| Date | Country | Holiday name |
|---|---|---|
| 2031-01-01 |  Andorra | New Year's Day |
| 2031-01-01 |  United Arab Emirates | New Year's Day |
| 2031-01-01 |  Antigua & Barbuda | New Year's Day |
| 2031-01-01 |  Anguilla | New Year's Day |
| 2031-01-01 |  Albania | New Year's Day |
| 2031-01-01 |  Armenia | New Year's Day |
| 2031-01-01 |  Angola | New Year's Day |
| 2031-01-01 |  Argentina | New Year's Day |
| 2031-01-01 |  American Samoa | New Year's Day |
| 2031-01-01 |  Austria | New Year's Day |
| 2031-01-01 |  Australia | New Year's Day |
| 2031-01-01 |  Aruba | New Year's Day |
| 2031-01-01 |  Åland Islands | New Year's Day |
| 2031-01-01 |  Azerbaijan | New Year's Day |
| 2031-01-01 |  Bosnia and Herzegovina | New Year's Day |
| 2031-01-01 |  Barbados | New Year's Day |
| 2031-01-01 |  Belgium | New Year's Day |
| 2031-01-01 |  Burkina Faso | New Year's Day |
| 2031-01-01 |  Bulgaria | New Year's Day |
| 2031-01-01 |  Bahrain | New Year's Day |
| 2031-01-01 |  Burundi | New Year's Day |
| 2031-01-01 |  Benin | New Year's Day |
| 2031-01-01 |  St. Barths | New Year's Day |
| 2031-01-01 |  Bermuda | New Year's Day |
| 2031-01-01 |  Brunei | New Year's Day |
| 2031-01-01 |  Bolivia | New Year's Day |
| 2031-01-01 |  Caribbean Netherlands | New Year's Day |
| 2031-01-01 |  Brazil | New Year's Day |
| 2031-01-01 |  Bahamas | New Year's Day |
| 2031-01-01 |  Botswana | New Year's Day |
| 2031-01-01 |  Belarus | New Year's Day |
| 2031-01-01 |  Belize | New Year's Day |
| 2031-01-01 |  Canada | New Year's Day |
| 2031-01-01 |  Cocos (Keeling) Islands | New Year's Day |
| 2031-01-01 |  Democratic Republic of the Congo | New Year's Day |
| 2031-01-01 |  Central African Republic | New Year's Day |
| 2031-01-01 |  Republic of the Congo | New Year's Day |
| 2031-01-01 |  Switzerland | New Year's Day |
| 2031-01-01 |  Republic of Côte d'Ivoire | New Year's Day |
| 2031-01-01 |  Cook Islands | New Year's Day |
| 2031-01-01 |  Chile | New Year's Day |
| 2031-01-01 |  Cameroon | New Year's Day |
| 2031-01-01 |  China | New Year's Day |
| 2031-01-01 |  Colombia | New Year's Day |
| 2031-01-01 |  Costa Rica | New Year's Day |
| 2031-01-01 |  Cuba | Triumph of the Revolution |
| 2031-01-01 |  Cape Verde | New Year's Day |
| 2031-01-01 |  Curaçao | New Year's Day |
| 2031-01-01 |  Christmas Island | New Year's Day |
| 2031-01-01 |  Cyprus | New Year's Day |
| 2031-01-01 |  Czech Republic | New Year's Day |
| 2031-01-01 |  Germany | New Year's Day |
| 2031-01-01 |  Djibouti | New Year's Day |
| 2031-01-01 |  Denmark | New Year's Day |
| 2031-01-01 |  Dominica | New Year's Day |
| 2031-01-01 |  Dominican Republic | New Year's Day |
| 2031-01-01 |  Algeria | New Year's Day |
| 2031-01-01 |  Ecuador | New Year's Day |
| 2031-01-01 |  Estonia | New Year's Day |
| 2031-01-01 |  Eritrea | New Year's Day |
| 2031-01-01 |  Spain | New Year's Day |
| 2031-01-01 |  Finland | New Year's Day |
| 2031-01-01 |  Fiji | New Year's Day |
| 2031-01-01 |  Faroe Islands | New Year's Day |
| 2031-01-01 |  France | New Year's Day |
| 2031-01-01 |  Gabon | New Year's Day |
