Nations observance | 2021 |
| 30th April | Friday | Lag BaOmer | Jewish holiday | 2021 |
| 30th April | Friday | Orthodox Good Friday | Orthodox | 2021 |
| 30th April | Friday | International Jazz Day | United Nations observance | 2021 |
| 30th April | Friday | Arbor Day | State holiday | 2021 |
| 30th April | Friday | Kentucky Oaks | Sporting event | 2021 |
| 1st May | Saturday | Orthodox Holy Saturday | Orthodox | 2021 |
| 1st May | Saturday | Kentucky Derby | Sporting event | 2021 |
| 1st May | Saturday | Law Day | Observance | 2021 |
| 1st May | Saturday | Loyalty Day | Observance | 2021 |
| 1st May | Saturday | National Explosive Ordnance Disposal (EOD) Day | Observance | 2021 |
| 1st May | Saturday | Lei Day | Local observance | 2021 |
| 2nd May | Sunday | Orthodox Easter | Orthodox | 2021 |
| 2nd May | Sunday | World Tuna Day | United Nations observance | 2021 |
| 3rd May | Monday | Orthodox Easter Monday | Orthodox | 2021 |
| 3rd May | Monday | World Press Freedom Day | United Nations observance | 2021 |
| 4th May | Tuesday | Kent State Shootings Remembrance | Local observance | 2021 |
| 4th May | Tuesday | Rhode Island Independence Day | Local observance | 2021 |
| 5th May | Wednesday | Cinco de Mayo | Observance | 2021 |
| 6th May | Thursday | National Nurses Day | Observance | 2021 |
| 6th May | Thursday | National Day of Prayer | Observance | 2021 |
| 7th May | Friday | Truman Day observed | State holiday | 2021 |
| 7th May | Friday | Military Spouse Appreciation Day | Observance | 2021 |
| 8th May | Saturday | Lailat al-Qadr | Muslim | 2021 |
| 8th May | Saturday | Time of Remembrance and Reconciliation for Those Who Lost Their Lives during the Second World War | United Nations observance | 2021 |
| 8th May | Saturday | World Migratory Bird Day | United Nations observance | 2021 |
| 8th May | Saturday | World Ovarian Cancer Day | Worldwide observance | 2021 |
| 8th May | Saturday | Truman Day | State holiday | 2021 |
| 9th May | Sunday | Mother Day | Observance | 2021 |
| 10th May | Monday | Confederate Memorial Day | State holiday | 2021 |
| 10th May | Monday | Confederate Memorial Day | Local observance | 2021 |
| 12th May | Wednesday | International Nurses Day | Worldwide observance | 2021 |
| 13th May | Thursday | Ascension Day | Christian | 2021 |
| 13th May | Thursday | Eid al-Fitr | Muslim | 2021 |
| 15th May | Saturday | International Day of Families | United Nations observance | 2021 |
| 15th May | Saturday | Peace Officers Memorial Day | Observance | 2021 |
| 15th May | Saturday | Armed Forces Day | Observance | 2021 |
| 15th May | Saturday | Preakness Stakes | Sporting event | 2021 |
| 17th May | Monday | Shavuot | Jewish holiday | 2021 |
| 17th May | Monday | World Information Society Day | United Nations observance | 2021 |
| 19th May | Wednesday | Emergency Medical Services for Children Day | Observance | 2021 |
| 20th May | Thursday | World Autoimmune / Autoinflammatory Arthritis Day | Worldwide observance | 2021 |
| 21st May | Friday | World Day for Cultural Diversity for Dialogue and Development | United Nations observance | 2021 |
| 21st May | Friday | National Defense Transportation Day | Observance | 2021 |
| 22nd May | Saturday | International Day for Biological Diversity | United Nations observance | 2021 |
| 22nd May | Saturday | National Maritime Day | Observance | 2021 |
| 22nd May | Saturday | Harvey Milk Day | Local observance | 2021 |
| 23rd May | Sunday | Pentecost | Christian | 2021 |
| 23rd May | Sunday | International Day to End Obstetric Fistula | United Nations observance | 2021 |
| 24th May | Monday | Whit Monday | Christian | 2021 |
| 25th May | Tuesday | African Liberation Day | Worldwide observance | 2021 |
| 25th May | Tuesday | National Missing Children Day | Observance | 2021 |
| 29th May | Saturday | International Day of United Nations Peacekeepers | United Nations observance | 2021 |
| 30th May | Sunday | Trinity Sunday | Christian | 2021 |
| 31st May | Monday | World No Tobacco Day | United Nations observance | 2021 |
| 31st May | Monday | Memorial Day | Federal Holiday | 2021 |
