| Date | Country | Holiday name |
|---|---|---|
| 2005-01-01 |  Andorra | New Year's Day |
| 2005-01-01 |  United Arab Emirates | New Year's Day |
| 2005-01-01 |  Antigua & Barbuda | New Year's Day |
| 2005-01-01 |  Anguilla | New Year's Day |
| 2005-01-01 |  Albania | New Year's Day |
| 2005-01-01 |  Armenia | New Year's Day |
| 2005-01-01 |  Angola | New Year's Day |
| 2005-01-01 |  Argentina | New Year's Day |
| 2005-01-01 |  American Samoa | New Year's Day |
| 2005-01-01 |  Austria | New Year's Day |
| 2005-01-01 |  Australia | New Year's Day |
| 2005-01-01 |  Aruba | New Year's Day |
| 2005-01-01 |  Åland Islands | New Year's Day |
| 2005-01-01 |  Azerbaijan | New Year's Day |
| 2005-01-01 |  Bosnia and Herzegovina | New Year's Day |
| 2005-01-01 |  Barbados | New Year's Day |
| 2005-01-01 |  Belgium | New Year's Day |
| 2005-01-01 |  Burkina Faso | New Year's Day |
| 2005-01-01 |  Bulgaria | New Year's Day |
| 2005-01-01 |  Bahrain | New Year's Day |
| 2005-01-01 |  Burundi | New Year's Day |
| 2005-01-01 |  Benin | New Year's Day |
| 2005-01-01 |  St. Barths | New Year's Day |
| 2005-01-01 |  Bermuda | New Year's Day |
| 2005-01-01 |  Brunei | New Year's Day |
| 2005-01-01 |  Bolivia | New Year's Day |
| 2005-01-01 |  Caribbean Netherlands | New Year's Day |
| 2005-01-01 |  Brazil | New Year's Day |
| 2005-01-01 |  Bahamas | New Year's Day |
| 2005-01-01 |  Botswana | New Year's Day |
| 2005-01-01 |  Belarus | New Year's Day |
| 2005-01-01 |  Belize | New Year's Day |
| 2005-01-01 |  Canada | New Year's Day |
| 2005-01-01 |  Cocos (Keeling) Islands | New Year's Day |
| 2005-01-01 |  Democratic Republic of the Congo | New Year's Day |
| 2005-01-01 |  Central African Republic | New Year's Day |
| 2005-01-01 |  Republic of the Congo | New Year's Day |
| 2005-01-01 |  Switzerland | New Year's Day |
| 2005-01-01 |  Republic of Côte d'Ivoire | New Year's Day |
| 2005-01-01 |  Cook Islands | New Year's Day |
| 2005-01-01 |  Chile | New Year's Day |
| 2005-01-01 |  Cameroon | New Year's Day |
| 2005-01-01 |  China | New Year's Day |
| 2005-01-01 |  Colombia | New Year's Day |
| 2005-01-01 |  Costa Rica | New Year's Day |
| 2005-01-01 |  Cuba | Triumph of the Revolution |
| 2005-01-01 |  Cape Verde | New Year's Day |
| 2005-01-01 |  Curaçao | New Year's Day |
| 2005-01-01 |  Christmas Island | New Year's Day |
| 2005-01-01 |  Cyprus | New Year's Day |
| 2005-01-01 |  Czech Republic | New Year's Day |
| 2005-01-01 |  Germany | New Year's Day |
| 2005-01-01 |  Djibouti | New Year's Day |
| 2005-01-01 |  Denmark | New Year's Day |
| 2005-01-01 |  Dominica | New Year's Day |
| 2005-01-01 |  Dominican Republic | New Year's Day |
| 2005-01-01 |  Algeria | New Year's Day |
| 2005-01-01 |  Ecuador | New Year's Day |
| 2005-01-01 |  Estonia | New Year's Day |
