December 2021 Holidays & Observances Worldwide
There is a total of 1081 public holidays and observances in December of 2021 for over 230 countries and 3300 locations around the world. In the table below, you will find the details of the holidays & observances along with when and where they are observed.
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| Date | Holiday | Location |
|---|---|---|
| Wednesday, December 1, 2021 | Day off for Commemoration Day | United Arab Emirates |
| Wednesday, December 1, 2021 | Republic Day | Central African Republic |
| Wednesday, December 1, 2021 | Day of Abolition of the Army | Costa Rica |
| Wednesday, December 1, 2021 | Hanukkah (Day 3) | Israel |
| Wednesday, December 1, 2021 | Independence Day | Iceland |
| Wednesday, December 1, 2021 | Day of the First President of the Republic of Kazakhstan | Kazakhstan |
| Wednesday, December 1, 2021 | Restoration of Independence | Portugal |
| Wednesday, December 1, 2021 | National Day | Romania |
| Wednesday, December 1, 2021 | Freedom and Democracy Day | Chad |
| Wednesday, December 1, 2021 | World AIDS Day | United States |
| Wednesday, December 1, 2021 | Rosa Parks Day | United States |
| Thursday, December 2, 2021 | National Day | United Arab Emirates |
| Thursday, December 2, 2021 | Hanukkah (Day 4) | Israel |
| Thursday, December 2, 2021 | National Day | Laos |
| Thursday, December 2, 2021 | International Day for the Abolition of Slavery | United States |
| Friday, December 3, 2021 | National Day Holiday | United Arab Emirates |
| Friday, December 3, 2021 | Day of Navarre | Spain |
| Friday, December 3, 2021 | Farmer's Day | Ghana |
| Friday, December 3, 2021 | Hanukkah (Day 5) | Israel |
| Friday, December 3, 2021 | Gospel Day | Marshall Islands |
| Friday, December 3, 2021 | International Day of Disabled Persons | Nepal |
| Friday, December 3, 2021 | International Day of Persons with Disabilities | United States |
| Saturday, December 4, 2021 | Hanukkah (Day 6) / Rosh Chodesh Tevet | Israel |
| Saturday, December 4, 2021 | Anniversary of the Coronation of King Tupou I | Tonga |
| Saturday, December 4, 2021 | International Day of Banks | United States |
| Sunday, December 5, 2021 | Second Advent Sunday | Germany |
| Sunday, December 5, 2021 | Hanukkah (Day 7) | Israel |
| Sunday, December 5, 2021 | Cayman Thanksgiving | Cayman Islands |
| Sunday, December 5, 2021 | St Nicholas' Eve/Sinterklaas | Netherlands |
| Sunday, December 5, 2021 | Second Advent Sunday | Norway |
| Sunday, December 5, 2021 | Second Advent Sunday | Sweden |
| Sunday, December 5, 2021 | King Bhumibol's Birthday | Thailand |
| Sunday, December 5, 2021 | International Volunteer Day for Economic and Social Development | United States |
| Sunday, December 5, 2021 | World Soil Day | United States |
| Monday, December 6, 2021 | Last day of Hanukkah | Australia |
| Monday, December 6, 2021 | St. Nicholas Day | Belgium |
| Monday, December 6, 2021 | Last day of Hanukkah | Canada |
| Monday, December 6, 2021 | Saint Nicholas Day | Germany |
| Monday, December 6, 2021 | Foundation of Quito | Ecuador |
| Monday, December 6, 2021 | Constitution Day | Spain |
| Monday, December 6, 2021 | Independence Day | Finland |
| Monday, December 6, 2021 | Saint Nicholas Day | Hungary |
| Monday, December 6, 2021 | Hanukkah (Day 8) | Israel |
| Monday, December 6, 2021 | Last day of Hanukkah | India |
| Monday, December 6, 2021 | St Nicholas' Day | Netherlands |
| Monday, December 6, 2021 | King Bhumibol's Birthday observed | Thailand |
| Monday, December 6, 2021 | Day off for Anniversary of the Coronation of King Tupou I | Tonga |
| Monday, December 6, 2021 | Army Day | Ukraine |
| Monday, December 6, 2021 | Last day of Hanukkah | United Kingdom |
| Monday, December 6, 2021 | Last Day of Chanukah | United States |
| Monday, December 6, 2021 | St Nicholas Day | United States |
| Tuesday, December 7, 2021 | Spitak Remembrance Day | Armenia |
| Tuesday, December 7, 2021 | Eve of the Feast of the Immaculate Conception | Colombia |
| Tuesday, December 7, 2021 | The Feast of St. Ambrose (Milan) | Italy |
| Tuesday, December 7, 2021 | Western Province Day | Solomon Islands |
| Tuesday, December 7, 2021 | Day of Remembrance | East Timor |
| Tuesday, December 7, 2021 | International Civil Aviation Day | United States |
| Tuesday, December 7, 2021 | Pearl Harbor Remembrance Day | United States |
| Tuesday, December 7, 2021 | Pearl Harbor Remembrance Day | United States |
| Tuesday, December 7, 2021 | Pearl Harbor Remembrance Day | United States |
| Tuesday, December 7, 2021 | Delaware Day | United States |
| Wednesday, December 8, 2021 | Feast of the Immaculate Conception | Andorra |
| Wednesday, December 8, 2021 | National Youth Day | Albania |
| Wednesday, December 8, 2021 | Immaculate Conception | Argentina |
| Wednesday, December 8, 2021 | Immaculate Conception | Austria |
| Wednesday, December 8, 2021 | Feast of the Immaculate Conception | Australia |
| Wednesday, December 8, 2021 | Feast of the Immaculate Conception | Canada |
| Wednesday, December 8, 2021 | Immaculate Conception | Switzerland |
| Wednesday, December 8, 2021 | Inmaculate Conception Day | Chile |
| Wednesday, December 8, 2021 | Feast of the Immaculate Conception | Colombia |
| Wednesday, December 8, 2021 | Feast of the Immaculate Conception | Costa Rica |
| Wednesday, December 8, 2021 | Feast of the Immaculate Conception | Germany |
| Wednesday, December 8, 2021 | Immaculate Conception | Spain |
| Wednesday, December 8, 2021 | Battle Day | Falkland Islands |
| Wednesday, December 8, 2021 | Feast of the Immaculate Conception | Equatorial Guinea |
| Wednesday, December 8, 2021 | Santa Marian Kamalen Day | Guam |
| Wednesday, December 8, 2021 | Feast of the Immaculate Conception | Italy |
| Wednesday, December 8, 2021 | Feast of the Immaculate Conception | Liechtenstein |
| Wednesday, December 8, 2021 | Feast of the Immaculate Conception | Monaco |
| Wednesday, December 8, 2021 | Saint Kliment Ohridski's Day | North Macedonia |
| Wednesday, December 8, 2021 | Feast of the Immaculate Conception | Macau |
| Wednesday, December 8, 2021 | Constitution Day | Northern Mariana Islands |
| Wednesday, December 8, 2021 | Feast of the Immaculate Conception | Malta |
| Wednesday, December 8, 2021 | Feast of the Immaculate Conception | Mexico |
| Wednesday, December 8, 2021 | Feast of the Immaculate Conception | Nicaragua |
| Wednesday, December 8, 2021 | Mother's Day | Panama |
| Wednesday, December 8, 2021 | Feast of the Immaculate Conception | Peru |
| Wednesday, December 8, 2021 | Feast of the Immaculate Conception | Philippines |
| Wednesday, December 8, 2021 | Feast of the Immaculate Conception | Portugal |
| Wednesday, December 8, 2021 | Virgin of Caacupé Day | Paraguay |
| Wednesday, December 8, 2021 | Constitution Day | Romania |
| Wednesday, December 8, 2021 | Immaculate Conception | Seychelles |
| Wednesday, December 8, 2021 | Feast of the Immaculate Conception | San Marino |
| Wednesday, December 8, 2021 | Day of Our Lady of Immaculate Conception | East Timor |
| Wednesday, December 8, 2021 | Feast of the Immaculate Conception | United Kingdom |
| Wednesday, December 8, 2021 | Feast of the Immaculate Conception | United States |
| Wednesday, December 8, 2021 | Constitution Day | Uzbekistan |
| Wednesday, December 8, 2021 | Feast of the Immaculate Conception | Vatican City (Holy See) |
| Wednesday, December 8, 2021 | Feast of the Immaculate Conception | Venezuela |
| Thursday, December 9, 2021 | V.C. Bird Day | Antigua and Barbuda |
| Thursday, December 9, 2021 | Genocide Condemnation and Prevention Day | Armenia |
| Thursday, December 9, 2021 | Republic Day | Tanzania |
| Thursday, December 9, 2021 | International Anti-Corruption Day | United States |
| Thursday, December 9, 2021 | World Genocide Commemoration Day | United States |
| Friday, December 10, 2021 | Human Rights Day | Equatorial Guinea |
| Friday, December 10, 2021 | Anniversary of Victory over ISIS | Iraq |
| Friday, December 10, 2021 | Human Rights and Peace Day | Kiribati |
| Friday, December 10, 2021 | International Human Rights Day | Moldova |
| Friday, December 10, 2021 | Human Rights Day | Mongolia |
| Friday, December 10, 2021 | Day of the Namibian Women and International Human Rights Day | Namibia |
| Friday, December 10, 2021 | International Human Rights Day | Turks and Caicos Islands |
| Friday, December 10, 2021 | Constitution Day | Thailand |
| Friday, December 10, 2021 | Human Rights Day | United States |
| Friday, December 10, 2021 | Wyoming Day | United States |