| 1st June | Tuesday | Global Day of Parents | United Nations observance | 2021 |
| 1st June | Tuesday | Statehood Day | Local observance | 2021 |
| 3rd June | Thursday | Corpus Christi | Christian | 2021 |
| 4th June | Friday | International Day of Innocent Children Victims of Aggression | United Nations observance | 2021 |
| 5th June | Saturday | World Environment Day | United Nations observance | 2021 |
| 5th June | Saturday | Belmont Stakes | Sporting event | 2021 |
| 6th June | Sunday | D-Day | Observance | 2021 |
| 8th June | Tuesday | World Oceans Day | United Nations observance | 2021 |
| 11th June | Friday | Kamehameha Day | State holiday | 2021 |
| 12th June | Saturday | World Day Against Child Labour | United Nations observance | 2021 |
| 13th June | Sunday | International Albinism Awareness Day | United Nations observance | 2021 |
| 13th June | Sunday | Bunker Hill Day | Local observance | 2021 |
| 14th June | Monday | World Blood Donor Day | United Nations observance | 2021 |
| 14th June | Monday | Army Birthday | Observance | 2021 |
| 14th June | Monday | Flag Day | Observance | 2021 |
| 15th June | Tuesday | World Elder Abuse Awareness Day | United Nations observance | 2021 |
| 16th June | Wednesday | International Day of Family Remittances | United Nations observance | 2021 |
| 17th June | Thursday | World Day to Combat Desertification and Drought | United Nations observance | 2021 |
| 19th June | Saturday | International Day for the Elimination of Sexual Violence in Conflict | United Nations observance | 2021 |
| 19th June | Saturday | Emancipation Day | State holiday | 2021 |
| 19th June | Saturday | Juneteenth | Local observance | 2021 |
| 20th June | Sunday | June Solstice | Season | 2021 |
| 20th June | Sunday | World Refugee Day | United Nations observance | 2021 |
| 20th June | Sunday | Father Day | Observance | 2021 |
| 20th June | Sunday | West Virginia Day | State holiday | 2021 |
| 20th June | Sunday | American Eagle Day | Observance | 2021 |
| 21st June | Monday | International Day of Yoga | United Nations observance | 2021 |
| 21st June | Monday | West Virginia Day observed | State holiday | 2021 |
| 23rd June | Wednesday | Public Service Day | United Nations observance | 2021 |
| 25th June | Friday | Day of the Seafarer | United Nations observance | 2021 |
| 26th June | Saturday | International Day Against Drug Abuse and Illicit Trafficking | United Nations observance | 2021 |
| 26th June | Saturday | International Day in Support of Victims of Torture | United Nations observance | 2021 |
| 30th June | Wednesday | International Asteroid Day | United Nations observance | 2021 |
| 3rd July | Saturday | International Day of Cooperatives | United Nations observance | 2021 |
| 4th July | Sunday | Independence Day | Federal Holiday | 2021 |
| 5th July | Monday | Independence Day observed | Federal Holiday | 2021 |
| 11th July | Sunday | World Population Day | United Nations observance | 2021 |
| 13th July | Tuesday | Nathan Bedford Forrest Day | Local observance | 2021 |
| 14th July | Wednesday | Bastille Day | Observance | 2021 |
| 15th July | Thursday | World Youth Skills Day | United Nations observance | 2021 |
| 18th July | Sunday | Nelson Mandela Day | United Nations observance | 2021 |
| 20th July | Tuesday | Eid al-Adha | Muslim | 2021 |
| 23rd July | Friday | Pioneer Day observed | State holiday | 2021 |
| 24th July | Saturday | Pioneer Day | State holiday | 2021 |
| 27th July | Tuesday | National Korean War Veterans Armistice Day | Observance | 2021 |
| 28th July | Wednesday | World Hepatitis Day | United Nations observance | 2021 |
| 30th July | Friday | International Day of Friendship | United Nations observance | 2021 |
| 30th July | Friday | World Day against Trafficking in Persons | United Nations observance | 2021 |
| 1st August | Sunday | Colorado Day | Local observance | 2021 |
| 4th August | Wednesday | Coast Guard Birthday | Observance | 2021 |
| 7th August | Saturday | Purple Heart Day | Observance | 2021 |
| 9th August | Monday | International Day of the World Indigenous People | United Nations observance | 2021 |