| 2005-01-01 |  Eritrea | New Year's Day |
| 2005-01-01 |  Spain | New Year's Day |
| 2005-01-01 |  Finland | New Year's Day |
| 2005-01-01 |  Fiji | New Year's Day |
| 2005-01-01 |  Faroe Islands | New Year's Day |
| 2005-01-01 |  France | New Year's Day |
| 2005-01-01 |  Gabon | New Year's Day |
| 2005-01-01 |  United Kingdom | New Year's Day |
| 2005-01-01 |  Grenada | New Year's Day |
| 2005-01-01 |  Georgia | New Year's Day |
| 2005-01-01 |  French Guiana | New Year's Day |
| 2005-01-01 |  Guernsey | New Year's Day |
| 2005-01-01 |  Ghana | New Year's Day |
| 2005-01-01 |  Gibraltar | New Year's Day |
| 2005-01-01 |  Greenland | New Year's Day |
| 2005-01-01 |  The Gambia | New Year's Day |
| 2005-01-01 |  Guinea | New Year's Day |
| 2005-01-01 |  Guadeloupe | New Year's Day |
| 2005-01-01 |  Republic of Equatorial Guinea | New Year's Day |
| 2005-01-01 |  Greece | New Year's Day |
| 2005-01-01 |  Guatemala | New Year's Day |
| 2005-01-01 |  Guam | New Year's Day |
| 2005-01-01 |  Guinea-Bissau | New Year's Day |
| 2005-01-01 |  Guyana | New Year's Day |
| 2005-01-01 |  Hong Kong | New Year's Day |
| 2005-01-01 |  Honduras | New Year's Day |
| 2005-01-01 |  Croatia | New Year's Day |
| 2005-01-01 |  Haiti | Independence Day |
| 2005-01-01 |  Hungary | New Year's Day |
| 2005-01-01 | Canary Islands | New Year's Day |
| 2005-01-01 |  Indonesia | New Year's Day |
| 2005-01-01 |  Ireland | New Year's Day |
| 2005-01-01 |  Isle of Man | New Year's Day |
| 2005-01-01 |  Iceland | New Year's Day |
| 2005-01-01 |  Italia | New Year's Day |
| 2005-01-01 |  Jersey | New Year's Day |
| 2005-01-01 |  Jamaica | New Year's Day |
| 2005-01-01 |  Japan | New Year's Day |
| 2005-01-01 |  Kenya | New Year's Day |
| 2005-01-01 |  Comoros | New Year's Day |
| 2005-01-01 |  St. Kitts & Nevis | New Year's Day |
| 2005-01-01 |  South Korea | New Year's Day |
| 2005-01-01 |  Cayman Islands | New Year's Day |
| 2005-01-01 |  St. Lucia | New Year's Day |
| 2005-01-01 |  Lichtenstein | New Year's Day |
| 2005-01-01 |  Liberia | New Year's Day |
| 2005-01-01 |  Lesotho | New Year's Day |
| 2005-01-01 |  Lithuania | New Year's Day |
| 2005-01-01 |  Luxembourg | New Year's Day |
| 2005-01-01 |  Latvia | New Year's Day |
| 2005-01-01 |  Kingdom of Morocco | New Year's Day |
| 2005-01-01 |  Monaco | New Year's Day |
| 2005-01-01 |  Moldova | New Year's Day |
| 2005-01-01 |  Montenegro | New Year's Day |
| 2005-01-01 |  St. Martin | New Year's Day |
| 2005-01-01 |  Madagascar | New Year's Day |
| 2005-01-01 |  Macedonia | New Year's Day |
| 2005-01-01 |  Republic of Mali | New Year's Day |
| 2005-01-01 |  Martinique | New Year's Day |
| 2005-01-01 |  Mauritania | New Year's Day |
| 2005-01-01 |  Montserrat | New Year's Day |
| 2005-01-01 |  Malta | New Year's Day |