| Saturday, December 11, 2021 | Proclamation of Independence Day | Burkina Faso |
| Saturday, December 11, 2021 | Anniversary of the Statute of Westminster | Canada |
| Saturday, December 11, 2021 | Extra Work Day | Hungary |
| Saturday, December 11, 2021 | Birthday of the Sultan of Selangor | Malaysia |
| Saturday, December 11, 2021 | International Mountain Day | United States |
| Sunday, December 12, 2021 | Third Advent Sunday | Germany |
| Sunday, December 12, 2021 | Jamhuri Day | Kenya |
| Sunday, December 12, 2021 | Day of the Virgin of Guadalupe | Mexico |
| Sunday, December 12, 2021 | Third Advent Sunday | Norway |
| Sunday, December 12, 2021 | Third Advent Sunday | Sweden |
| Sunday, December 12, 2021 | Day of Neutrality | Turkmenistan |
| Sunday, December 12, 2021 | International Day of Neutrality | United States |
| Sunday, December 12, 2021 | Universal Health Coverage Day | United States |
| Sunday, December 12, 2021 | Feast of Our Lady of Guadalupe | United States |
| Monday, December 13, 2021 | Jamhuri Day observed | Kenya |
| Monday, December 13, 2021 | National Day | Saint Lucia |
| Monday, December 13, 2021 | Republic Day | Malta |
| Monday, December 13, 2021 | Green Monday | United States |
| Monday, December 13, 2021 | National Guard Birthday | United States |
| Tuesday, December 14, 2021 | Asarah B'Tevet (Tenth of Tevet) | Israel |
| Tuesday, December 14, 2021 | Day of Oil and Gas Industry and Geology Workers | Turkmenistan |
| Tuesday, December 14, 2021 | Asarah B'Tevet | United States |
| Tuesday, December 14, 2021 | Holiday for Feast of the Immaculate Conception | Venezuela |
| Wednesday, December 15, 2021 | Homecoming Day (only Alderney) | Guernsey |
| Wednesday, December 15, 2021 | Bill of Rights Day | United States |
| Thursday, December 16, 2021 | Victory Day | Bangladesh |
| Thursday, December 16, 2021 | National Day | Bahrain |
| Thursday, December 16, 2021 | Independence Day | Kazakhstan |
| Thursday, December 16, 2021 | Day of Reconciliation | South Africa |
| Friday, December 17, 2021 | National Day Holiday | Bahrain |
| Friday, December 17, 2021 | National Day | Bhutan |
| Friday, December 17, 2021 | Independence Day Holiday | Kazakhstan |
| Friday, December 17, 2021 | Pan American Aviation Day | United States |
| Friday, December 17, 2021 | Wright Brothers Day | United States |
| Saturday, December 18, 2021 | Unduvap Full Moon Poya Day | Sri Lanka |
| Saturday, December 18, 2021 | Nigerien Republic Day | Niger |
| Saturday, December 18, 2021 | National Day | Qatar |
| Saturday, December 18, 2021 | International Migrants Day | United States |
| Saturday, December 18, 2021 | Arabic Language Day | United States |
| Saturday, December 18, 2021 | Super Saturday | United States |
| Sunday, December 19, 2021 | National Heroes and Heroines Day | Anguilla |
| Sunday, December 19, 2021 | Second Round Presidential Elections | Chile |
| Sunday, December 19, 2021 | Fourth Advent Sunday | Germany |
| Sunday, December 19, 2021 | Remembrance Day for Roma and Sinti killed by Genocide | Germany |
| Sunday, December 19, 2021 | Fourth Advent Sunday | Norway |
| Sunday, December 19, 2021 | Udhauli Parva | Nepal |
| Sunday, December 19, 2021 | Fourth Advent Sunday | Sweden |
| Sunday, December 19, 2021 | St. Nicholas Day | Ukraine |
| Monday, December 20, 2021 | Macau S.A.R. Establishment Day | Macau |
| Monday, December 20, 2021 | National Day of Mourning | Panama |
| Monday, December 20, 2021 | Abolition of Slavery | Reunion |
| Monday, December 20, 2021 | International Human Solidarity Day | United States |
| Tuesday, December 21, 2021 | December Solstice | Andorra |
| Tuesday, December 21, 2021 | December Solstice | United Arab Emirates |
| Tuesday, December 21, 2021 | December Solstice | Afghanistan |
| Tuesday, December 21, 2021 | December Solstice | Antigua and Barbuda |
| Tuesday, December 21, 2021 | December Solstice | Anguilla |
| Tuesday, December 21, 2021 | December Solstice | Albania |
| Tuesday, December 21, 2021 | December Solstice | Armenia |
| Tuesday, December 21, 2021 | December Solstice | Angola |
| Tuesday, December 21, 2021 | December Solstice | Argentina |
| Tuesday, December 21, 2021 | December Solstice | American Samoa |
| Tuesday, December 21, 2021 | December Solstice | Austria |
| Tuesday, December 21, 2021 | December Solstice | Aruba |
| Tuesday, December 21, 2021 | December Solstice | Azerbaijan |
| Tuesday, December 21, 2021 | December Solstice | Bosnia and Herzegovina |
| Tuesday, December 21, 2021 | December Solstice | Barbados |
| Tuesday, December 21, 2021 | December Solstice | Bangladesh |
| Tuesday, December 21, 2021 | December Solstice | Belgium |
| Tuesday, December 21, 2021 | December Solstice | Burkina Faso |
| Tuesday, December 21, 2021 | December Solstice | Bulgaria |
| Tuesday, December 21, 2021 | December Solstice | Bahrain |
| Tuesday, December 21, 2021 | December Solstice | Burundi |
| Tuesday, December 21, 2021 | December Solstice | Benin |
| Tuesday, December 21, 2021 | December Solstice | St. Barts |
| Tuesday, December 21, 2021 | December Solstice | Bermuda |
| Tuesday, December 21, 2021 | December Solstice | Brunei |
| Tuesday, December 21, 2021 | December Solstice | Bolivia |
| Tuesday, December 21, 2021 | December Solstice | Brazil |
| Tuesday, December 21, 2021 | December Solstice | The Bahamas |
| Tuesday, December 21, 2021 | December Solstice | Bhutan |
| Tuesday, December 21, 2021 | December Solstice | Botswana |
| Tuesday, December 21, 2021 | December Solstice | Belarus |
| Tuesday, December 21, 2021 | December Solstice | Belize |
| Tuesday, December 21, 2021 | December Solstice | Canada |
| Tuesday, December 21, 2021 | December Solstice | Congo Democratic Republic |
| Tuesday, December 21, 2021 | December Solstice | Central African Republic |
| Tuesday, December 21, 2021 | December Solstice | Congo |
| Tuesday, December 21, 2021 | December Solstice | Switzerland |
| Tuesday, December 21, 2021 | December Solstice | Cote d'Ivoire |
| Tuesday, December 21, 2021 | December Solstice | Cook Islands |
| Tuesday, December 21, 2021 | December Solstice | Chile |
| Tuesday, December 21, 2021 | December Solstice | Cameroon |
| Tuesday, December 21, 2021 | December Solstice | China |
| Tuesday, December 21, 2021 | December Solstice | Colombia |
| Tuesday, December 21, 2021 | December Solstice | Costa Rica |
| Tuesday, December 21, 2021 | December Solstice | Cuba |
| Tuesday, December 21, 2021 | December Solstice | Cabo Verde |
| Tuesday, December 21, 2021 | December Solstice | Curaçao |
| Tuesday, December 21, 2021 | December Solstice | Cyprus |
| Tuesday, December 21, 2021 | December Solstice | Czechia |
| Tuesday, December 21, 2021 | December Solstice | Germany |
| Tuesday, December 21, 2021 | December Solstice | Djibouti |
| Tuesday, December 21, 2021 | December Solstice | Denmark |
| Tuesday, December 21, 2021 | December Solstice | Dominica |
| Tuesday, December 21, 2021 | December Solstice | Dominican Republic |
| Tuesday, December 21, 2021 | December Solstice | Algeria |
| Tuesday, December 21, 2021 | December Solstice | Ecuador |
| Tuesday, December 21, 2021 | December Solstice | Estonia |
| Tuesday, December 21, 2021 | December Solstice | Egypt |
| Tuesday, December 21, 2021 | December Solstice | Eritrea |
| Tuesday, December 21, 2021 | December Solstice | Spain |
| Tuesday, December 21, 2021 | December Solstice | Ethiopia |
| Tuesday, December 21, 2021 | December Solstice | Finland |
| Tuesday, December 21, 2021 | December Solstice | Falkland Islands |
| Tuesday, December 21, 2021 | December Solstice | Faroe Islands |
| Tuesday, December 21, 2021 | December Solstice | France |
| Tuesday, December 21, 2021 | December Solstice | Gabon |
| Tuesday, December 21, 2021 | December Solstice | Grenada |
| Tuesday, December 21, 2021 | December Solstice | Georgia |
| Tuesday, December 21, 2021 | December Solstice | French Guiana |
| Tuesday, December 21, 2021 | December Solstice | Guernsey |
| Tuesday, December 21, 2021 | December Solstice | Ghana |
| Tuesday, December 21, 2021 | December Solstice | Gibraltar |
| Tuesday, December 21, 2021 | December Solstice | Greenland |
| Tuesday, December 21, 2021 | December Solstice | Gambia |
| Tuesday, December 21, 2021 | December Solstice | Guinea |
| Tuesday, December 21, 2021 | December Solstice | Equatorial Guinea |
| Tuesday, December 21, 2021 | December Solstice | Greece |
| Tuesday, December 21, 2021 | December Solstice | Guatemala |
| Tuesday, December 21, 2021 | December Solstice | Guinea-Bissau |
| Tuesday, December 21, 2021 | December Solstice | Guyana |
| Tuesday, December 21, 2021 | December Solstice | Hong Kong |