| 2031-01-01 |  United Kingdom | New Year's Day |
| 2031-01-01 |  Grenada | New Year's Day |
| 2031-01-01 |  Georgia | New Year's Day |
| 2031-01-01 |  French Guiana | New Year's Day |
| 2031-01-01 |  Guernsey | New Year's Day |
| 2031-01-01 |  Ghana | New Year's Day |
| 2031-01-01 |  Gibraltar | New Year's Day |
| 2031-01-01 |  Greenland | New Year's Day |
| 2031-01-01 |  The Gambia | New Year's Day |
| 2031-01-01 |  Guinea | New Year's Day |
| 2031-01-01 |  Guadeloupe | New Year's Day |
| 2031-01-01 |  Republic of Equatorial Guinea | New Year's Day |
| 2031-01-01 |  Greece | New Year's Day |
| 2031-01-01 |  Guatemala | New Year's Day |
| 2031-01-01 |  Guam | New Year's Day |
| 2031-01-01 |  Guinea-Bissau | New Year's Day |
| 2031-01-01 |  Guyana | New Year's Day |
| 2031-01-01 |  Hong Kong | New Year's Day |
| 2031-01-01 |  Honduras | New Year's Day |
| 2031-01-01 |  Croatia | New Year's Day |
| 2031-01-01 |  Haiti | Independence Day |
| 2031-01-01 |  Hungary | New Year's Day |
| 2031-01-01 | Canary Islands | New Year's Day |
| 2031-01-01 |  Indonesia | New Year's Day |
| 2031-01-01 |  Ireland | New Year's Day |
| 2031-01-01 |  Isle of Man | New Year's Day |
| 2031-01-01 |  Iceland | New Year's Day |
| 2031-01-01 |  Italia | New Year's Day |
| 2031-01-01 |  Jersey | New Year's Day |
| 2031-01-01 |  Jamaica | New Year's Day |
| 2031-01-01 |  Japan | New Year's Day |
| 2031-01-01 |  Kenya | New Year's Day |
| 2031-01-01 |  Comoros | New Year's Day |
| 2031-01-01 |  St. Kitts & Nevis | New Year's Day |
| 2031-01-01 |  South Korea | New Year's Day |
| 2031-01-01 |  Cayman Islands | New Year's Day |
| 2031-01-01 |  St. Lucia | New Year's Day |
| 2031-01-01 |  Lichtenstein | New Year's Day |
| 2031-01-01 |  Liberia | New Year's Day |
| 2031-01-01 |  Lesotho | New Year's Day |
| 2031-01-01 |  Lithuania | New Year's Day |
| 2031-01-01 |  Luxembourg | New Year's Day |
| 2031-01-01 |  Latvia | New Year's Day |
| 2031-01-01 |  Kingdom of Morocco | New Year's Day |
| 2031-01-01 |  Monaco | New Year's Day |
| 2031-01-01 |  Moldova | New Year's Day |
| 2031-01-01 |  Montenegro | New Year's Day |
| 2031-01-01 |  St. Martin | New Year's Day |
| 2031-01-01 |  Madagascar | New Year's Day |
| 2031-01-01 |  Macedonia | New Year's Day |
| 2031-01-01 |  Republic of Mali | New Year's Day |
| 2031-01-01 |  Martinique | New Year's Day |
| 2031-01-01 |  Mauritania | New Year's Day |
| 2031-01-01 |  Montserrat | New Year's Day |
| 2031-01-01 |  Malta | New Year's Day |
| 2031-01-01 |  Malawi | New Year's Day |
| 2031-01-01 |  Mexico | New Year's Day |
| 2031-01-01 |  Malaysia | New Year's Day |
| 2031-01-01 |  Mozambique | New Year's Day |
| 2031-01-01 |  Namibia | New Year's Day |
| 2031-01-01 |  New Caledonia | Jour de l'an |
| 2031-01-01 |  Republic of the Niger | New Year's Day |
| 2031-01-01 |  Nigeria | New Year's Day |
| 2031-01-01 |  Nicaragua | New Year's Day |
| 2031-01-01 |  Netherlands | New Year's Day |
| 2031-01-01 |  Norway | New Year's Day |
| 2031-01-01 |  New Zealand | New Year's Day |
| 2031-01-01 |  Panama | New Year's Day |