| 2005-01-01 |  Malawi | New Year's Day |
| 2005-01-01 |  Mexico | New Year's Day |
| 2005-01-01 |  Malaysia | New Year's Day |
| 2005-01-01 |  Mozambique | New Year's Day |
| 2005-01-01 |  Namibia | New Year's Day |
| 2005-01-01 |  New Caledonia | Jour de l'an |
| 2005-01-01 |  Republic of the Niger | New Year's Day |
| 2005-01-01 |  Nigeria | New Year's Day |
| 2005-01-01 |  Nicaragua | New Year's Day |
| 2005-01-01 |  Netherlands | New Year's Day |
| 2005-01-01 |  Norway | New Year's Day |
| 2005-01-01 |  New Zealand | New Year's Day |
| 2005-01-01 |  Panama | New Year's Day |
| 2005-01-01 |  Peru | New Year's Day |
| 2005-01-01 |  Philippines | New Year's Day |
| 2005-01-01 |  Poland | New Year's Day |
| 2005-01-01 |  St. Pierre & Miquelon | New Year's Day |
| 2005-01-01 |  Puerto Rico | New Year's Day |
| 2005-01-01 |  Portugal | New Year's Day |
| 2005-01-01 |  Paraguay | New Year's Day |
| 2005-01-01 |  Réunion | New Year's Day |
| 2005-01-01 |  Romania | New Year's Day |
| 2005-01-01 |  Serbia | New Year's Day |
| 2005-01-01 |  Russia | New Year's Day |
| 2005-01-01 |  Rwanda | New Year's Day |
| 2005-01-01 |  Seychelles | New Year's Day |
| 2005-01-01 |  Sudan | Independence Day |
| 2005-01-01 |  Sweden | New Year's Day |
| 2005-01-01 |  Singapore | New Year's Day |
| 2005-01-01 |  St. Helena | New Year's Day |
| 2005-01-01 |  Slovenia | New Year's Day |
| 2005-01-01 |  Svalbard & Jan Mayen | New Year's Day |
| 2005-01-01 |  Slovakia | New Year's Day |
| 2005-01-01 |  Sierra Leone | New Year's Day |
| 2005-01-01 |  San Marino | New Year's Day |
| 2005-01-01 |  Senegal | New Year's Day |
| 2005-01-01 |  Suriname | New Year's Day |
| 2005-01-01 |  South Sudan | New Year's Day |
| 2005-01-01 |  São Tomé & Príncipe | New Year's Day |
| 2005-01-01 |  Sint Maarten | New Year's Day |
| 2005-01-01 |  Swaziland | New Year's Day |
| 2005-01-01 |  Turks & Caicos Islands | New Year's Day |
| 2005-01-01 |  Chad | New Year's Day |
| 2005-01-01 |  Togolese Republic | New Year's Day |
| 2005-01-01 |  Thailand | New Year's Day |
| 2005-01-01 |  Tunisia | New Year's Day |
| 2005-01-01 |  Tonga | New Year's Day |
| 2005-01-01 |  Turkey | New Year's Day |
| 2005-01-01 |  Trinidad & Tobago | New Year's Day |
| 2005-01-01 |  Taiwan | Founding of the Republic of China |
| 2005-01-01 |  Tanzania | New Year's Day |
| 2005-01-01 |  Ukraine | New Year |
| 2005-01-01 |  Uganda | New Year's Day |
| 2005-01-01 |  United States of America | New Year's Day |
| 2005-01-01 |  Uruguay | New Year's Day |
| 2005-01-01 |  Vatican City | Solemnity of Mary, Mother of God |
| 2005-01-01 |  St. Vincent & Grenadines | New Year's Day |
| 2005-01-01 |  Venezuela | New Year's Day |
| 2005-01-01 |  British Virgin Islands | New Year's Day |