| Tuesday, December 21, 2021 | December Solstice | Honduras |
| Tuesday, December 21, 2021 | December Solstice | Croatia |
| Tuesday, December 21, 2021 | December Solstice | Haiti |
| Tuesday, December 21, 2021 | December Solstice | Hungary |
| Tuesday, December 21, 2021 | December Solstice | Indonesia |
| Tuesday, December 21, 2021 | December Solstice | Ireland |
| Tuesday, December 21, 2021 | December Solstice | Israel |
| Tuesday, December 21, 2021 | December Solstice | Isle of Man |
| Tuesday, December 21, 2021 | December Solstice | India |
| Tuesday, December 21, 2021 | December Solstice | Iraq |
| Tuesday, December 21, 2021 | December Solstice | Iran |
| Tuesday, December 21, 2021 | December Solstice | Iceland |
| Tuesday, December 21, 2021 | December Solstice | Italy |
| Tuesday, December 21, 2021 | December Solstice | Jersey |
| Tuesday, December 21, 2021 | December Solstice | Jamaica |
| Tuesday, December 21, 2021 | December Solstice | Jordan |
| Tuesday, December 21, 2021 | December Solstice | Kenya |
| Tuesday, December 21, 2021 | December Solstice | Kyrgyzstan |
| Tuesday, December 21, 2021 | December Solstice | Cambodia |
| Tuesday, December 21, 2021 | December Solstice | Comoros |
| Tuesday, December 21, 2021 | December Solstice | Saint Kitts and Nevis |
| Tuesday, December 21, 2021 | December Solstice | Kuwait |
| Tuesday, December 21, 2021 | December Solstice | Cayman Islands |
| Tuesday, December 21, 2021 | December Solstice | Kazakhstan |
| Tuesday, December 21, 2021 | December Solstice | Laos |
| Tuesday, December 21, 2021 | December Solstice | Lebanon |
| Tuesday, December 21, 2021 | December Solstice | Saint Lucia |
| Tuesday, December 21, 2021 | December Solstice | Liechtenstein |
| Tuesday, December 21, 2021 | December Solstice | Sri Lanka |
| Tuesday, December 21, 2021 | December Solstice | Liberia |
| Tuesday, December 21, 2021 | December Solstice | Lesotho |
| Tuesday, December 21, 2021 | December Solstice | Lithuania |
| Tuesday, December 21, 2021 | December Solstice | Luxembourg |
| Tuesday, December 21, 2021 | December Solstice | Latvia |
| Tuesday, December 21, 2021 | December Solstice | Libya |
| Tuesday, December 21, 2021 | December Solstice | Morocco |
| Tuesday, December 21, 2021 | December Solstice | Monaco |
| Tuesday, December 21, 2021 | December Solstice | Moldova |
| Tuesday, December 21, 2021 | December Solstice | Montenegro |
| Tuesday, December 21, 2021 | December Solstice | Saint Martin |
| Tuesday, December 21, 2021 | December Solstice | Madagascar |
| Tuesday, December 21, 2021 | Turkish Language Day (Turkish community) | North Macedonia |
| Tuesday, December 21, 2021 | December Solstice | North Macedonia |
| Tuesday, December 21, 2021 | December Solstice | Mali |
| Tuesday, December 21, 2021 | December Solstice | Myanmar |
| Tuesday, December 21, 2021 | December Solstice | Mongolia |
| Tuesday, December 21, 2021 | December Solstice | Macau |
| Tuesday, December 21, 2021 | Winter Solstice | Macau |
| Tuesday, December 21, 2021 | December Solstice | Martinique |
| Tuesday, December 21, 2021 | December Solstice | Mauritania |
| Tuesday, December 21, 2021 | December Solstice | Montserrat |
| Tuesday, December 21, 2021 | December Solstice | Mauritius |
| Tuesday, December 21, 2021 | December Solstice | Maldives |
| Tuesday, December 21, 2021 | December Solstice | Malawi |
| Tuesday, December 21, 2021 | December Solstice | Mexico |
| Tuesday, December 21, 2021 | December Solstice | Malaysia |
| Tuesday, December 21, 2021 | December Solstice | Mozambique |
| Tuesday, December 21, 2021 | December Solstice | Namibia |
| Tuesday, December 21, 2021 | December Solstice | Niger |
| Tuesday, December 21, 2021 | December Solstice | Nigeria |
| Tuesday, December 21, 2021 | December Solstice | Nicaragua |
| Tuesday, December 21, 2021 | December Solstice | Netherlands |
| Tuesday, December 21, 2021 | December Solstice | Norway |
| Tuesday, December 21, 2021 | December Solstice | Nepal |
| Tuesday, December 21, 2021 | December Solstice | Oman |
| Tuesday, December 21, 2021 | December Solstice | Panama |
| Tuesday, December 21, 2021 | December Solstice | Peru |
| Tuesday, December 21, 2021 | December Solstice | French Polynesia |
| Tuesday, December 21, 2021 | December Solstice | Philippines |
| Tuesday, December 21, 2021 | December Solstice | Pakistan |
| Tuesday, December 21, 2021 | December Solstice | Poland |
| Tuesday, December 21, 2021 | December Solstice | Saint Pierre and Miquelon |
| Tuesday, December 21, 2021 | December Solstice | Puerto Rico |
| Tuesday, December 21, 2021 | December Solstice | Portugal |
| Tuesday, December 21, 2021 | December Solstice | Paraguay |
| Tuesday, December 21, 2021 | December Solstice | Qatar |
| Tuesday, December 21, 2021 | December Solstice | Reunion |
| Tuesday, December 21, 2021 | December Solstice | Romania |
| Tuesday, December 21, 2021 | December Solstice | Serbia |
| Tuesday, December 21, 2021 | December Solstice | Russia |
| Tuesday, December 21, 2021 | December Solstice | Rwanda |
| Tuesday, December 21, 2021 | December Solstice | Saudi Arabia |
| Tuesday, December 21, 2021 | December Solstice | Seychelles |
| Tuesday, December 21, 2021 | December Solstice | Sudan |
| Tuesday, December 21, 2021 | December Solstice | Sweden |
| Tuesday, December 21, 2021 | December Solstice | Singapore |
| Tuesday, December 21, 2021 | December Solstice | Saint Helena |
| Tuesday, December 21, 2021 | December Solstice | Slovenia |
| Tuesday, December 21, 2021 | December Solstice | Slovakia |
| Tuesday, December 21, 2021 | December Solstice | Sierra Leone |
| Tuesday, December 21, 2021 | December Solstice | San Marino |
| Tuesday, December 21, 2021 | December Solstice | Senegal |
| Tuesday, December 21, 2021 | December Solstice | Somalia |
| Tuesday, December 21, 2021 | December Solstice | Suriname |
| Tuesday, December 21, 2021 | December Solstice | South Sudan |
| Tuesday, December 21, 2021 | São Tomé Day | Sao Tome and Principe |
| Tuesday, December 21, 2021 | December Solstice | Sao Tome and Principe |
| Tuesday, December 21, 2021 | December Solstice | El Salvador |
| Tuesday, December 21, 2021 | December Solstice | Sint Maarten |
| Tuesday, December 21, 2021 | December Solstice | Syria |
| Tuesday, December 21, 2021 | December Solstice | Eswatini |
| Tuesday, December 21, 2021 | December Solstice | Turks and Caicos Islands |
| Tuesday, December 21, 2021 | December Solstice | Chad |
| Tuesday, December 21, 2021 | December Solstice | Togo |
| Tuesday, December 21, 2021 | December Solstice | Thailand |
| Tuesday, December 21, 2021 | December Solstice | Tajikistan |
| Tuesday, December 21, 2021 | Niyazov Day | Turkmenistan |
| Tuesday, December 21, 2021 | December Solstice | Turkmenistan |
| Tuesday, December 21, 2021 | December Solstice | Tunisia |
| Tuesday, December 21, 2021 | December Solstice | Turkey |
| Tuesday, December 21, 2021 | December Solstice | Trinidad and Tobago |
| Tuesday, December 21, 2021 | December Solstice | Taiwan |
| Tuesday, December 21, 2021 | Dōngzhì Festival | Taiwan |
| Tuesday, December 21, 2021 | December Solstice | Tanzania |
| Tuesday, December 21, 2021 | December Solstice | Ukraine |
| Tuesday, December 21, 2021 | December Solstice | Uganda |
| Tuesday, December 21, 2021 | December Solstice | United Kingdom |
| Tuesday, December 21, 2021 | December Solstice | United States |
| Tuesday, December 21, 2021 | December Solstice | Uruguay |
| Tuesday, December 21, 2021 | December Solstice | Uzbekistan |
| Tuesday, December 21, 2021 | December Solstice | Vatican City (Holy See) |
| Tuesday, December 21, 2021 | December Solstice | Saint Vincent and the Grenadines |
| Tuesday, December 21, 2021 | December Solstice | Venezuela |
| Tuesday, December 21, 2021 | December Solstice | British Virgin Islands |
| Tuesday, December 21, 2021 | December Solstice | US Virgin Islands |
| Tuesday, December 21, 2021 | December Solstice | Vietnam |
| Tuesday, December 21, 2021 | December Solstice | Kosovo |
| Tuesday, December 21, 2021 | December Solstice | Yemen |
| Tuesday, December 21, 2021 | December Solstice | Mayotte |
| Tuesday, December 21, 2021 | December Solstice | South Africa |
| Tuesday, December 21, 2021 | December Solstice | Zambia |
| Tuesday, December 21, 2021 | December Solstice | Zimbabwe |
| Wednesday, December 22, 2021 | December Solstice | Australia |
| Wednesday, December 22, 2021 | December Solstice | Fiji |
| Wednesday, December 22, 2021 | December Solstice | Micronesia |
| Wednesday, December 22, 2021 | December Solstice | Guam |