| 2031-01-01 |  Peru | New Year's Day |
| 2031-01-01 |  Philippines | New Year's Day |
| 2031-01-01 |  Poland | New Year's Day |
| 2031-01-01 |  St. Pierre & Miquelon | New Year's Day |
| 2031-01-01 |  Puerto Rico | New Year's Day |
| 2031-01-01 |  Portugal | New Year's Day |
| 2031-01-01 |  Paraguay | New Year's Day |
| 2031-01-01 |  Réunion | New Year's Day |
| 2031-01-01 |  Romania | New Year's Day |
| 2031-01-01 |  Serbia | New Year's Day |
| 2031-01-01 |  Russia | New Year's Day |
| 2031-01-01 |  Rwanda | New Year's Day |
| 2031-01-01 |  Seychelles | New Year's Day |
| 2031-01-01 |  Sudan | Independence Day |
| 2031-01-01 |  Sweden | New Year's Day |
| 2031-01-01 |  Singapore | New Year's Day |
| 2031-01-01 |  St. Helena | New Year's Day |
| 2031-01-01 |  Slovenia | New Year's Day |
| 2031-01-01 |  Svalbard & Jan Mayen | New Year's Day |
| 2031-01-01 |  Slovakia | New Year's Day |
| 2031-01-01 |  Sierra Leone | New Year's Day |
| 2031-01-01 |  San Marino | New Year's Day |
| 2031-01-01 |  Senegal | New Year's Day |
| 2031-01-01 |  Suriname | New Year's Day |
| 2031-01-01 |  South Sudan | New Year's Day |
| 2031-01-01 |  São Tomé & Príncipe | New Year's Day |
| 2031-01-01 |  Sint Maarten | New Year's Day |
| 2031-01-01 |  Swaziland | New Year's Day |
| 2031-01-01 |  Turks & Caicos Islands | New Year's Day |
| 2031-01-01 |  Chad | New Year's Day |
| 2031-01-01 |  Togolese Republic | New Year's Day |
| 2031-01-01 |  Thailand | New Year's Day |
| 2031-01-01 |  Tunisia | New Year's Day |
| 2031-01-01 |  Tonga | New Year's Day |
| 2031-01-01 |  Turkey | New Year's Day |
| 2031-01-01 |  Trinidad & Tobago | New Year's Day |
| 2031-01-01 |  Taiwan | Founding of the Republic of China |
| 2031-01-01 |  Tanzania | New Year's Day |
| 2031-01-01 |  Ukraine | New Year |
| 2031-01-01 |  Uganda | New Year's Day |
| 2031-01-01 |  United States of America | New Year's Day |
| 2031-01-01 |  Uruguay | New Year's Day |
| 2031-01-01 |  Vatican City | Solemnity of Mary, Mother of God |
| 2031-01-01 |  St. Vincent & Grenadines | New Year's Day |
| 2031-01-01 |  Venezuela | New Year's Day |
| 2031-01-01 |  British Virgin Islands | New Year's Day |
| 2031-01-01 |  U.S. Virgin Islands | New Year's Day |
| 2031-01-01 |  Vietnam | New Year's Day |
| 2031-01-01 |  Vanuatu | New Year's Day |
| 2031-01-01 |  Kosovo | New Year's Day |
| 2031-01-01 |  Mayotte | New Year's Day |
| 2031-01-01 |  South Africa | New Year's Day |
| 2031-01-01 |  Zambia | New Year's Day |
| 2031-01-01 |  Zimbabwe | New Year's Day |
| 2031-01-01 |  Cambodia | International New Year Day |
| 2031-01-01 |  Jordan | New Year's Day |
| 2031-01-01 |  Kazakhstan | New Year's Day |
| 2031-01-01 |  Kuwait | New Year's Day |
| 2031-01-01 |  Laos | New Year's Day |
| 2031-01-01 |  Timor Leste | New Year's Day |
| 2031-01-01 |  Uzbekistan | New Year's Day |
| 2031-01-01 |  Papua New Guinea | New Year's Day |
| 2031-01-02 | Albania | New Year Holiday |
| 2031-01-02 | Azerbaijan | New Year's Day |
| 2031-01-02 | Bosnia and Herzegovina | 2nd day of the New Year |