| 2005-01-01 |  U.S. Virgin Islands | New Year's Day |
| 2005-01-01 |  Vietnam | New Year's Day |
| 2005-01-01 |  Vanuatu | New Year's Day |
| 2005-01-01 |  Kosovo | New Year's Day |
| 2005-01-01 |  Mayotte | New Year's Day |
| 2005-01-01 |  South Africa | New Year's Day |
| 2005-01-01 |  Zambia | New Year's Day |
| 2005-01-01 |  Zimbabwe | New Year's Day |
| 2005-01-01 |  Cambodia | International New Year Day |
| 2005-01-01 |  Jordan | New Year's Day |
| 2005-01-01 |  Kazakhstan | New Year's Day |
| 2005-01-01 |  Kuwait | New Year's Day |
| 2005-01-01 |  Laos | New Year's Day |
| 2005-01-01 |  Uzbekistan | New Year's Day |
| 2005-01-01 |  Pakistan | New Year's Day |
| 2005-01-01 |  Papua New Guinea | New Year's Day |
| 2005-01-02 | Albania | New Year Holiday |
| 2005-01-02 | Azerbaijan | New Year's Day |
| 2005-01-02 | Bosnia and Herzegovina | 2nd day of the New Year |
| 2005-01-02 | Botswana | New Year's Holiday |
| 2005-01-02 | Switzerland | 2 Janvier (JU) |
| 2005-01-02 | Cook Islands | Day after New Year's Day |
| 2005-01-02 | Cuba | Victory of Armed Forces Day |
| 2005-01-02 | United Kingdom | January 2nd |
| 2005-01-02 | Georgia | Bedoba |
| 2005-01-02 | Haiti | Ancestry Day |
| 2005-01-02 | St. Kitts & Nevis | Carnival Day |
| 2005-01-02 | St. Lucia | Second New Year's Day |
| 2005-01-02 | Montenegro | New Year's Day |
| 2005-01-02 | New Zealand | Day after New Year's Day |
| 2005-01-02 | Russia | New Year Holiday |
| 2005-01-02 | Rwanda | Public Holiday |
| 2005-01-02 | Tanzania | Zanzibar Revolution Day |
| 2005-01-02 | Ukraine | New Year |
| 2005-01-02 | Kazakhstan | New Year's Day |
| 2005-01-03 | Albania | New Year Holiday (substitute day) |
| 2005-01-03 | Armenia | Pre-Christmas holidays |
| 2005-01-03 | Australia | New Year's Day |
| 2005-01-03 | Azerbaijan | New Year's Day (substitute day) |
| 2005-01-03 | Bosnia and Herzegovina | 2nd day of the New Year (substitute day) |
| 2005-01-03 | Burkina Faso | Anniversary of the 1966 Upper Voltan coup d'état |
| 2005-01-03 | Cook Islands | New Year's Day (substitute day) |
| 2005-01-03 | United Kingdom | New Year's Day (substitute day) |
| 2005-01-03 | United Kingdom | January 2nd (substitute day) (SCT) |
| 2005-01-03 | Guernsey | New Year's Day (substitute day) |
| 2005-01-03 | Ghana | New Year's Day (substitute day) |
| 2005-01-03 | Gibraltar | New Year's Day (substitute day) |
| 2005-01-03 | Isle of Man | New Year's Day (substitute day) |
| 2005-01-03 | Jersey | New Year's Day (substitute day) |
| 2005-01-03 | St. Kitts & Nevis | New Year's Day (substitute day) |
| 2005-01-03 | Cayman Islands | New Year's Day (substitute day) |
| 2005-01-03 | Montenegro | New Year's Day (substitute day) |
| 2005-01-03 | Montserrat | New Year's Day (substitute day) |
| 2005-01-03 | Malawi | New Year's Day (substitute day) |
