September 2023 Holidays & Observances Worldwide
There is a total of 344 public holidays and observances in September of 2023 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.
All the information displayed below is also available via our API as well as downloadable as a csv. Signup here to get started.
These dates may be modified as official changes are announced, so please check back regularly for updates or sign up for our newsletter to receive regular updates. All updates are automatically added to our API as well.
Our API allows you to specify the State and Region as part of the API requests, thereby limiting the requests to a particular state or city. View the API documentation for a full description of the supported countries, states, and regions.
| Date | Holiday | Location |
|---|---|---|
| Friday, September 1, 2023 | Knowledge and Literature Day | Armenia |
| Friday, September 1, 2023 | Anti War Day | Germany |
| Friday, September 1, 2023 | Commencement Day of Eritrean Armed Struggle | Eritrea |
| Friday, September 1, 2023 | Kirani Day | Grenada |
| Friday, September 1, 2023 | First Day of School Year | Israel |
| Friday, September 1, 2023 | Labor Day | Marshall Islands |
| Friday, September 1, 2023 | Gai Jatra | Nepal |
| Friday, September 1, 2023 | Election Day | Singapore |
| Friday, September 1, 2023 | Constitution Day | Slovakia |
| Friday, September 1, 2023 | Day of Students and Knowledge | Turkmenistan |
| Friday, September 1, 2023 | Independence Day | Uzbekistan |
| Friday, September 1, 2023 | Independence Day Holiday | Vietnam |
| Saturday, September 2, 2023 | Day of the Independent City of Ceuta | Spain |
| Saturday, September 2, 2023 | Army Day | Nicaragua |
| Saturday, September 2, 2023 | Independence Day | Vietnam |
| Sunday, September 3, 2023 | Father's Day | Australia |
| Sunday, September 3, 2023 | Day of the Black Person and Afro-Costa Rican Culture | Costa Rica |
| Sunday, September 3, 2023 | Father's Day | New Zealand |
| Sunday, September 3, 2023 | Yamashita Surrender Day | Philippines |
| Sunday, September 3, 2023 | The Feast of St Marinus and Republic Day | San Marino |
| Sunday, September 3, 2023 | Armed Forces Day | Taiwan |
| Sunday, September 3, 2023 | Independence Day Holiday | Vietnam |
| Monday, September 4, 2023 | Labor Day | American Samoa |
| Monday, September 4, 2023 | Labour Day | Bermuda |
| Monday, September 4, 2023 | Labor Day | Guam |
| Monday, September 4, 2023 | Grand Magal de Touba | Senegal |
| Monday, September 4, 2023 | Umhlanga Reed Dance | Eswatini |
| Monday, September 4, 2023 | World Sexual Health Day | United States |
| Monday, September 4, 2023 | Labor Day | United States |
| Monday, September 4, 2023 | Independence Day observed | Vietnam |
| Tuesday, September 5, 2023 | Mother Teresa Beatification Day | Albania |
| Tuesday, September 5, 2023 | International Day of Charity | United States |
| Wednesday, September 6, 2023 | Janmashtami | Bangladesh |
| Wednesday, September 6, 2023 | Unification Day | Bulgaria |
| Wednesday, September 6, 2023 | Elcano's Day | Spain |
| Wednesday, September 6, 2023 | Janmashtami | Indonesia |
| Wednesday, September 6, 2023 | Janmashtami (Smarta) | India |
| Wednesday, September 6, 2023 | Arbaeen | Iran |
| Wednesday, September 6, 2023 | Janmashtami | Myanmar |
| Wednesday, September 6, 2023 | Gaura Parba | Nepal |
| Wednesday, September 6, 2023 | Shree Krishna Janamashtami | Nepal |