| 2031-01-02 | Botswana | New Year's Holiday |
| 2031-01-02 | Switzerland | 2 Janvier (JU) |
| 2031-01-02 | Cook Islands | Day after New Year's Day |
| 2031-01-02 | Cuba | Victory of Armed Forces Day |
| 2031-01-02 | United Kingdom | January 2nd |
| 2031-01-02 | Georgia | Bedoba |
| 2031-01-02 | Haiti | Ancestry Day |
| 2031-01-02 | St. Kitts & Nevis | Carnival Day |
| 2031-01-02 | St. Lucia | Second New Year's Day |
| 2031-01-02 | Montenegro | New Year's Day |
| 2031-01-02 | New Zealand | Day after New Year's Day |
| 2031-01-02 | Serbia | New Year's Day |
| 2031-01-02 | Russia | New Year Holiday |
| 2031-01-02 | Rwanda | Public Holiday |
| 2031-01-02 | Slovenia | New Year's Day |
| 2031-01-02 | Tanzania | Zanzibar Revolution Day |
| 2031-01-02 | Ukraine | New Year |
| 2031-01-02 | Kazakhstan | New Year's Day |
| 2031-01-03 | Armenia | Pre-Christmas holidays |
| 2031-01-03 | Burkina Faso | Anniversary of the 1966 Upper Voltan coup d'état |
| 2031-01-04 | Brazil | Criação do estado |
| 2031-01-04 | Democratic Republic of the Congo | Day of the Martyrs |
| 2031-01-06 | Andorra | Epiphany |
| 2031-01-06 | Armenia | Christmas Day |
| 2031-01-06 | Austria | Epiphany |
| 2031-01-06 | Åland Islands | Epiphany |
| 2031-01-06 | Bosnia and Herzegovina | Epiphany |
| 2031-01-06 | Switzerland | Epiphany |
| 2031-01-06 | Colombia | Epiphany |
| 2031-01-06 | Cyprus | Epiphany |
| 2031-01-06 | Germany | Epiphany |
| 2031-01-06 | Dominican Republic | Epiphany |
| 2031-01-06 | Spain | Epiphany |
| 2031-01-06 |  Ethiopia | Christmas Day |
| 2031-01-06 | Finland | Epiphany |
| 2031-01-06 | Greenland | Epiphany |
| 2031-01-06 | Greece | Epiphany |
| 2031-01-06 | Croatia | Epiphany |
| 2031-01-06 | Canary Islands | Epiphany |
| 2031-01-06 | Italia | Epiphany |
| 2031-01-06 | Lichtenstein | Epiphany |
| 2031-01-06 | Montenegro | Christmas Eve |
| 2031-01-06 | Poland | Epiphany |
| 2031-01-06 | Puerto Rico | Epiphany |
| 2031-01-06 | Sweden | Epiphany |
| 2031-01-06 | Slovakia | Epiphany |
| 2031-01-06 | San Marino | Epiphany |
| 2031-01-06 | Vatican City | Epiphany |
| 2031-01-06 | U.S. Virgin Islands | Three Kings Day |
| 2031-01-07 | Bosnia and Herzegovina | Orthodox Christmas |
| 2031-01-07 | Belarus | Christmas Day |
| 2031-01-07 |  Egypt | Christmas Day |
| 2031-01-07 | Eritrea | Orthodox Christmas |
| 2031-01-07 | Georgia | Orthodox Christmas |
| 2031-01-07 | Ghana | Constitution Day |
| 2031-01-07 | Moldova | Orthodox Christmas |
| 2031-01-07 | Montenegro | Christmas Day |
| 2031-01-07 | Macedonia | Orthodox Christmas |
| 2031-01-07 | Serbia | Orthodox Christmas |
| 2031-01-07 | Russia | Christmas Day |
| 2031-01-07 | Sudan | Coptic Christmas |
| 2031-01-07 | Kosovo | Orthodox Christmas |
| 2031-01-07 | Cambodia | Day of Victory over the Genocidal Regime |
| 2031-01-07 | Kazakhstan | Orthodox Christmas |
| 2031-01-08 | Montenegro | Boxing Day |
| 2031-01-08 | Russia | New Year Holiday |
| 2031-01-09 | Bosnia and Herzegovina | Republic Day |
| 2031-01-09 | Panama | Martyrs' Day |
| 2031-01-09 | South Sudan | Peace Agreement Day |
| 2031-01-10 | Benin | Fête du Vodoun |