| 2005-01-03 | New Zealand | New Year's Day (substitute day) |
| 2005-01-03 | Serbia | New Year's Day |
| 2005-01-03 | St. Helena | New Year's Day (substitute day) |
| 2005-01-03 | Turks & Caicos Islands | New Year's Day |
| 2005-01-03 | Ukraine | New Year (substitute day) |
| 2005-01-03 | Kazakhstan | New Year's Day (observed) |
| 2005-01-04 | Azerbaijan | New Year's Day (substitute day) |
| 2005-01-04 | Democratic Republic of the Congo | Day of the Martyrs |
| 2005-01-04 | Cook Islands | Day after New Year's Day (substitute day) |
| 2005-01-04 | United Kingdom | New Year's Day (substitute day) |
| 2005-01-04 | New Zealand | Day after New Year's Day (substitute day) |
| 2005-01-04 | Ukraine | New Year (substitute day) |
| 2005-01-04 | Kazakhstan | New Year's Day (observed) |
| 2005-01-06 | Andorra | Epiphany |
| 2005-01-06 | Armenia | Christmas Day |
| 2005-01-06 | Austria | Epiphany |
| 2005-01-06 | Åland Islands | Epiphany |
| 2005-01-06 | Bosnia and Herzegovina | Epiphany |
| 2005-01-06 | Switzerland | Epiphany |
| 2005-01-06 | Cyprus | Epiphany |
| 2005-01-06 | Germany | Epiphany |
| 2005-01-06 | Spain | Epiphany |
| 2005-01-06 |  Ethiopia | Christmas Day |
| 2005-01-06 | Finland | Epiphany |
| 2005-01-06 | Greenland | Epiphany |
| 2005-01-06 | Greece | Epiphany |
| 2005-01-06 | Croatia | Epiphany |
| 2005-01-06 | Canary Islands | Epiphany |
| 2005-01-06 | Italia | Epiphany |
| 2005-01-06 | Lichtenstein | Epiphany |
| 2005-01-06 | Montenegro | Christmas Eve |
| 2005-01-06 | Poland | Epiphany |
| 2005-01-06 | Puerto Rico | Epiphany |
| 2005-01-06 | Sweden | Epiphany |
| 2005-01-06 | Slovakia | Epiphany |
| 2005-01-06 | San Marino | Epiphany |
| 2005-01-06 | Vatican City | Epiphany |
| 2005-01-06 | U.S. Virgin Islands | Three Kings Day |
| 2005-01-07 | Bosnia and Herzegovina | Orthodox Christmas |
| 2005-01-07 | Belarus | Christmas Day |
| 2005-01-07 |  Egypt | Christmas Day |
| 2005-01-07 | Eritrea | Orthodox Christmas |
| 2005-01-07 | Georgia | Orthodox Christmas |
| 2005-01-07 | Moldova | Orthodox Christmas |
| 2005-01-07 | Montenegro | Christmas Day |
| 2005-01-07 | Macedonia | Orthodox Christmas |
| 2005-01-07 | Serbia | Orthodox Christmas |
| 2005-01-07 | Russia | Christmas Day |
| 2005-01-07 | Sudan | Coptic Christmas |
| 2005-01-07 | Ukraine | Orthodox Christmas |
| 2005-01-07 | Kosovo | Orthodox Christmas |
| 2005-01-07 | Cambodia | Day of Victory over the Genocidal Regime |
| 2005-01-08 | Montenegro | Boxing Day |
| 2005-01-08 | Russia | New Year Holiday |
| 2005-01-09 | Bosnia and Herzegovina | Republic Day |
| 2005-01-09 | Panama | Martyrs' Day |
| 2005-01-09 | South Sudan | Peace Agreement Day |
| 2005-01-10 | Benin | Fête du Vodoun |
| 2005-01-10 | Bahamas | Majority Rule Day |
| 2005-01-10 | Colombia | Epiphany |