| Wednesday, December 22, 2021 | December Solstice | Japan |
| Wednesday, December 22, 2021 | December Solstice | Kiribati |
| Wednesday, December 22, 2021 | December Solstice | North Korea |
| Wednesday, December 22, 2021 | December Solstice | South Korea |
| Wednesday, December 22, 2021 | December Solstice | Marshall Islands |
| Wednesday, December 22, 2021 | December Solstice | Northern Mariana Islands |
| Wednesday, December 22, 2021 | December Solstice | New Caledonia |
| Wednesday, December 22, 2021 | December Solstice | Norfolk Island |
| Wednesday, December 22, 2021 | Sambisa Memorial Day | Nigeria |
| Wednesday, December 22, 2021 | December Solstice | Nauru |
| Wednesday, December 22, 2021 | December Solstice | New Zealand |
| Wednesday, December 22, 2021 | December Solstice | Papua New Guinea |
| Wednesday, December 22, 2021 | December Solstice | Palau |
| Wednesday, December 22, 2021 | December Solstice | Solomon Islands |
| Wednesday, December 22, 2021 | Incwala Day | Eswatini |
| Wednesday, December 22, 2021 | December Solstice | East Timor |
| Wednesday, December 22, 2021 | December Solstice | Tonga |
| Wednesday, December 22, 2021 | December Solstice | Tuvalu |
| Wednesday, December 22, 2021 | December Solstice | Vanuatu |
| Wednesday, December 22, 2021 | December Solstice | Wallis and Futuna |
| Wednesday, December 22, 2021 | December Solstice | Samoa |
| Wednesday, December 22, 2021 | Unity Day | Zimbabwe |
| Thursday, December 23, 2021 | Washington's Birthday | United States |
| Thursday, December 23, 2021 | Christmas Holiday | United States |
| Friday, December 24, 2021 | Christmas Eve | Andorra |
| Friday, December 24, 2021 | Christmas Eve | Albania |
| Friday, December 24, 2021 | Christmas Eve | Austria |
| Friday, December 24, 2021 | Christmas Eve | Australia |
| Friday, December 24, 2021 | Christmas Eve | Australia |
| Friday, December 24, 2021 | Christmas Eve | Australia |
| Friday, December 24, 2021 | Christmas Eve | Australia |
| Friday, December 24, 2021 | Christmas Eve | Bosnia and Herzegovina |
| Friday, December 24, 2021 | Christmas Eve | Barbados |
| Friday, December 24, 2021 | Christmas Eve | Bangladesh |
| Friday, December 24, 2021 | Christmas Eve | Belgium |
| Friday, December 24, 2021 | Christmas Eve | Bulgaria |
| Friday, December 24, 2021 | Christmas Eve | Bermuda |
| Friday, December 24, 2021 | Christmas Eve (from 2pm) | Brazil |
| Friday, December 24, 2021 | Day off for Christmas Day | The Bahamas |
| Friday, December 24, 2021 | Christmas Eve | The Bahamas |
| Friday, December 24, 2021 | Christmas Eve | Canada |
| Friday, December 24, 2021 | Christmas Eve | Canada |
| Friday, December 24, 2021 | Christmas Eve | Congo Democratic Republic |
| Friday, December 24, 2021 | Christmas Eve | Switzerland |
| Friday, December 24, 2021 | Christmas Eve | Colombia |
| Friday, December 24, 2021 | Christmas Eve | Cyprus |
| Friday, December 24, 2021 | Christmas Eve | Czechia |
| Friday, December 24, 2021 | Christmas Eve | Germany |
| Friday, December 24, 2021 | Christmas Eve | Denmark |
| Friday, December 24, 2021 | Christmas Eve | Denmark |
| Friday, December 24, 2021 | Bank Holiday | Denmark |
| Friday, December 24, 2021 | Christmas Eve | Dominican Republic |
| Friday, December 24, 2021 | Day off for Christmas Day | Ecuador |
| Friday, December 24, 2021 | Christmas Eve | Estonia |
| Friday, December 24, 2021 | Christmas Eve | Spain |
| Friday, December 24, 2021 | Christmas Eve | Finland |
| Friday, December 24, 2021 | Christmas Day observed | Micronesia |
| Friday, December 24, 2021 | Yap Constitution Day | Micronesia |
| Friday, December 24, 2021 | Christmas Eve | Faroe Islands |
| Friday, December 24, 2021 | Christmas Eve | France |
| Friday, December 24, 2021 | Christmas Eve | Ghana |
| Friday, December 24, 2021 | Christmas Eve | Gibraltar |
| Friday, December 24, 2021 | Christmas Eve | Greenland |
| Friday, December 24, 2021 | Christmas Eve | Guadeloupe |
| Friday, December 24, 2021 | Christmas Eve | Equatorial Guinea |
| Friday, December 24, 2021 | Christmas Eve | Guatemala |
| Friday, December 24, 2021 | Public Sector Holiday | Guatemala |
| Friday, December 24, 2021 | Christmas Day observed | Guam |
| Friday, December 24, 2021 | Christmas Eve | Haiti |
| Friday, December 24, 2021 | Christmas Eve | Hungary |
| Friday, December 24, 2021 | Christmas Eve | Indonesia |
| Friday, December 24, 2021 | Christmas Eve | Ireland |
| Friday, December 24, 2021 | Catholic/Protestant Christmas Eve | Israel |
| Friday, December 24, 2021 | Christmas Eve | India |
| Friday, December 24, 2021 | Christmas Eve | Iceland |
| Friday, December 24, 2021 | Christmas Eve | Jamaica |
| Friday, December 24, 2021 | Christmas Eve | Kenya |
| Friday, December 24, 2021 | Day off for Christmas Day | Kiribati |
| Friday, December 24, 2021 | Christmas Eve | South Korea |
| Friday, December 24, 2021 | Christmas Eve | Cayman Islands |
| Friday, December 24, 2021 | Christmas Eve | Liechtenstein |
| Friday, December 24, 2021 | Christmas Eve | Sri Lanka |
| Friday, December 24, 2021 | Christmas Eve | Lithuania |
| Friday, December 24, 2021 | Christmas Eve | Luxembourg |
| Friday, December 24, 2021 | Christmas Eve | Latvia |
| Friday, December 24, 2021 | Independence Day | Libya |
| Friday, December 24, 2021 | Christmas Eve | Monaco |
| Friday, December 24, 2021 | Christmas Eve | Moldova |
| Friday, December 24, 2021 | Christmas Eve | Montenegro |
| Friday, December 24, 2021 | Day off for Christmas Day | Marshall Islands |
| Friday, December 24, 2021 | Christmas Eve | North Macedonia |
| Friday, December 24, 2021 | Christmas Eve | Macau |
| Friday, December 24, 2021 | Day off for Christmas Day | Northern Mariana Islands |
| Friday, December 24, 2021 | Christmas Eve | Malta |
| Friday, December 24, 2021 | Christmas Eve | Malawi |
| Friday, December 24, 2021 | Christmas Eve | Mexico |
| Friday, December 24, 2021 | Christmas Eve | Malaysia |
| Friday, December 24, 2021 | Christmas Eve | Malaysia |
| Friday, December 24, 2021 | Public Sector Holiday | Mozambique |
| Friday, December 24, 2021 | Christmas Eve | Norfolk Island |
| Friday, December 24, 2021 | Christmas Eve | Nigeria |
| Friday, December 24, 2021 | Christmas Eve | Netherlands |
| Friday, December 24, 2021 | Christmas Eve | Norway |
| Friday, December 24, 2021 | Christmas Eve | New Zealand |
| Friday, December 24, 2021 | Christmas Eve | Panama |
| Friday, December 24, 2021 | Christmas Eve | Peru |
| Friday, December 24, 2021 | Public Sector Holiday | Peru |
| Friday, December 24, 2021 | Christmas Eve | Philippines |
| Friday, December 24, 2021 | Christmas Eve | Pakistan |
| Friday, December 24, 2021 | Christmas Eve | Poland |
| Friday, December 24, 2021 | Christmas Eve | Puerto Rico |
| Friday, December 24, 2021 | Christmas Eve | Portugal |
| Friday, December 24, 2021 | Day off for Christmas Day | Palau |
| Friday, December 24, 2021 | Christmas Eve | Paraguay |
| Friday, December 24, 2021 | Public Sector Holiday | Paraguay |
| Friday, December 24, 2021 | Christmas Eve | Romania |
| Friday, December 24, 2021 | Christmas Eve | Sweden |
| Friday, December 24, 2021 | Christmas Eve | Singapore |
| Friday, December 24, 2021 | Christmas Eve | Slovakia |
| Friday, December 24, 2021 | Christmas Eve | San Marino |
| Friday, December 24, 2021 | Christmas Eve | South Sudan |
| Friday, December 24, 2021 | Day off for Christmas Day | Sao Tome and Principe |
| Friday, December 24, 2021 | Christmas Eve | El Salvador |
| Friday, December 24, 2021 | Christmas Eve | Thailand |
| Friday, December 24, 2021 | Christmas Eve | Trinidad and Tobago |
| Friday, December 24, 2021 | Christmas Eve | Tanzania |
| Friday, December 24, 2021 | Christmas Eve | United Kingdom |
| Friday, December 24, 2021 | Christmas Day (substitute) | United States |
| Friday, December 24, 2021 | Christmas Day (substitute) | United States |
| Friday, December 24, 2021 | Christmas Eve | United States |
| Friday, December 24, 2021 | Christmas Eve | United States |
| Friday, December 24, 2021 | Christmas Eve | United States |
| Friday, December 24, 2021 | Christmas Eve | Uruguay |
| Friday, December 24, 2021 | Christmas Eve | Vatican City (Holy See) |
| Friday, December 24, 2021 | Christmas Eve | Venezuela |
| Friday, December 24, 2021 | Christmas Eve | Vietnam |
| Friday, December 24, 2021 | Christmas Eve | South Africa |
| Saturday, December 25, 2021 | Christmas Day | Andorra |
| Saturday, December 25, 2021 | Christmas Day | Antigua and Barbuda |
| Saturday, December 25, 2021 | Christmas Day | Anguilla |
| Saturday, December 25, 2021 | Christmas Day | Albania |