| 2031-01-10 | Bahamas | Majority Rule Day |
| 2031-01-11 | Kingdom of Morocco | Anniversary of the Independence Manifesto |
| 2031-01-11 | Brunei | Nuzul Al-Quran |
| 2031-01-11 | Malaysia | Day of Nuzul Al-Quran |
| 2031-01-12 | Brazil | Dia do evangélico |
| 2031-01-12 | Algeria | Amazigh New Year |
| 2031-01-13 | Cape Verde | Democracy Day |
| 2031-01-13 | Japan | Coming of Age Day |
| 2031-01-13 | Puerto Rico | Birthday of Eugenio María de Hostos |
| 2031-01-13 | Togolese Republic | Liberation Day |
| 2031-01-14 | Bosnia and Herzegovina | Orthodox New Year |
| 2031-01-14 | Malaysia | Yang di-Pertuan Besar of Negeri Sembilan's Birthday |
| 2031-01-14 | Tunisia | عيد الثورة و الشباب |
| 2031-01-14 | Venezuela | Día de La Divina Pastora |
| 2031-01-15 | Malawi | John Chilembwe Day |
| 2031-01-15 |  Iran | Martyrdom of Imam Ali |
| 2031-01-16 | Democratic Republic of the Congo | Anniversary of President Laurent Kabila |
| 2031-01-17 | Democratic Republic of the Congo | Anniversary of Prime Minister Patrice Emery Lumumba |
| 2031-01-17 | The Gambia | Lailat al-Qadr |
| 2031-01-19 | Eritrea | Epiphany |
| 2031-01-19 | Ethiopia | Epiphany |
| 2031-01-19 | Georgia | Orthodox Epiphany |
| 2031-01-20 | American Samoa | Martin Luther King Jr. Day |
| 2031-01-20 | Brazil | Dia de São Sebastião |
| 2031-01-20 | Cape Verde | Heroes' Day |
| 2031-01-20 | Guam | Martin Luther King Jr. Day |
| 2031-01-20 | Guinea-Bissau | Heroes Day |
| 2031-01-20 | Republic of Mali | Army Day |
| 2031-01-20 | New Zealand | Provincial anniversary day |
| 2031-01-20 | Puerto Rico | Martin Luther King Jr. Day |
| 2031-01-20 | United States of America | Robert E. Lee/Martin Luther King Birthday (AL) |
| 2031-01-20 | United States of America | Martin Luther King Jr. Day |
| 2031-01-20 | United States of America | Dr. Martin Luther King Jr./ Civil Rights Day (AZ) |
| 2031-01-20 | United States of America | Dr. Martin Luther King Jr./Robert E. Lee's Birthdays (AR) |
| 2031-01-20 | United States of America | Martin Luther King, Jr./ Idaho Human Rights Day (ID) |
| 2031-01-20 | United States of America | Martin Luther King's and Robert E. Lee's Birthdays (MS) |
| 2031-01-20 | United States of America | Martin Luther King, Jr./ Civil Rights Day (NH) |
| 2031-01-20 | U.S. Virgin Islands | Martin Luther King Jr. Day |
| 2031-01-21 | Barbados | Errol Barrow Day |
| 2031-01-21 | Dominican Republic | Our Lady of Altagracia |
| 2031-01-21 | Republic of Côte d'Ivoire | Laylat al-Qadr |
| 2031-01-21 | Guinea | Laylat al-Qadr |
| 2031-01-21 | Republic of the Niger | Laylat al-Qadr |
| 2031-01-22 | Bolivia | Plurinational State Foundation Day |
| 2031-01-22 | China | Spring Festival |
| 2031-01-22 | Taiwan | Chinese New Year's Eve |
| 2031-01-22 | Vietnam | Vietnamese New Year Holidays |
| 2031-01-23 | Brunei | Chinese New Year |
| 2031-01-23 | Cocos (Keeling) Islands | Chinese New Year |
| 2031-01-23 | China | Spring Festival |
| 2031-01-23 | Christmas Island | Chinese New Year |
| 2031-01-23 | Hong Kong | Lunar New Year |
| 2031-01-23 | Indonesia | Chinese New Year |