| 2005-01-10 | Dominican Republic | Epiphany |
| 2005-01-10 | Japan | Coming of Age Day |
| 2005-01-10 | Panama | Martyrs' Day (substitute day) |
| 2005-01-10 | Puerto Rico | Birthday of Eugenio María de Hostos |
| 2005-01-11 | Kingdom of Morocco | Anniversary of the Independence Manifesto |
| 2005-01-12 | Brazil | Dia do evangélico |
| 2005-01-12 | Algeria | Amazigh New Year |
| 2005-01-13 | Cape Verde | Democracy Day |
| 2005-01-13 | Togolese Republic | Liberation Day |
| 2005-01-14 | Bosnia and Herzegovina | Orthodox New Year |
| 2005-01-14 | Malaysia | Yang di-Pertuan Besar of Negeri Sembilan's Birthday |
| 2005-01-14 | Tunisia | عيد الثورة و الشباب |
| 2005-01-14 | United States of America | Lee–Jackson Day |
| 2005-01-14 | Venezuela | Día de La Divina Pastora |
| 2005-01-15 | Malawi | John Chilembwe Day |
| 2005-01-16 | Democratic Republic of the Congo | Anniversary of President Laurent Kabila |
| 2005-01-17 | American Samoa | Martin Luther King Jr. Day |
| 2005-01-17 | Democratic Republic of the Congo | Anniversary of Prime Minister Patrice Emery Lumumba |
| 2005-01-17 | Guam | Martin Luther King Jr. Day |
| 2005-01-17 | Malawi | John Chilembwe Day (substitute day) |
| 2005-01-17 | Puerto Rico | Martin Luther King Jr. Day |
| 2005-01-17 | United States of America | Robert E. Lee/Martin Luther King Birthday (AL) |
| 2005-01-17 | United States of America | Martin Luther King Jr. Day |
| 2005-01-17 | United States of America | Dr. Martin Luther King Jr./ Civil Rights Day (AZ) |
| 2005-01-17 | United States of America | Dr. Martin Luther King Jr./Robert E. Lee's Birthdays (AR) |
| 2005-01-17 | United States of America | Martin Luther King, Jr./ Idaho Human Rights Day (ID) |
| 2005-01-17 | United States of America | Martin Luther King's and Robert E. Lee's Birthdays (MS) |
| 2005-01-17 | United States of America | Martin Luther King, Jr./ Civil Rights Day (NH) |
| 2005-01-17 | U.S. Virgin Islands | Martin Luther King Jr. Day |
| 2005-01-18 | Democratic Republic of the Congo | Anniversary of President Laurent Kabila (substitute day) |
| 2005-01-19 | Eritrea | Epiphany |
| 2005-01-19 | Ethiopia | Epiphany |
| 2005-01-19 | Georgia | Orthodox Epiphany |
| 2005-01-20 | Brazil | Dia de São Sebastião |
| 2005-01-20 | Cape Verde | Heroes' Day |
| 2005-01-20 | Guinea-Bissau | Heroes Day |
| 2005-01-20 | Republic of Mali | Army Day |
| 2005-01-20 | Jordan | Arafat Day (estimated) |
| 2005-01-20 | Kuwait | Arafat Day (estimated) |
| 2005-01-20 |  Saudi Arabia | Arafat Day (estimated) |
| 2005-01-20 | Bahrain | Arafat Day |
| 2005-01-20 | Djibouti | Arafat Day |
| 2005-01-20 | Spain | Arafat Day |
| 2005-01-20 |  Libya | Arafat Day |
| 2005-01-20 | Malaysia | Arafat Day |
| 2005-01-21 | Barbados | Errol Barrow Day |