| Wednesday, September 6, 2023 | Chelum | Pakistan |
| Wednesday, September 6, 2023 | Defence Day | Pakistan |
| Wednesday, September 6, 2023 | Armed Forces' Day | Sao Tome and Principe |
| Wednesday, September 6, 2023 | Somhlolo Day | Eswatini |
| Wednesday, September 6, 2023 | Janmashtami (Smarta) | United Kingdom |
| Wednesday, September 6, 2023 | Janmashtami | United States |
| Thursday, September 7, 2023 | Independence Day | Brazil |
| Thursday, September 7, 2023 | Genevese Fast | Switzerland |
| Thursday, September 7, 2023 | Constitution Day | Fiji |
| Thursday, September 7, 2023 | Janmashtami | India |
| Thursday, September 7, 2023 | Victory Day | Mozambique |
| Thursday, September 7, 2023 | Janmashtami | Pakistan |
| Thursday, September 7, 2023 | Faro Day | Portugal |
| Thursday, September 7, 2023 | Janmashtami | United Kingdom |
| Thursday, September 7, 2023 | International Day of Clean Air for Blue Skies | United States |
| Thursday, September 7, 2023 | Still's Disease Awareness Day | United States |
| Thursday, September 7, 2023 | Janmashtami | South Africa |
| Friday, September 8, 2023 | National Day | Andorra |
| Friday, September 8, 2023 | Day of Asturias | Spain |
| Friday, September 8, 2023 | Day of Extremadura | Spain |
| Friday, September 8, 2023 | Virgin of the Victory | Spain |
| Friday, September 8, 2023 | Kosrae Liberation Day | Micronesia |
| Friday, September 8, 2023 | Nativity of Mary | Lebanon |
| Friday, September 8, 2023 | Nativity of Our Lady | Liechtenstein |
| Friday, September 8, 2023 | Independence Day | North Macedonia |
| Friday, September 8, 2023 | Our Lady of Victories | Malta |
| Friday, September 8, 2023 | Feast of the Nativity of Mary | Philippines |
| Friday, September 8, 2023 | International Literacy Day | United States |
| Saturday, September 9, 2023 | Martyrs and Ahmad Shah Masoud Day | Afghanistan |
| Saturday, September 9, 2023 | Knabenschiessen | Switzerland |
| Saturday, September 9, 2023 | Children's Day | Costa Rica |
| Saturday, September 9, 2023 | German Language Day | Germany |
| Saturday, September 9, 2023 | Feast of Prophet Sabalan Eve | Israel |
| Saturday, September 9, 2023 | National Day | North Korea |
| Saturday, September 9, 2023 | Day of the Victims of Holocaust and of racial violence | Slovakia |
| Saturday, September 9, 2023 | Independence Day | Tajikistan |
| Saturday, September 9, 2023 | International Day to Protect Education from Attack | United States |
| Saturday, September 9, 2023 | Carl Garner Federal Lands Cleanup Day | United States |
| Saturday, September 9, 2023 | Native American Day | United States |
| Saturday, September 9, 2023 | California Admission Day | United States |
| Sunday, September 10, 2023 | St. George's Caye Day | Belize |
| Sunday, September 10, 2023 | Knabenschiessen | Switzerland |
| Sunday, September 10, 2023 | Teachers' Day | China |
| Sunday, September 10, 2023 | European Heritage Days | Germany |
| Sunday, September 10, 2023 | Grandparents' Day | Estonia |
| Sunday, September 10, 2023 | Gibraltar Day | Gibraltar |
| Sunday, September 10, 2023 | Children's Day | Honduras |
| Sunday, September 10, 2023 | Feast of Prophet Sabalan | Israel |
| Sunday, September 10, 2023 | Father's Day | Latvia |
| Sunday, September 10, 2023 | Public Holiday | Libya |
| Sunday, September 10, 2023 | Father's Day | North Macedonia |