| Saturday, December 25, 2021 | Christmas Day | Angola |
| Saturday, December 25, 2021 | Christmas Day | Argentina |
| Saturday, December 25, 2021 | Christmas Day | American Samoa |
| Saturday, December 25, 2021 | Christmas Day | Austria |
| Saturday, December 25, 2021 | Christmas Day | Australia |
| Saturday, December 25, 2021 | Christmas Day | Australia |
| Saturday, December 25, 2021 | Christmas Day | Aruba |
| Saturday, December 25, 2021 | Christmas Day | Bosnia and Herzegovina |
| Saturday, December 25, 2021 | Christmas Day | Barbados |
| Saturday, December 25, 2021 | Christmas Day | Bangladesh |
| Saturday, December 25, 2021 | Christmas Day | Belgium |
| Saturday, December 25, 2021 | Christmas Day | Burkina Faso |
| Saturday, December 25, 2021 | Christmas Day | Bulgaria |
| Saturday, December 25, 2021 | Christmas Day | Burundi |
| Saturday, December 25, 2021 | Christmas Day | Benin |
| Saturday, December 25, 2021 | Christmas Day | St. Barts |
| Saturday, December 25, 2021 | Christmas Day | Bermuda |
| Saturday, December 25, 2021 | Christmas Day | Brunei |
| Saturday, December 25, 2021 | Christmas Day | Bolivia |
| Saturday, December 25, 2021 | Christmas Day | Brazil |
| Saturday, December 25, 2021 | Christmas Day | The Bahamas |
| Saturday, December 25, 2021 | Christmas Day | Botswana |
| Saturday, December 25, 2021 | Catholic Christmas Day | Belarus |
| Saturday, December 25, 2021 | Christmas Day | Belize |
| Saturday, December 25, 2021 | Christmas Day | Canada |
| Saturday, December 25, 2021 | Christmas Day | Congo Democratic Republic |
| Saturday, December 25, 2021 | Christmas Day | Central African Republic |
| Saturday, December 25, 2021 | Christmas Day | Congo |
| Saturday, December 25, 2021 | Christmas Day | Switzerland |
| Saturday, December 25, 2021 | Christmas Day | Cote d'Ivoire |
| Saturday, December 25, 2021 | Christmas Day | Cook Islands |
| Saturday, December 25, 2021 | Christmas Day | Chile |
| Saturday, December 25, 2021 | Christmas Day | Cameroon |
| Saturday, December 25, 2021 | Christmas Day | China |
| Saturday, December 25, 2021 | Christmas Day | Colombia |
| Saturday, December 25, 2021 | Christmas Day | Costa Rica |
| Saturday, December 25, 2021 | Christmas Day | Cuba |
| Saturday, December 25, 2021 | Christmas Day | Cabo Verde |
| Saturday, December 25, 2021 | Christmas Day | Curaçao |
| Saturday, December 25, 2021 | Christmas Day | Cyprus |
| Saturday, December 25, 2021 | Christmas Day | Czechia |
| Saturday, December 25, 2021 | Christmas Day | Germany |
| Saturday, December 25, 2021 | Christmas Day | Denmark |
| Saturday, December 25, 2021 | Christmas Day | Dominica |
| Saturday, December 25, 2021 | Christmas Day | Dominican Republic |
| Saturday, December 25, 2021 | Christmas Day | Ecuador |
| Saturday, December 25, 2021 | Christmas Day | Estonia |
| Saturday, December 25, 2021 | Christmas Day | Eritrea |
| Saturday, December 25, 2021 | Christmas Day | Spain |
| Saturday, December 25, 2021 | Christmas Day | Finland |
| Saturday, December 25, 2021 | Christmas Day | Fiji |
| Saturday, December 25, 2021 | Christmas Day | Falkland Islands |
| Saturday, December 25, 2021 | Christmas Day | Micronesia |
| Saturday, December 25, 2021 | Christmas Day | Faroe Islands |
| Saturday, December 25, 2021 | Christmas Day | France |
| Saturday, December 25, 2021 | Christmas Day | Gabon |
| Saturday, December 25, 2021 | Christmas Day | Grenada |
| Saturday, December 25, 2021 | Christmas Day | French Guiana |
| Saturday, December 25, 2021 | Christmas Day | Guernsey |
| Saturday, December 25, 2021 | Christmas Day | Ghana |
| Saturday, December 25, 2021 | Christmas Day | Gibraltar |
| Saturday, December 25, 2021 | Christmas Day | Greenland |
| Saturday, December 25, 2021 | Christmas Day | Gambia |
| Saturday, December 25, 2021 | Christmas Day | Guinea |
| Saturday, December 25, 2021 | Christmas Day | Guadeloupe |
| Saturday, December 25, 2021 | Christmas Day | Equatorial Guinea |
| Saturday, December 25, 2021 | Christmas Day | Greece |
| Saturday, December 25, 2021 | Christmas Day | Guatemala |
| Saturday, December 25, 2021 | Christmas Day | Guam |
| Saturday, December 25, 2021 | Christmas Day | Guinea-Bissau |
| Saturday, December 25, 2021 | Christmas Day | Guyana |
| Saturday, December 25, 2021 | Christmas Day | Hong Kong |
| Saturday, December 25, 2021 | Christmas Day | Honduras |
| Saturday, December 25, 2021 | Christmas Day | Croatia |
| Saturday, December 25, 2021 | Christmas Day | Haiti |
| Saturday, December 25, 2021 | Christmas Day | Hungary |
| Saturday, December 25, 2021 | Christmas Day | Indonesia |
| Saturday, December 25, 2021 | Christmas Day | Ireland |
| Saturday, December 25, 2021 | Catholic/Protestant Christmas Day | Israel |
| Saturday, December 25, 2021 | Christmas Day | Isle of Man |
| Saturday, December 25, 2021 | Christmas | India |
| Saturday, December 25, 2021 | Christmas Day | Iraq |
| Saturday, December 25, 2021 | Christmas Day | Iceland |
| Saturday, December 25, 2021 | Christmas Day | Italy |
| Saturday, December 25, 2021 | Christmas Day | Jersey |
| Saturday, December 25, 2021 | Christmas Day | Jamaica |
| Saturday, December 25, 2021 | Christmas Day | Jordan |
| Saturday, December 25, 2021 | Christmas | Japan |
| Saturday, December 25, 2021 | Christmas Day | Kenya |
| Saturday, December 25, 2021 | Christmas Day | Kiribati |
| Saturday, December 25, 2021 | Christmas Day | Saint Kitts and Nevis |
| Saturday, December 25, 2021 | Christmas Day | South Korea |
| Saturday, December 25, 2021 | Christmas Day | Cayman Islands |
| Saturday, December 25, 2021 | Christmas Day | Lebanon |
| Saturday, December 25, 2021 | Christmas Day | Saint Lucia |
| Saturday, December 25, 2021 | Christmas Day | Liechtenstein |
| Saturday, December 25, 2021 | Christmas Day | Sri Lanka |
| Saturday, December 25, 2021 | Christmas Day | Liberia |
| Saturday, December 25, 2021 | Christmas Day | Lesotho |
| Saturday, December 25, 2021 | Christmas Day | Lithuania |
| Saturday, December 25, 2021 | Christmas Day | Luxembourg |
| Saturday, December 25, 2021 | Christmas Day | Latvia |
| Saturday, December 25, 2021 | Christmas Day | Monaco |
| Saturday, December 25, 2021 | Christmas Day | Moldova |
| Saturday, December 25, 2021 | Christmas Day | Montenegro |
| Saturday, December 25, 2021 | Christmas Day | Saint Martin |
| Saturday, December 25, 2021 | Christmas Day | Madagascar |
| Saturday, December 25, 2021 | Christmas Day | Marshall Islands |
| Saturday, December 25, 2021 | Christmas Day | North Macedonia |
| Saturday, December 25, 2021 | Christmas Day | Mali |
| Saturday, December 25, 2021 | Christmas Day | Myanmar |
| Saturday, December 25, 2021 | Christmas Day | Macau |
| Saturday, December 25, 2021 | Christmas Day | Northern Mariana Islands |
| Saturday, December 25, 2021 | Christmas Day | Martinique |
| Saturday, December 25, 2021 | Christmas Day | Montserrat |
| Saturday, December 25, 2021 | Christmas Day | Malta |
| Saturday, December 25, 2021 | Christmas Day | Mauritius |
| Saturday, December 25, 2021 | Christmas Day | Malawi |
| Saturday, December 25, 2021 | Christmas Day | Mexico |
| Saturday, December 25, 2021 | Christmas Day | Malaysia |
| Saturday, December 25, 2021 | Family Day | Mozambique |
| Saturday, December 25, 2021 | Christmas Day | Namibia |
| Saturday, December 25, 2021 | Christmas Day | New Caledonia |
| Saturday, December 25, 2021 | Christmas Day | Niger |
| Saturday, December 25, 2021 | Christmas Day | Norfolk Island |
| Saturday, December 25, 2021 | Christmas Day | Nigeria |
| Saturday, December 25, 2021 | Christmas Day | Nicaragua |
| Saturday, December 25, 2021 | Christmas Day | Netherlands |
| Saturday, December 25, 2021 | Christmas Day | Norway |
| Saturday, December 25, 2021 | Christmas Day | Nepal |
| Saturday, December 25, 2021 | Christmas Day | Nauru |
| Saturday, December 25, 2021 | Christmas Day | New Zealand |
| Saturday, December 25, 2021 | Christmas Day | Panama |
| Saturday, December 25, 2021 | Christmas Day | Peru |
| Saturday, December 25, 2021 | Christmas Day | French Polynesia |
| Saturday, December 25, 2021 | Christmas Day | Papua New Guinea |
| Saturday, December 25, 2021 | Christmas Day | Philippines |
| Saturday, December 25, 2021 | Christmas Day | Pakistan |
| Saturday, December 25, 2021 | Quaid-e-Azam Day | Pakistan |
| Saturday, December 25, 2021 | Christmas Day | Poland |
| Saturday, December 25, 2021 | Christmas Day | Saint Pierre and Miquelon |
| Saturday, December 25, 2021 | Christmas Day | Puerto Rico |
| Saturday, December 25, 2021 | Christmas Day | Portugal |
| Saturday, December 25, 2021 | Christmas Day | Palau |