| 9th August | Monday | Victory Day | State holiday | 2021 |
| 10th August | Tuesday | Muharram | Muslim | 2021 |
| 12th August | Thursday | International Youth Day | United Nations observance | 2021 |
| 13th August | Friday | Friday the 13th | Worldwide observance | 2021 |
| 15th August | Sunday | Assumption of Mary | Christian | 2021 |
| 16th August | Monday | Bennington Battle Day | State holiday | 2021 |
| 19th August | Thursday | World Humanitarian Day | United Nations observance | 2021 |
| 19th August | Thursday | National Aviation Day | Observance | 2021 |
| 20th August | Friday | Hawaii Statehood Day | State holiday | 2021 |
| 21st August | Saturday | Senior Citizens Day | Observance | 2021 |
| 23rd August | Monday | International Day for the Remembrance of the Slave Trade and its Abolition | United Nations observance | 2021 |
| 26th August | Thursday | Women Equality Day | Observance | 2021 |
| 27th August | Friday | Lyndon Baines Johnson Day | State holiday | 2021 |
| 29th August | Sunday | International Day against Nuclear Tests | United Nations observance | 2021 |
| 30th August | Monday | International Day of the Victims of Enforced Disappearances | United Nations observance | 2021 |
| 31st August | Tuesday | International Overdose Awareness Day | Worldwide observance | 2021 |
| 4th September | Saturday | World Sexual Health Day | Worldwide observance | 2021 |
| 5th September | Sunday | International Day of Charity | United Nations observance | 2021 |
| 6th September | Monday | Labor Day | Federal Holiday | 2021 |
| 7th September | Tuesday | Rosh Hashana | Jewish holiday | 2021 |
| 7th September | Tuesday | Rosh Hashana | State holiday | 2021 |
| 8th September | Wednesday | International Literacy Day | United Nations observance | 2021 |
| 9th September | Thursday | California Admission Day | Local observance | 2021 |
| 10th September | Friday | World Suicide Prevention Day | United Nations observance | 2021 |
| 11th September | Saturday | Patriot Day | Observance | 2021 |
| 11th September | Saturday | Carl Garner Federal Lands Cleanup Day | Observance | 2021 |
| 12th September | Sunday | International Day for South-South Cooperation | United Nations observance | 2021 |
| 12th September | Sunday | National Grandparents Day | Observance | 2021 |
| 15th September | Wednesday | International Day of Democracy | United Nations observance | 2021 |
| 16th September | Thursday | International Day for the Preservation of the Ozone Layer | United Nations observance | 2021 |
| 16th September | Thursday | Yom Kippur | Jewish holiday | 2021 |
| 16th September | Thursday | Yom Kippur | State holiday | 2021 |
| 17th September | Friday | Constitution Day and Citizenship Day | Observance | 2021 |
| 17th September | Friday | National POW/MIA Recognition Day | Observance | 2021 |
| 18th September | Saturday | Air Force Birthday | Observance | 2021 |
| 18th September | Saturday | National CleanUp Day | Observance | 2021 |
| 21st September | Tuesday | First Day of Sukkot | Jewish holiday | 2021 |
| 21st September | Tuesday | International Day of Peace | United Nations observance | 2021 |
| 22nd September | Wednesday | September Equinox | Season | 2021 |
| 22nd September | Wednesday | Emancipation Day | Local observance | 2021 |
| 23rd September | Thursday | World Maritime Day | United Nations observance | 2021 |
| 23rd September | Thursday | International Celebrate Bisexuality Day | Worldwide observance | 2021 |
| 24th September | Friday | Native American Day | Local observance | 2021 |
| 26th September | Sunday | International Day for the Total Elimination of Nuclear Weapons | United Nations observance | 2021 |
| 26th September | Sunday | Gold Star Mother Day | Observance | 2021 |
| 27th September | Monday | Last Day of Sukkot | Jewish holiday | 2021 |
| 27th September | Monday | World Tourism Day | United Nations observance | 2021 |
| 28th September | Tuesday | Shmini Atzeret | Jewish holiday | 2021 |
| 28th September | Tuesday | World Rabies Day | United Nations observance | 2021 |