| 2031-01-23 | South Korea | Korean New Year |
| 2031-01-23 | Malaysia | Chinese New Year |
| 2031-01-23 | Singapore | Chinese New Year |
| 2031-01-23 | Suriname | Chinese New Year |
| 2031-01-23 | Taiwan | Chinese New Year |
| 2031-01-23 | Vietnam | Vietnamese New Year |
| 2031-01-24 | Cocos (Keeling) Islands | Chinese New Year (2nd Day) |
| 2031-01-24 | China | Spring Festival |
| 2031-01-24 | Hong Kong | The second day of the Lunar New Year |
| 2031-01-24 | Malaysia | Chinese New Year |
| 2031-01-24 | Romania | Unification Day |
| 2031-01-24 | Singapore | Chinese New Year |
| 2031-01-24 | Taiwan | The second day of the Chinese New Year |
| 2031-01-24 | Jordan | Eid al-Fitr (estimated) |
| 2031-01-24 | Kuwait | Eid al-Fitr (estimated) |
| 2031-01-24 |  Saudi Arabia | Eid al-Fitr Holiday (estimated) |
| 2031-01-24 | Timor Leste | Eid al-Fitr (estimated) |
| 2031-01-24 | Uzbekistan | Eid al-Fitr (estimated) |
| 2031-01-24 | United Arab Emirates | End of Ramadan (Eid al-Fitr) |
| 2031-01-24 | Albania | End of Ramadan (Eid al-Fitr) |
| 2031-01-24 | Azerbaijan | End of Ramadan (Eid al-Fitr) |
| 2031-01-24 | Bosnia and Herzegovina | End of Ramadan (Eid al-Fitr) |
| 2031-01-24 |  People's Republic of Bangladesh | End of Ramadan (Eid al-Fitr) |
| 2031-01-24 | Burkina Faso | End of Ramadan (Eid al-Fitr) |
| 2031-01-24 | Bahrain | End of Ramadan (Eid al-Fitr) |
| 2031-01-24 | Burundi | End of Ramadan (Eid al-Fitr) |
| 2031-01-24 | Benin | End of Ramadan (Eid al-Fitr) |
| 2031-01-24 | Brunei | End of Ramadan (Eid al-Fitr) |
| 2031-01-24 | Cocos (Keeling) Islands | Hari Raya Puasa |
| 2031-01-24 | Central African Republic | End of Ramadan (Eid al-Fitr) |
| 2031-01-24 | Republic of Côte d'Ivoire | End of Ramadan (Eid al-Fitr) |
| 2031-01-24 | Cameroon | End of Ramadan (Eid al-Fitr) |
| 2031-01-24 | Christmas Island | End of Ramadan (Eid al-Fitr) |
| 2031-01-24 | Djibouti | End of Ramadan (Eid al-Fitr) |
| 2031-01-24 | Algeria | End of Ramadan (Eid al-Fitr) |
| 2031-01-24 | Egypt | End of Ramadan (Eid al-Fitr) |
| 2031-01-24 |  Western Sahara | End of Ramadan (Eid al-Fitr) |
| 2031-01-24 | Eritrea | End of Ramadan (Eid al-Fitr) |
| 2031-01-24 | Spain | End of Ramadan (Eid al-Fitr) |
| 2031-01-24 | Ethiopia | End of Ramadan (Eid al-Fitr) |
| 2031-01-24 | Gabon | End of Ramadan (Eid al-Fitr) |
| 2031-01-24 | Ghana | End of Ramadan (Eid al-Fitr) |
| 2031-01-24 | The Gambia | Korité |
| 2031-01-24 | Guinea | End of Ramadan (Eid al-Fitr) |
| 2031-01-24 | Guinea-Bissau | End of Ramadan (Eid al-Fitr) |
| 2031-01-24 | Indonesia | End of Ramadan (Eid al-Fitr) |
| 2031-01-24 | Iran | End of Ramadan (Eid al-Fitr) |
| 2031-01-24 | Kenya | End of Ramadan (Eid al-Fitr) |
| 2031-01-24 | Comoros | End of Ramadan (Eid al-Fitr) |
| 2031-01-24 |  Libya | End of Ramadan (Eid al-Fitr) |
| 2031-01-24 | Kingdom of Morocco | End of Ramadan (Eid al-Fitr) |
| 2031-01-24 | Montenegro | End of Ramadan (Eid al-Fitr) |
| 2031-01-24 | Madagascar | End of Ramadan (Eid al-Fitr) |
| 2031-01-24 | Macedonia | End of Ramadan (Eid al-Fitr) |
| 2031-01-24 | Republic of Mali | End of Ramadan (Eid al-Fitr) |