| Saturday, December 25, 2021 | Christmas Day | Paraguay |
| Saturday, December 25, 2021 | Christmas Day | Reunion |
| Saturday, December 25, 2021 | Christmas Day | Romania |
| Saturday, December 25, 2021 | First Day of Western Christmas | Serbia |
| Saturday, December 25, 2021 | Christmas Day | Rwanda |
| Saturday, December 25, 2021 | Christmas Day | Solomon Islands |
| Saturday, December 25, 2021 | Christmas Day | Seychelles |
| Saturday, December 25, 2021 | Christmas Day | Sudan |
| Saturday, December 25, 2021 | Christmas Day | Sweden |
| Saturday, December 25, 2021 | Christmas Day | Singapore |
| Saturday, December 25, 2021 | Christmas Day | Saint Helena |
| Saturday, December 25, 2021 | Christmas Day | Slovenia |
| Saturday, December 25, 2021 | Christmas Day | Slovakia |
| Saturday, December 25, 2021 | Christmas Day | Sierra Leone |
| Saturday, December 25, 2021 | Christmas Day | San Marino |
| Saturday, December 25, 2021 | Christmas Day | Senegal |
| Saturday, December 25, 2021 | Christmas Day | Suriname |
| Saturday, December 25, 2021 | Christmas Day | South Sudan |
| Saturday, December 25, 2021 | Christmas Day | Sao Tome and Principe |
| Saturday, December 25, 2021 | Christmas Day | El Salvador |
| Saturday, December 25, 2021 | Christmas Day | Sint Maarten |
| Saturday, December 25, 2021 | Christmas Day | Syria |
| Saturday, December 25, 2021 | Christmas Day | Eswatini |
| Saturday, December 25, 2021 | Christmas Day | Turks and Caicos Islands |
| Saturday, December 25, 2021 | Christmas Day | Chad |
| Saturday, December 25, 2021 | Christmas Day | Togo |
| Saturday, December 25, 2021 | Christmas Day | Thailand |
| Saturday, December 25, 2021 | Christmas Day | East Timor |
| Saturday, December 25, 2021 | Christmas Day | Tonga |
| Saturday, December 25, 2021 | Christmas Day | Trinidad and Tobago |
| Saturday, December 25, 2021 | Christmas Day | Tuvalu |
| Saturday, December 25, 2021 | Constitution Day | Taiwan |
| Saturday, December 25, 2021 | Christmas Day | Taiwan |
| Saturday, December 25, 2021 | Christmas Day | Tanzania |
| Saturday, December 25, 2021 | Catholic Christmas Day | Ukraine |
| Saturday, December 25, 2021 | Christmas Day | Ukraine |
| Saturday, December 25, 2021 | Christmas Day | Uganda |
| Saturday, December 25, 2021 | Christmas Day | United Kingdom |
| Saturday, December 25, 2021 | Christmas Day | United States |
| Saturday, December 25, 2021 | Christmas Day | United States |
| Saturday, December 25, 2021 | Christmas Day | United States |
| Saturday, December 25, 2021 | Christmas Day | United States |
| Saturday, December 25, 2021 | Christmas Day | United States |
| Saturday, December 25, 2021 | Christmas Day | Uruguay |
| Saturday, December 25, 2021 | Christmas Day | Vatican City (Holy See) |
| Saturday, December 25, 2021 | Christmas Day | Saint Vincent and the Grenadines |
| Saturday, December 25, 2021 | Christmas Day | Venezuela |
| Saturday, December 25, 2021 | Christmas Day | British Virgin Islands |
| Saturday, December 25, 2021 | Christmas Day | US Virgin Islands |
| Saturday, December 25, 2021 | Christmas Day | Vietnam |
| Saturday, December 25, 2021 | Christmas Day | Vanuatu |
| Saturday, December 25, 2021 | Christmas Day | Wallis and Futuna |
| Saturday, December 25, 2021 | Christmas Day | Samoa |
| Saturday, December 25, 2021 | Christmas Day | Kosovo |
| Saturday, December 25, 2021 | Christmas Day | Mayotte |
| Saturday, December 25, 2021 | Christmas Day | South Africa |
| Saturday, December 25, 2021 | Christmas Day | Zambia |
| Saturday, December 25, 2021 | Christmas Day | Zimbabwe |
| Sunday, December 26, 2021 | Boxing Day | Andorra |
| Sunday, December 26, 2021 | Boxing Day | Antigua and Barbuda |
| Sunday, December 26, 2021 | Boxing Day | Anguilla |
| Sunday, December 26, 2021 | St. Stephen's Day | Austria |
| Sunday, December 26, 2021 | Boxing Day | Australia |
| Sunday, December 26, 2021 | Proclamation Day | Australia |
| Sunday, December 26, 2021 | Boxing Day | Aruba |
| Sunday, December 26, 2021 | Boxing Day | Barbados |
| Sunday, December 26, 2021 | Boxing Day | Bangladesh |
| Sunday, December 26, 2021 | Boxing Day | Belgium |
| Sunday, December 26, 2021 | Second day of Christmas | Bulgaria |
| Sunday, December 26, 2021 | Father's Day | Bulgaria |
| Sunday, December 26, 2021 | Boxing Day | St. Barts |
| Sunday, December 26, 2021 | Boxing Day | Bermuda |
| Sunday, December 26, 2021 | Boxing Day | The Bahamas |
| Sunday, December 26, 2021 | Boxing Day | Botswana |
| Sunday, December 26, 2021 | Boxing Day | Belize |
| Sunday, December 26, 2021 | Kwanzaa (first day) | Canada |
| Sunday, December 26, 2021 | Boxing Day | Canada |
| Sunday, December 26, 2021 | Boxing Day | Canada |
| Sunday, December 26, 2021 | Boxing Day | Canada |
| Sunday, December 26, 2021 | St. Stephen's Day | Switzerland |
| Sunday, December 26, 2021 | St. Stephen's Day | Switzerland |
| Sunday, December 26, 2021 | Boxing Day | Cook Islands |
| Sunday, December 26, 2021 | Boxing Day | Curaçao |
| Sunday, December 26, 2021 | Boxing Day | Cyprus |
| Sunday, December 26, 2021 | St. Stephen's Day | Czechia |
| Sunday, December 26, 2021 | Boxing Day | Germany |
| Sunday, December 26, 2021 | 2nd Christmas Day | Denmark |
| Sunday, December 26, 2021 | Boxing Day | Dominica |
| Sunday, December 26, 2021 | Boxing Day | Estonia |
| Sunday, December 26, 2021 | St Stephen's Day | Spain |
| Sunday, December 26, 2021 | Feast of the Holy Family | Spain |
| Sunday, December 26, 2021 | Boxing Day | Finland |
| Sunday, December 26, 2021 | Boxing Day | Fiji |
| Sunday, December 26, 2021 | Boxing Day | Falkland Islands |
| Sunday, December 26, 2021 | Boxing Day | Faroe Islands |
| Sunday, December 26, 2021 | St Stephen's Day | France |
| Sunday, December 26, 2021 | Boxing Day | Grenada |
| Sunday, December 26, 2021 | Boxing Day | Guernsey |
| Sunday, December 26, 2021 | Boxing Day | Ghana |
| Sunday, December 26, 2021 | Boxing Day | Gibraltar |
| Sunday, December 26, 2021 | Boxing Day | Greenland |
| Sunday, December 26, 2021 | Synaxis of the Mother of God | Greece |
| Sunday, December 26, 2021 | Boxing Day | Guyana |
| Sunday, December 26, 2021 | St Stephen's Day | Croatia |
| Sunday, December 26, 2021 | Second Day of Christmas | Hungary |
| Sunday, December 26, 2021 | St. Stephen's Day | Ireland |
| Sunday, December 26, 2021 | Catholic/Protestant Boxing Day | Israel |
| Sunday, December 26, 2021 | Boxing Day | Isle of Man |
| Sunday, December 26, 2021 | Second Day of Christmas | Iceland |
| Sunday, December 26, 2021 | St. Stephen's Day | Italy |
| Sunday, December 26, 2021 | Boxing Day | Jersey |
| Sunday, December 26, 2021 | Boxing Day | Jamaica |
| Sunday, December 26, 2021 | Boxing Day | Jordan |
| Sunday, December 26, 2021 | Boxing Day | Kenya |
| Sunday, December 26, 2021 | Boxing Day | Kiribati |
| Sunday, December 26, 2021 | Boxing Day | Saint Kitts and Nevis |
| Sunday, December 26, 2021 | Boxing Day | Cayman Islands |
| Sunday, December 26, 2021 | Boxing Day | Saint Lucia |
| Sunday, December 26, 2021 | St Stephen's Day | Liechtenstein |
| Sunday, December 26, 2021 | Boxing Day | Lesotho |
| Sunday, December 26, 2021 | Second Day of Christmas | Lithuania |
| Sunday, December 26, 2021 | St Stephen's Day | Luxembourg |
| Sunday, December 26, 2021 | Second Day of Christmas | Latvia |
| Sunday, December 26, 2021 | Day After Christmas | Montenegro |
| Sunday, December 26, 2021 | Boxing Day | Saint Martin |
| Sunday, December 26, 2021 | Boxing Day | Montserrat |
| Sunday, December 26, 2021 | Boxing Day | Malta |
| Sunday, December 26, 2021 | Boxing Day | Malawi |
| Sunday, December 26, 2021 | Family Day | Namibia |
| Sunday, December 26, 2021 | Boxing Day | Norfolk Island |
| Sunday, December 26, 2021 | Boxing Day | Nigeria |
| Sunday, December 26, 2021 | Second Day of Christmas | Netherlands |
| Sunday, December 26, 2021 | Boxing Day | Norway |
| Sunday, December 26, 2021 | Boxing Day | Nauru |
| Sunday, December 26, 2021 | Boxing Day | New Zealand |
| Sunday, December 26, 2021 | Boxing Day | Papua New Guinea |
| Sunday, December 26, 2021 | Day After Christmas (Christians only) | Pakistan |
| Sunday, December 26, 2021 | Second Day of Christmas | Poland |
| Sunday, December 26, 2021 | Second day of Christmas | Romania |
| Sunday, December 26, 2021 | Boxing Day | Rwanda |
| Sunday, December 26, 2021 | National Day of Thanksgiving | Solomon Islands |
| Sunday, December 26, 2021 | Boxing Day | Sweden |
| Sunday, December 26, 2021 | Boxing Day | Saint Helena |
| Sunday, December 26, 2021 | Independence and Unity Day | Slovenia |
| Sunday, December 26, 2021 | St. Stephen's Day | Slovakia |