| 29th September | Wednesday | Simchat Torah | Jewish holiday | 2021 |
| 29th September | Wednesday | World Heart Day | Worldwide observance | 2021 |
| 1st October | Friday | International Day of Older Persons | United Nations observance | 2021 |
| 1st October | Friday | World Vegetarian Day | Worldwide observance | 2021 |
| 2nd October | Saturday | International Day of Non-Violence | United Nations observance | 2021 |
| 4th October | Monday | Feast of St Francis of Assisi | Christian | 2021 |
| 4th October | Monday | World Habitat Day | United Nations observance | 2021 |
| 4th October | Monday | Child Health Day | Observance | 2021 |
| 6th October | Wednesday | World Cerebral Palsy Day | Worldwide observance | 2021 |
| 9th October | Saturday | World Post Day | United Nations observance | 2021 |
| 9th October | Saturday | Leif Erikson Day | Observance | 2021 |
| 10th October | Sunday | World Mental Health Day | United Nations observance | 2021 |
| 11th October | Monday | International Day of the Girl Child | United Nations observance | 2021 |
| 11th October | Monday | Columbus Day | Local observance | 2021 |
| 11th October | Monday | Columbus Day | Federal Holiday | 2021 |
| 11th October | Monday | Indigenous People Day | Local observance | 2021 |
| 13th October | Wednesday | International Day for Natural Disaster Reduction | United Nations observance | 2021 |
| 13th October | Wednesday | Navy Birthday | Observance | 2021 |
| 14th October | Thursday | World Sight Day | Worldwide observance | 2021 |
| 15th October | Friday | International Day of Rural Women | United Nations observance | 2021 |
| 15th October | Friday | White Cane Safety Day | Observance | 2021 |
| 15th October | Friday | Boss Day | Observance | 2021 |
| 16th October | Saturday | World Food Day | United Nations observance | 2021 |
| 16th October | Saturday | Sweetest Day | Observance | 2021 |
| 17th October | Sunday | International Day for the Eradication of Poverty | United Nations observance | 2021 |
| 18th October | Monday | Alaska Day | State holiday | 2021 |
| 19th October | Tuesday | The Prophet Birthday | Muslim | 2021 |
| 24th October | Sunday | United Nations Day | United Nations observance | 2021 |
| 24th October | Sunday | World Development Information Day | United Nations observance | 2021 |
| 27th October | Wednesday | World Day for Audiovisual Heritage | United Nations observance | 2021 |
| 29th October | Friday | World Stroke Day | Worldwide observance | 2021 |
| 29th October | Friday | Nevada Day | State holiday | 2021 |
| 31st October | Sunday | World Cities Day | United Nations observance | 2021 |
| 31st October | Sunday | Halloween | Observance | 2021 |
| 1st November | Monday | World Vegan Day | Worldwide observance | 2021 |
| 2nd November | Tuesday | International Day to End Impunity for Crimes against Journalists | United Nations observance | 2021 |
| 4th November | Thursday | Diwali/Deepavali | Observance, Hinduism | 2021 |
| 6th November | Saturday | International Day for Preventing the Exploitation of the Environment in War and Armed Conflict | United Nations observance | 2021 |
| 7th November | Sunday | Daylight Saving Time ends | Clock change/Daylight Saving Time | 2021 |
| 7th November | Sunday | New York City Marathon | Sporting event | 2021 |
| 10th November | Wednesday | World Science Day for Peace and Development | United Nations observance | 2021 |
| 10th November | Wednesday | Marine Corps Birthday | Observance | 2021 |
| 11th November | Thursday | Veterans Day | Federal Holiday | 2021 |
| 12th November | Friday | World Pneumonia Day | Worldwide observance | 2021 |
| 14th November | Sunday | World Diabetes Day | United Nations observance | 2021 |
| 16th November | Tuesday | International Day for Tolerance | United Nations observance | 2021 |
| 17th November | Wednesday | World Prematurity Day | Worldwide observance | 2021 |
| 18th November | Thursday | World Philosophy Day | United Nations observance | 2021 |
| 19th November | Friday | World Toilet Day | United Nations observance | 2021 |
| 19th November | Friday | International Men Day | Worldwide observance | 2021 |