| 2031-01-24 | Mauritania | End of Ramadan (Eid al-Fitr) |
| 2031-01-24 | Malawi | Eid al Fitri |
| 2031-01-24 | Malaysia | End of Ramadan (Eid al-Fitr) |
| 2031-01-24 | Republic of the Niger | End of Ramadan (Eid al-Fitr) |
| 2031-01-24 | Nigeria | Id el Fitr |
| 2031-01-24 | Philippines | End of Ramadan (Eid al-Fitr) |
| 2031-01-24 | Rwanda | End of Ramadan (Eid al-Fitr) |
| 2031-01-24 | Sudan | End of Ramadan (Eid al-Fitr) |
| 2031-01-24 | Singapore | Hari Raya Puasa |
| 2031-01-24 | Sierra Leone | Korité |
| 2031-01-24 | Senegal | End of Ramadan (Eid al-Fitr) |
| 2031-01-24 |  Somalia | End of Ramadan (Eid al-Fitr) |
| 2031-01-24 | Suriname | End of Ramadan (Eid al-Fitr) |
| 2031-01-24 | Chad | End of Ramadan (Eid al-Fitr) |
| 2031-01-24 | Tunisia | End of Ramadan (Eid al-Fitr) |
| 2031-01-24 | Turkey | End of Ramadan (Eid al-Fitr) |
| 2031-01-24 | Trinidad & Tobago | End of Ramadan (Eid al-Fitr) |
| 2031-01-24 | Tanzania | End of Ramadan (Eid al-Fitr) |
| 2031-01-24 | Uganda | End of Ramadan (Eid al-Fitr) |
| 2031-01-24 | Kosovo | End of Ramadan (Eid al-Fitr) |
| 2031-01-25 | Aruba | Betico Croes Day |
| 2031-01-25 | Brazil | City Birthday |
| 2031-01-25 | Egypt | National Police Day |
| 2031-01-25 | Egypt | Revolution Day 2011 |
| 2031-01-25 | Hong Kong | The third day of the Lunar New Year |
| 2031-01-25 | Taiwan | The third day of the Chinese New Year |
| 2031-01-25 | Jordan | Eid al-Fitr Holiday (estimated) |
| 2031-01-25 | Kuwait | Eid al-Fitr Holiday (estimated) |
| 2031-01-25 | Saudi Arabia | Eid al-Fitr Holiday (estimated) |
| 2031-01-25 | Azerbaijan | End of Ramadan (Eid al-Fitr) |
| 2031-01-25 | Indonesia | End of Ramadan (Eid al-Fitr) |
| 2031-01-25 | Iran | Holyday for Fetr Eeid |
| 2031-01-25 | Malaysia | End of Ramadan (Eid al-Fitr) |
| 2031-01-25 | South Sudan | End of Ramadan (Eid al-Fitr) |
| 2031-01-25 | Togolese Republic | End of Ramadan (Eid al-Fitr) |
| 2031-01-26 | Cocos (Keeling) Islands | Australia Day |
| 2031-01-26 | Christmas Island | Australia Day |
| 2031-01-26 | Dominican Republic | Duarte's Birthday |
| 2031-01-26 | Taiwan | The forth day of the Chinese New Year |
| 2031-01-26 | Uganda | Liberation Day |
| 2031-01-26 | Jordan | Eid al-Fitr Holiday (estimated) |
| 2031-01-26 | Kuwait | Eid al-Fitr Holiday (estimated) |
| 2031-01-26 | Saudi Arabia | Eid al-Fitr Holiday (estimated) |
| 2031-01-27 | Australia | Australia Day |
| 2031-01-27 | Hong Kong | The third day of the Lunar New Year |
| 2031-01-27 | Cayman Islands | National Heroes Day |
| 2031-01-27 | Monaco | Saint Devota's Day |
| 2031-01-27 | New Zealand | Provincial anniversary day |
| 2031-01-27 | Taiwan | Chinese New Year Holiday |
| 2031-01-27 | Saudi Arabia | Eid al-Fitr Holiday (estimated) |
| 2031-01-27 | Azerbaijan | End of Ramadan (Eid al-Fitr) (substitute day) |
| 2031-01-28 | Armenia | Army Day |
| 2031-01-28 | Saudi Arabia | Eid al-Fitr Holiday (observed, estimated) |
| 2031-01-29 | Saudi Arabia | Eid al-Fitr Holiday (observed, estimated) |
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