| Sunday, December 26, 2021 | Boxing Day | Sierra Leone |
| Sunday, December 26, 2021 | Boxing Day | San Marino |
| Sunday, December 26, 2021 | Boxing Day | Suriname |
| Sunday, December 26, 2021 | Second Day of Christmas | South Sudan |
| Sunday, December 26, 2021 | Boxing Day | Sint Maarten |
| Sunday, December 26, 2021 | Boxing Day | Eswatini |
| Sunday, December 26, 2021 | Boxing Day | Turks and Caicos Islands |
| Sunday, December 26, 2021 | Boxing Day | Tonga |
| Sunday, December 26, 2021 | Boxing Day | Trinidad and Tobago |
| Sunday, December 26, 2021 | Boxing Day | Tuvalu |
| Sunday, December 26, 2021 | Boxing Day | Tanzania |
| Sunday, December 26, 2021 | Boxing Day | Uganda |
| Sunday, December 26, 2021 | Boxing Day | United Kingdom |
| Sunday, December 26, 2021 | Kwanzaa (first day) | United States |
| Sunday, December 26, 2021 | Day After Christmas Day | United States |
| Sunday, December 26, 2021 | Day After Christmas Day | United States |
| Sunday, December 26, 2021 | St Stephen's Day | Vatican City (Holy See) |
| Sunday, December 26, 2021 | Boxing Day | Saint Vincent and the Grenadines |
| Sunday, December 26, 2021 | Boxing Day | British Virgin Islands |
| Sunday, December 26, 2021 | Christmas Second Day | US Virgin Islands |
| Sunday, December 26, 2021 | Family Day | Vanuatu |
| Sunday, December 26, 2021 | Boxing Day | Samoa |
| Sunday, December 26, 2021 | Day of Goodwill | South Africa |
| Sunday, December 26, 2021 | Boxing Day | Zimbabwe |
| Monday, December 27, 2021 | Day off for Christmas Day | Antigua and Barbuda |
| Monday, December 27, 2021 | Day off for Christmas Day | Anguilla |
| Monday, December 27, 2021 | Day off for Christmas Day | Albania |
| Monday, December 27, 2021 | Christmas Day Observed | Australia |
| Monday, December 27, 2021 | Day off for Boxing Day | Barbados |
| Monday, December 27, 2021 | Christmas holiday | Bulgaria |
| Monday, December 27, 2021 | Christmas/Boxing Day Holiday | Bermuda |
| Monday, December 27, 2021 | Day off for Boxing Day | The Bahamas |
| Monday, December 27, 2021 | Day off for Boxing Day | Botswana |
| Monday, December 27, 2021 | Day off for Boxing Day | Belize |
| Monday, December 27, 2021 | Day off for Christmas Day | Canada |
| Monday, December 27, 2021 | Day off for Boxing Day | Canada |
| Monday, December 27, 2021 | Christmas Day observed | Cook Islands |
| Monday, December 27, 2021 | Day off for Boxing Day | Dominica |
| Monday, December 27, 2021 | Day off for Christmas Day | Fiji |
| Monday, December 27, 2021 | Day off for Christmas Day | Falkland Islands |
| Monday, December 27, 2021 | Christmas Holiday | Falkland Islands |
| Monday, December 27, 2021 | Day off for Boxing Day | Grenada |
| Monday, December 27, 2021 | Bank Holiday | Guernsey |
| Monday, December 27, 2021 | Day off for Christmas Day | Ghana |
| Monday, December 27, 2021 | Day off for Christmas Day | Gibraltar |
| Monday, December 27, 2021 | Day off for Christmas Day | Gambia |
| Monday, December 27, 2021 | Public Sector Holiday | Guatemala |
| Monday, December 27, 2021 | Day off for Boxing Day | Guyana |
| Monday, December 27, 2021 | First Weekday After Christmas Day | Hong Kong |
| Monday, December 27, 2021 | Boxing Day | Indonesia |
| Monday, December 27, 2021 | Day off for Christmas Day | Isle of Man |
| Monday, December 27, 2021 | Day off for Christmas Day | Jersey |
| Monday, December 27, 2021 | Day off for Boxing Day | Jamaica |
| Monday, December 27, 2021 | Day off for Boxing Day | Kenya |
| Monday, December 27, 2021 | Day off for Boxing Day | Kiribati |
| Monday, December 27, 2021 | Day off for Christmas Day | Saint Kitts and Nevis |
| Monday, December 27, 2021 | Constitution Day | North Korea |
| Monday, December 27, 2021 | Day off for Christmas Day | Cayman Islands |
| Monday, December 27, 2021 | Christmas Day Holiday | Macau |
| Monday, December 27, 2021 | Christmas Day observed | Montserrat |
| Monday, December 27, 2021 | Day off for Christmas Day | Malawi |
| Monday, December 27, 2021 | Family Day observed | Namibia |
| Monday, December 27, 2021 | Christmas Day Observed | Norfolk Island |
| Monday, December 27, 2021 | Day off for Christmas Day | Nigeria |
| Monday, December 27, 2021 | Christmas Day observed | Nauru |
| Monday, December 27, 2021 | Day off for Christmas Day | New Zealand |
| Monday, December 27, 2021 | Public Sector Holiday | Peru |
| Monday, December 27, 2021 | Day off for Boxing Day | Papua New Guinea |
| Monday, December 27, 2021 | National Day of the Victorious Greater Poland Uprising | Poland |
| Monday, December 27, 2021 | Christmas Day observed | Rwanda |
| Monday, December 27, 2021 | Boxing Day observed | Rwanda |
| Monday, December 27, 2021 | Day off for Boxing Day | Saint Helena |
| Monday, December 27, 2021 | Day off for Boxing Day | Sierra Leone |
| Monday, December 27, 2021 | Christmas Holiday | South Sudan |
| Monday, December 27, 2021 | Day off for Boxing Day | Eswatini |
| Monday, December 27, 2021 | Day off for Christmas Day | Turks and Caicos Islands |
| Monday, December 27, 2021 | Day off for Boxing Day | Tonga |
| Monday, December 27, 2021 | Boxing Day observed | Trinidad and Tobago |
| Monday, December 27, 2021 | Day off for Christmas Day | Tuvalu |
| Monday, December 27, 2021 | Day off for Catholic Christmas Day | Ukraine |
| Monday, December 27, 2021 | Substitute Bank Holiday for Christmas Day | United Kingdom |
| Monday, December 27, 2021 | International Day of Epidemic Preparedness | United States |
| Monday, December 27, 2021 | Christmas Day (substitute) | United States |
| Monday, December 27, 2021 | Day off for Boxing Day | Saint Vincent and the Grenadines |
| Monday, December 27, 2021 | Day off for Christmas Day | British Virgin Islands |
| Monday, December 27, 2021 | Day off for Family Day | Vanuatu |
| Monday, December 27, 2021 | Day off for Boxing Day | Samoa |
| Monday, December 27, 2021 | Day off for Christmas Day | Kosovo |
| Monday, December 27, 2021 | Day of Goodwill observed | South Africa |
| Monday, December 27, 2021 | Boxing Day observed | Zimbabwe |
| Tuesday, December 28, 2021 | Day off for Boxing Day | Antigua and Barbuda |
| Tuesday, December 28, 2021 | Day off for Boxing Day | Anguilla |
| Tuesday, December 28, 2021 | Boxing Day Observed | Australia |
| Tuesday, December 28, 2021 | Day off for Proclamation Day | Australia |
| Tuesday, December 28, 2021 | Christmas holiday | Bulgaria |
| Tuesday, December 28, 2021 | Christmas/Boxing Day Holiday | Bermuda |
| Tuesday, December 28, 2021 | Day off for Boxing Day | Canada |
| Tuesday, December 28, 2021 | Boxing Day observed | Cook Islands |
| Tuesday, December 28, 2021 | Day off for Boxing Day | Fiji |
| Tuesday, December 28, 2021 | Day off for Boxing Day | Falkland Islands |
| Tuesday, December 28, 2021 | Day off for Boxing Day | Ghana |
| Tuesday, December 28, 2021 | Day off for Boxing Day | Gibraltar |
| Tuesday, December 28, 2021 | Day off for Boxing Day | Isle of Man |
| Tuesday, December 28, 2021 | Day off for Boxing Day | Jersey |
| Tuesday, December 28, 2021 | Day off for Boxing Day | Cayman Islands |
| Tuesday, December 28, 2021 | Day off for Boxing Day | Montserrat |
| Tuesday, December 28, 2021 | Day off for Boxing Day | Malawi |
| Tuesday, December 28, 2021 | Day of the Holy Innocents | Mexico |
| Tuesday, December 28, 2021 | Boxing Day Observed | Norfolk Island |
| Tuesday, December 28, 2021 | Day off for Boxing Day | Nigeria |
| Tuesday, December 28, 2021 | Boxing Day observed | Nauru |
| Tuesday, December 28, 2021 | Day off for Boxing Day | New Zealand |
| Tuesday, December 28, 2021 | Day off for Christmas Day | Saint Helena |
| Tuesday, December 28, 2021 | Republic Day | South Sudan |
| Tuesday, December 28, 2021 | Day off for Boxing Day | Turks and Caicos Islands |
| Tuesday, December 28, 2021 | Day off for Boxing Day | Tuvalu |
| Tuesday, December 28, 2021 | Substitute Bank Holiday for Boxing Day | United Kingdom |
| Tuesday, December 28, 2021 | Day off for Boxing Day | British Virgin Islands |
| Wednesday, December 29, 2021 | Day off for Christmas Holiday | Falkland Islands |
| Wednesday, December 29, 2021 | Independence Day | Mongolia |
| Wednesday, December 29, 2021 | Civil Service Holiday | Malawi |
| Wednesday, December 29, 2021 | Tamu Lhosar Holiday | Nepal |
| Thursday, December 30, 2021 | Christmas Holiday | Falkland Islands |
| Thursday, December 30, 2021 | Civil Service Holiday | Malawi |
| Thursday, December 30, 2021 | Tamu Lhosar | Nepal |
| Thursday, December 30, 2021 | Rizal Day | Philippines |
| Thursday, December 30, 2021 | Day of the Declaration of Slovakia as an Independent Ecclesiastic Province | Slovakia |