| 20th November | Saturday | Universal Children Day | United Nations observance | 2021 |
| 20th November | Saturday | Africa Industrialization Day | United Nations observance | 2021 |
| 21st November | Sunday | World Day of Remembrance for Road Traffic Victims | United Nations observance | 2021 |
| 21st November | Sunday | World Television Day | United Nations observance | 2021 |
| 25th November | Thursday | International Day for the Elimination of Violence against Women | United Nations observance | 2021 |
| 25th November | Thursday | Thanksgiving Day | Federal Holiday | 2021 |
| 26th November | Friday | State Holiday | State holiday | 2021 |
| 26th November | Friday | Lincoln Birthday/Lincoln Day | State holiday | 2021 |
| 26th November | Friday | Day After Thanksgiving | State holiday | 2021 |
| 26th November | Friday | Family Day | State holiday | 2021 |
| 26th November | Friday | Acadian Day | State holiday | 2021 |
| 26th November | Friday | Black Friday | Observance | 2021 |
| 26th November | Friday | American Indian Heritage Day | State holiday | 2021 |
| 28th November | Sunday | First Sunday of Advent | Christian | 2021 |
| 29th November | Monday | Chanukah/Hanukkah (first day) | Jewish holiday | 2021 |
| 29th November | Monday | International Day of Solidarity with the Palestinian People | United Nations observance | 2021 |
| 29th November | Monday | Cyber Monday | Observance | 2021 |
| 1st December | Wednesday | World AIDS Day | United Nations observance | 2021 |
| 1st December | Wednesday | Rosa Parks Day | Local observance | 2021 |
| 2nd December | Thursday | International Day for the Abolition of Slavery | United Nations observance | 2021 |
| 3rd December | Friday | International Day of Persons with Disabilities | United Nations observance | 2021 |
| 5th December | Sunday | International Volunteer Day for Economic and Social Development | United Nations observance | 2021 |
| 5th December | Sunday | World Soil Day | United Nations observance | 2021 |
| 6th December | Monday | Last Day of Chanukah | Jewish holiday | 2021 |
| 6th December | Monday | St Nicholas Day | Observance | 2021 |
| 7th December | Tuesday | International Civil Aviation Day | United Nations observance | 2021 |
| 7th December | Tuesday | Pearl Harbor Remembrance Day | Observance | 2021 |
| 8th December | Wednesday | Feast of the Immaculate Conception | Christian | 2021 |
| 9th December | Thursday | International Anti-Corruption Day | United Nations observance | 2021 |
| 9th December | Thursday | World Genocide Commemoration Day | United Nations observance | 2021 |
| 10th December | Friday | Human Rights Day | United Nations observance | 2021 |
| 11th December | Saturday | International Mountain Day | United Nations observance | 2021 |
| 12th December | Sunday | Feast of Our Lady of Guadalupe | Christian | 2021 |
| 13th December | Monday | National Guard Birthday | Observance | 2021 |
| 15th December | Wednesday | Bill of Rights Day | Observance | 2021 |
| 17th December | Friday | Pan American Aviation Day | Observance | 2021 |
| 17th December | Friday | Wright Brothers Day | Observance | 2021 |
| 18th December | Saturday | International Migrants Day | United Nations observance | 2021 |
| 18th December | Saturday | Arabic Language Day | United Nations observance | 2021 |
| 20th December | Monday | International Human Solidarity Day | United Nations observance | 2021 |
| 21st December | Tuesday | December Solstice | Season | 2021 |
| 24th December | Friday | Christmas Day observed | Federal Holiday | 2021 |
| 24th December | Friday | Christmas Eve | Observance, Christian | 2021 |
| 24th December | Friday | Christmas Eve | State holiday | 2021 |
| 25th December | Saturday | Christmas Day | Federal Holiday | 2021 |
| 26th December | Sunday | Kwanzaa (first day) | Observance | 2021 |
| 26th December | Sunday | Day After Christmas Day | State holiday | 2021 |
| 31st December | Friday | New Year Day observed | Federal Holiday | 2021 |
| 31st December | Friday | New Year Eve | State holiday | 2021 |
| 31st December | Friday | New Year Eve | Observance | 2021 |