| Sunday, September 10, 2023 | Repression Victims' Day | Mongolia |
| Sunday, September 10, 2023 | Public Holiday | Maldives |
| Sunday, September 10, 2023 | World Suicide Prevention Day | United States |
| Sunday, September 10, 2023 | National Grandparents Day | United States |
| Monday, September 11, 2023 | Day off for St. George's Caye Day | Belize |
| Monday, September 11, 2023 | Knabenschiessen | Switzerland |
| Monday, September 11, 2023 | National Day of Catalonia | Spain |
| Monday, September 11, 2023 | Pohnpei Liberation Day | Micronesia |
| Monday, September 11, 2023 | Gibraltar Day observed | Gibraltar |
| Monday, September 11, 2023 | Public Holiday | Libya |
| Monday, September 11, 2023 | Day off for Independence Day | Tajikistan |
| Monday, September 11, 2023 | First Responders Day | United States |
| Monday, September 11, 2023 | Patriot Day | United States |
| Monday, September 11, 2023 | Our Lady of Coromoto | Venezuela |
| Tuesday, September 12, 2023 | Nayrouz | Egypt |
| Tuesday, September 12, 2023 | Geez New Year | Eritrea |
| Tuesday, September 12, 2023 | Ethiopian New Year | Ethiopia |
| Tuesday, September 12, 2023 | International Day for South-South Cooperation | United States |
| Wednesday, September 13, 2023 | Akhari Chahar Somba | Bangladesh |
| Wednesday, September 13, 2023 | International Programmers' Day | United States |
| Thursday, September 14, 2023 | Demise of Prophet Muhammad and Martyrdom of Imam Hassan | Iran |
| Thursday, September 14, 2023 | Battle of San Jacinto | Nicaragua |
| Thursday, September 14, 2023 | National Mourning Day | Nepal |
| Friday, September 15, 2023 | Rosh Hashana Eve | Argentina |
| Friday, September 15, 2023 | Independence Day | Costa Rica |
| Friday, September 15, 2023 | Nuestra Señora de la Bien Aparecida | Spain |
| Friday, September 15, 2023 | Independence Day | Guatemala |
| Friday, September 15, 2023 | Rosh Hashana Eve | Israel |
| Friday, September 15, 2023 | Martyrdom of Imam Reza | Iran |
| Friday, September 15, 2023 | Shout of Dolores | Mexico |
| Friday, September 15, 2023 | Independence Day | Nicaragua |
| Friday, September 15, 2023 | Day off for Independence Day | Papua New Guinea |
| Friday, September 15, 2023 | Birth of Bocage | Portugal |
| Friday, September 15, 2023 | Incorporation of Primorska into the Motherland Day | Slovenia |
| Friday, September 15, 2023 | Day of Our Lady of Sorrows | Slovakia |
| Friday, September 15, 2023 | Independence Day | El Salvador |
| Friday, September 15, 2023 | International Day of Democracy | United States |
| Friday, September 15, 2023 | First Day of National Hispanic Heritage Month | United States |
| Friday, September 15, 2023 | National POW/MIA Recognition Day | United States |
| Saturday, September 16, 2023 | Rosh Hashana | Argentina |
| Saturday, September 16, 2023 | Valentine's Day | Colombia |
| Saturday, September 16, 2023 | Rosh Hashana | Germany |
| Saturday, September 16, 2023 | First day of Wiesn (Oktoberfest) | Germany |
| Saturday, September 16, 2023 | Rosh Hashana | Croatia |
| Saturday, September 16, 2023 | National Heroes Day | Saint Kitts and Nevis |
| Saturday, September 16, 2023 | Martyrs' Day | Libya |
| Saturday, September 16, 2023 | National Day | Maldives |
| Saturday, September 16, 2023 | Independence Day | Mexico |
| Saturday, September 16, 2023 | Malaysia Day | Malaysia |
| Saturday, September 16, 2023 | Independence Day | Papua New Guinea |