| Thursday, December 30, 2021 | New Year Holiday | United States |
| Friday, December 31, 2021 | New Year's Eve | Andorra |
| Friday, December 31, 2021 | New Year's Eve | United Arab Emirates |
| Friday, December 31, 2021 | New Year's Eve | Albania |
| Friday, December 31, 2021 | New Year's Eve | Armenia |
| Friday, December 31, 2021 | New Year's Eve | Argentina |
| Friday, December 31, 2021 | New Year's Eve | Austria |
| Friday, December 31, 2021 | New Year's Eve | Australia |
| Friday, December 31, 2021 | New Year's Eve | Australia |
| Friday, December 31, 2021 | New Year's Eve | Australia |
| Friday, December 31, 2021 | World Azerbaijanis Solidarity Day | Azerbaijan |
| Friday, December 31, 2021 | New Year's Eve | Azerbaijan |
| Friday, December 31, 2021 | New Year's Eve | Bosnia and Herzegovina |
| Friday, December 31, 2021 | Old Year's Night | Barbados |
| Friday, December 31, 2021 | New Year's Eve | Bangladesh |
| Friday, December 31, 2021 | New Year's Eve | Belgium |
| Friday, December 31, 2021 | New Year's Eve | Bermuda |
| Friday, December 31, 2021 | New Year's Eve (from 2pm) | Brazil |
| Friday, December 31, 2021 | New Year's Eve | The Bahamas |
| Friday, December 31, 2021 | New Year's Eve | Belarus |
| Friday, December 31, 2021 | New Year's Eve | Canada |
| Friday, December 31, 2021 | New Year's Eve | Congo Democratic Republic |
| Friday, December 31, 2021 | New Year's Eve | Switzerland |
| Friday, December 31, 2021 | Restoration of the Republic | Switzerland |
| Friday, December 31, 2021 | New Year's Eve | Chile |
| Friday, December 31, 2021 | New Year's Eve | Colombia |
| Friday, December 31, 2021 | New Year's Eve | Costa Rica |
| Friday, December 31, 2021 | New Year's Eve | Cuba |
| Friday, December 31, 2021 | New Year's Eve | Curaçao |
| Friday, December 31, 2021 | New Year's Eve | Cyprus |
| Friday, December 31, 2021 | New Year's Eve | Germany |
| Friday, December 31, 2021 | New Year's Eve | Denmark |
| Friday, December 31, 2021 | New Year's Eve | Denmark |
| Friday, December 31, 2021 | Bank Holiday | Denmark |
| Friday, December 31, 2021 | New Year's Eve | Dominican Republic |
| Friday, December 31, 2021 | Day off for New Year's Day | Ecuador |
| Friday, December 31, 2021 | New Year's Eve | Ecuador |
| Friday, December 31, 2021 | New Year's Eve | Spain |
| Friday, December 31, 2021 | New Year's Eve | Finland |
| Friday, December 31, 2021 | Christmas Holiday | Falkland Islands |
| Friday, December 31, 2021 | Day off for New Year's Day | Micronesia |
| Friday, December 31, 2021 | New Year's Eve | Faroe Islands |
| Friday, December 31, 2021 | New Year's Eve | France |
| Friday, December 31, 2021 | New Year's Eve | Georgia |
| Friday, December 31, 2021 | New Year's Eve | French Guiana |
| Friday, December 31, 2021 | New Year's Eve | Ghana |
| Friday, December 31, 2021 | New Year's Eve | Gibraltar |
| Friday, December 31, 2021 | New Year's Eve | Greenland |
| Friday, December 31, 2021 | New Year's Eve | Guadeloupe |
| Friday, December 31, 2021 | New Year's Eve | Equatorial Guinea |
| Friday, December 31, 2021 | New Year's Eve | Guatemala |
| Friday, December 31, 2021 | Public Sector Holiday | Guatemala |
| Friday, December 31, 2021 | New Year observed | Guam |
| Friday, December 31, 2021 | New Year's Eve | Hong Kong |
| Friday, December 31, 2021 | New Year's Eve | Honduras |
| Friday, December 31, 2021 | New Year's Eve | Haiti |
| Friday, December 31, 2021 | New Year's Eve | Hungary |
| Friday, December 31, 2021 | New Year's Eve | Indonesia |
| Friday, December 31, 2021 | New Year's Eve | Ireland |
| Friday, December 31, 2021 | New Year's Eve | Israel |
| Friday, December 31, 2021 | New Year's Eve | India |
| Friday, December 31, 2021 | New Year's Eve | Iraq |
| Friday, December 31, 2021 | New Year's Eve | Iceland |
| Friday, December 31, 2021 | New Year's Eve | Italy |
| Friday, December 31, 2021 | New Year's Eve | Jamaica |
| Friday, December 31, 2021 | December 31 Bank Holiday | Japan |
| Friday, December 31, 2021 | New Year's Eve | Kenya |
| Friday, December 31, 2021 | New Year's Eve | South Korea |
| Friday, December 31, 2021 | New Year's Eve | Kuwait |
| Friday, December 31, 2021 | New Year's Eve | Cayman Islands |
| Friday, December 31, 2021 | New Year's Eve | Kazakhstan |
| Friday, December 31, 2021 | New Year's Eve | Liechtenstein |
| Friday, December 31, 2021 | New Year's Eve | Lithuania |
| Friday, December 31, 2021 | New Year's Eve | Luxembourg |
| Friday, December 31, 2021 | New Year's Eve | Latvia |
| Friday, December 31, 2021 | New Year's Eve | Monaco |
| Friday, December 31, 2021 | New Year's Eve | Moldova |
| Friday, December 31, 2021 | New Year's Eve | Montenegro |
| Friday, December 31, 2021 | New Year's Eve | Saint Martin |
| Friday, December 31, 2021 | New Year's Eve | Madagascar |
| Friday, December 31, 2021 | Day off for New Year's Day | Marshall Islands |
| Friday, December 31, 2021 | New Year's Eve | Marshall Islands |
| Friday, December 31, 2021 | New Year's Eve | North Macedonia |
| Friday, December 31, 2021 | New Year Holiday | Myanmar |
| Friday, December 31, 2021 | New Year's Eve | Macau |
| Friday, December 31, 2021 | New Year's Eve Afternoon | Macau |
| Friday, December 31, 2021 | Day off for New Year's Day | Northern Mariana Islands |
| Friday, December 31, 2021 | New Year's Eve | Martinique |
| Friday, December 31, 2021 | Festival Day | Montserrat |
| Friday, December 31, 2021 | New Year's Eve | Malta |
| Friday, December 31, 2021 | New Year's Eve | Malawi |
| Friday, December 31, 2021 | New Year's Eve | Mexico |
| Friday, December 31, 2021 | New Year's Eve | Malaysia |
| Friday, December 31, 2021 | Public Sector Half Day | Mozambique |
| Friday, December 31, 2021 | New Year's Eve | New Caledonia |
| Friday, December 31, 2021 | New Year's Eve | Norfolk Island |
| Friday, December 31, 2021 | New Year's Eve | Nigeria |
| Friday, December 31, 2021 | New Year's Eve | Nicaragua |
| Friday, December 31, 2021 | New Year's Eve | Netherlands |
| Friday, December 31, 2021 | New Year's Eve | Norway |
| Friday, December 31, 2021 | New Year's Eve | New Zealand |
| Friday, December 31, 2021 | New Year's Eve | Panama |
| Friday, December 31, 2021 | New Year's Eve | Peru |
| Friday, December 31, 2021 | Public Sector Holiday | Peru |
| Friday, December 31, 2021 | New Year's Eve | Philippines |
| Friday, December 31, 2021 | New Year's Eve | Pakistan |
| Friday, December 31, 2021 | New Year's Eve | Poland |
| Friday, December 31, 2021 | New Year's Eve | Saint Pierre and Miquelon |
| Friday, December 31, 2021 | New Year's Eve | Puerto Rico |
| Friday, December 31, 2021 | New Year's Eve | Portugal |
| Friday, December 31, 2021 | Day off for New Year's Day | Palau |
| Friday, December 31, 2021 | New Year's Eve | Paraguay |
| Friday, December 31, 2021 | Public Sector Holiday | Paraguay |
| Friday, December 31, 2021 | New Year's Eve | Qatar |
| Friday, December 31, 2021 | New Year's Eve | Romania |
| Friday, December 31, 2021 | Western New Year's Eve | Serbia |
| Friday, December 31, 2021 | New Year's Eve | Russia |
| Friday, December 31, 2021 | New Year's Eve | Sweden |
| Friday, December 31, 2021 | New Year's Eve | Singapore |
| Friday, December 31, 2021 | New Year's Eve | San Marino |
| Friday, December 31, 2021 | New Year's Eve | South Sudan |
| Friday, December 31, 2021 | Day off for New Year | Sao Tome and Principe |
| Friday, December 31, 2021 | New Year's Eve | El Salvador |
| Friday, December 31, 2021 | New Year's Eve | Thailand |
| Friday, December 31, 2021 | National Heroes Day | East Timor |
| Friday, December 31, 2021 | New Year's Eve | Turkey |
| Friday, December 31, 2021 | New Year's Eve | Trinidad and Tobago |
| Friday, December 31, 2021 | Republic Day Holiday | Taiwan |
| Friday, December 31, 2021 | New Year's Eve | United Kingdom |
| Friday, December 31, 2021 | New Year's Day (substitute) | United States |
| Friday, December 31, 2021 | New Year's Day (substitute) | United States |
| Friday, December 31, 2021 | New Year's Eve | United States |
| Friday, December 31, 2021 | New Year's Eve | United States |
| Friday, December 31, 2021 | New Year's Eve | Uruguay |
| Friday, December 31, 2021 | New Year Holiday | Uzbekistan |
| Friday, December 31, 2021 | New Year's Eve | Vatican City (Holy See) |
| Friday, December 31, 2021 | New Year's Eve | Venezuela |
| Friday, December 31, 2021 | New Year's Eve | US Virgin Islands |
| Friday, December 31, 2021 | International New Year's Eve | Vietnam |
| Friday, December 31, 2021 | New Year's Eve | Kosovo |
| Friday, December 31, 2021 | New Year's Eve | South Africa |