| 2005-01-21 | Dominican Republic | Our Lady of Altagracia |
| 2005-01-21 | Jordan | Eid al-Adha (estimated) |
| 2005-01-21 | Kuwait | Eid al-Adha (estimated) |
| 2005-01-21 | Saudi Arabia | Eid al-Adha Holiday (estimated) |
| 2005-01-21 | Uzbekistan | Eid al-Adha (estimated) |
| 2005-01-21 | Pakistan | Eid al-Adha |
| 2005-01-21 | United Arab Emirates | Feast of the Sacrifice (Eid al-Adha) |
| 2005-01-21 | Albania | Feast of the Sacrifice (Eid al-Adha) |
| 2005-01-21 | Azerbaijan | Feast of the Sacrifice (Eid al-Adha) |
| 2005-01-21 | Bosnia and Herzegovina | Feast of the Sacrifice (Eid al-Adha) |
| 2005-01-21 |  People's Republic of Bangladesh | Feast of the Sacrifice (Eid al-Adha) |
| 2005-01-21 | Burkina Faso | Feast of the Sacrifice (Eid al-Adha) |
| 2005-01-21 | Bahrain | Feast of the Sacrifice (Eid al-Adha) |
| 2005-01-21 | Burundi | Feast of the Sacrifice (Eid al-Adha) |
| 2005-01-21 | Benin | Feast of the Sacrifice (Eid al-Adha) |
| 2005-01-21 | Brunei | Feast of the Sacrifice (Eid al-Adha) |
| 2005-01-21 | Cocos (Keeling) Islands | Hari Raya Haji |
| 2005-01-21 | Central African Republic | Feast of the Sacrifice (Eid al-Adha) |
| 2005-01-21 | Republic of Côte d'Ivoire | Feast of the Sacrifice (Eid al-Adha) |
| 2005-01-21 | Cameroon | Feast of the Sacrifice (Eid al-Adha) |
| 2005-01-21 | Christmas Island | Feast of the Sacrifice (Eid al-Adha) |
| 2005-01-21 | Djibouti | Feast of the Sacrifice (Eid al-Adha) |
| 2005-01-21 | Algeria | Feast of the Sacrifice (Eid al-Adha) |
| 2005-01-21 | Egypt | Feast of the Sacrifice (Eid al-Adha) |
| 2005-01-21 |  Western Sahara | Feast of the Sacrifice (Eid al-Adha) |
| 2005-01-21 | Eritrea | Feast of the Sacrifice (Eid al-Adha) |
| 2005-01-21 | Spain | Feast of the Sacrifice (Eid al-Adha) |
| 2005-01-21 | Ethiopia | Feast of the Sacrifice (Eid al-Adha) |
| 2005-01-21 | Gabon | Feast of the Sacrifice (Eid al-Adha) |
| 2005-01-21 | Ghana | Feast of the Sacrifice (Eid al-Adha) |
| 2005-01-21 | The Gambia | Tabaski |
| 2005-01-21 | Guinea | Feast of the Sacrifice (Eid al-Adha) |
| 2005-01-21 | Guinea-Bissau | Feast of the Sacrifice (Eid al-Adha) |
| 2005-01-21 | Guyana | Eid Ul Adha |
| 2005-01-21 | Indonesia | Feast of the Sacrifice (Eid al-Adha) |
| 2005-01-21 |  Iran | Feast of the Sacrifice (Eid al-Adha) |
| 2005-01-21 | Kenya | Feast of the Sacrifice (Eid al-Adha) |
| 2005-01-21 | Comoros | Feast of the Sacrifice (Eid al-Adha) |
| 2005-01-21 | Libya | Feast of the Sacrifice (Eid al-Adha) |
| 2005-01-21 | Kingdom of Morocco | Feast of the Sacrifice (Eid al-Adha) |
| 2005-01-21 | Montenegro | Feast of the Sacrifice (Eid al-Adha) |
| 2005-01-21 | Madagascar | Feast of the Sacrifice (Eid al-Adha) |
| 2005-01-21 | Republic of Mali | Feast of the Sacrifice (Eid al-Adha) |
| 2005-01-21 | Mauritania | Feast of the Sacrifice (Eid al-Adha) |
| 2005-01-21 | Malaysia | Feast of the Sacrifice (Eid al-Adha) |
| 2005-01-21 | Republic of the Niger | Feast of the Sacrifice (Eid al-Adha) |
| 2005-01-21 | Nigeria | Id el Kabir |
| 2005-01-21 | Philippines | Feast of the Sacrifice (Eid al-Adha) |
| 2005-01-21 | Rwanda | Feast of the Sacrifice (Eid al-Adha) |
| 2005-01-21 | Sudan | Feast of the Sacrifice (Eid al-Adha) |
| 2005-01-21 | Singapore | Hari Raya Haji |
| 2005-01-21 | Sierra Leone | Tabaski |
| 2005-01-21 | Senegal | Feast of the Sacrifice (Eid al-Adha) |
| 2005-01-21 |  Somalia | Feast of the Sacrifice (Eid al-Adha) |
| 2005-01-21 | Suriname | Feast of the Sacrifice (Eid al-Adha) |
| 2005-01-21 | Chad | Feast of the Sacrifice (Eid al-Adha) |
| 2005-01-21 | Tunisia | Feast of the Sacrifice (Eid al-Adha) |
| 2005-01-21 | Turkey | Feast of the Sacrifice (Eid al-Adha) |
| 2005-01-21 | Tanzania | Feast of the Sacrifice (Eid al-Adha) |
| 2005-01-21 | Uganda | Feast of the Sacrifice (Eid al-Adha) |
| 2005-01-21 | Kosovo | Feast of the Sacrifice (Eid al-Adha) |
| 2005-01-22 | Bolivia | Plurinational State Foundation Day |
| 2005-01-22 | Jordan | Eid al-Adha Holiday (estimated) |
| 2005-01-22 | Kuwait | Eid al-Adha Holiday (estimated) |
| 2005-01-22 | Saudi Arabia | Eid al-Adha Holiday (estimated) |
| 2005-01-22 | Pakistan | Eid al-Adha Holiday |
| 2005-01-22 | Azerbaijan | Feast of the Sacrifice (Eid al-Adha) |
| 2005-01-22 | Malaysia | Feast of the Sacrifice (Eid al-Adha) |
| 2005-01-22 | Togolese Republic | Feast of the Sacrifice (Eid al-Adha) |
| 2005-01-23 | Jordan | Eid al-Adha Holiday (estimated) |
| 2005-01-23 | Kuwait | Eid al-Adha Holiday (estimated) |
| 2005-01-23 | Saudi Arabia | Eid al-Adha Holiday (estimated) |
| 2005-01-23 | South Sudan | Feast of the Sacrifice (Eid al-Adha) |
| 2005-01-24 | Dominican Republic | Duarte's Birthday |
| 2005-01-24 | Cayman Islands | National Heroes Day |
| 2005-01-24 | New Zealand | Provincial anniversary day |
| 2005-01-24 | Romania | Unification Day |
| 2005-01-24 | Saudi Arabia | Eid al-Adha Holiday (observed, estimated) |
| 2005-01-24 | Azerbaijan | Feast of the Sacrifice (Eid al-Adha) (substitute day) |
| 2005-01-25 | Aruba | Betico Croes Day |
| 2005-01-25 | Brazil | City Birthday |
| 2005-01-25 | Egypt | National Police Day |
| 2005-01-25 | Saudi Arabia | Eid al-Adha Holiday (observed, estimated) |
| 2005-01-26 | Australia | Australia Day |
| 2005-01-26 | Cocos (Keeling) Islands | Australia Day |
| 2005-01-26 | Christmas Island | Australia Day |
| 2005-01-26 | Uganda | Liberation Day |
| 2005-01-27 | Monaco | Saint Devota's Day |
| 2005-01-28 | Armenia | Army Day |
| 2005-01-29 | Iran | Eid al-Ghadeer |
| 2005-01-31 | New Zealand | Provincial anniversary day |
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