| Saturday, September 16, 2023 | Rosh Hashana | United Kingdom |
| Saturday, September 16, 2023 | International Day for the Preservation of the Ozone Layer | United States |
| Saturday, September 16, 2023 | Rosh Hashana | United States |
| Sunday, September 17, 2023 | National Hero Day | Angola |
| Sunday, September 17, 2023 | Second day of Rosh Hashana | Argentina |
| Sunday, September 17, 2023 | Day of the Walloon Region | Belgium |
| Sunday, September 17, 2023 | National Unity Day | Belarus |
| Sunday, September 17, 2023 | Swiss Federal Fast | Switzerland |
| Sunday, September 17, 2023 | Second Day of Rosh Hashana | Germany |
| Sunday, September 17, 2023 | Day of Melilla | Spain |
| Sunday, September 17, 2023 | Confucius' Birthday | Hong Kong |
| Sunday, September 17, 2023 | Teacher's Day | Honduras |
| Sunday, September 17, 2023 | Rosh Hashana (Day 2) | Israel |
| Sunday, September 17, 2023 | Birthday of Crown Prince Tupouto'a-'Ulukalala | Tonga |
| Sunday, September 17, 2023 | World Patient Safety Day | United States |
| Sunday, September 17, 2023 | Constitution Day and Citizenship Day | United States |
| Sunday, September 17, 2023 | Constitution Commemoration Day | United States |
| Monday, September 18, 2023 | Federal Fast Monday | Switzerland |
| Monday, September 18, 2023 | National Day | Chile |
| Monday, September 18, 2023 | Gedaliah Fast | Israel |
| Monday, September 18, 2023 | Respect for the Aged Day | Japan |
| Monday, September 18, 2023 | Hartalika Teej | Nepal |
| Monday, September 18, 2023 | Day off for Birthday of Crown Prince Tupouto'a-'Ulukalala | Tonga |
| Monday, September 18, 2023 | Ganesh Chaturthi | United Kingdom |
| Monday, September 18, 2023 | International Equal Pay Day | United States |
| Monday, September 18, 2023 | Air Force Birthday | United States |
| Monday, September 18, 2023 | Constitution Day and Citizenship Day observed | United States |
| Monday, September 18, 2023 | Ganesh Chaturthi | South Africa |
| Tuesday, September 19, 2023 | Army Day | Chile |
| Tuesday, September 19, 2023 | Ganesh Chaturthi | Indonesia |
| Tuesday, September 19, 2023 | The Feast of Saint Januarius (Naples) | Italy |
| Tuesday, September 19, 2023 | Independence Day | Saint Kitts and Nevis |
| Tuesday, September 19, 2023 | Ganesh Chaturthi | Sri Lanka |
| Tuesday, September 19, 2023 | Constitution Day | Nepal |
| Tuesday, September 19, 2023 | Ganesh Chaturthi | Pakistan |
| Tuesday, September 19, 2023 | Foundation of the Slovak National Council Day | Slovakia |
| Wednesday, September 20, 2023 | Thimphu Drubchoe (Thimphu only) | Bhutan |
| Wednesday, September 20, 2023 | German World Children's Day | Germany |
| Wednesday, September 20, 2023 | Ganesh Chaturthi | Mauritius |
| Thursday, September 21, 2023 | Independence Day | Armenia |
| Thursday, September 21, 2023 | Kwame Nkrumah Memorial Day | Ghana |
| Thursday, September 21, 2023 | Independence Day | Malta |
| Thursday, September 21, 2023 | St. Matthew's Day | Portugal |
| Thursday, September 21, 2023 | International Day of Peace | United States |
| Friday, September 22, 2023 | September Equinox | American Samoa |
| Friday, September 22, 2023 | Independence Day | Bulgaria |
| Friday, September 22, 2023 | Mauritius Day | Switzerland |
| Friday, September 22, 2023 | September Equinox | Cook Islands |
| Friday, September 22, 2023 | Resistance Day | Estonia |
| Friday, September 22, 2023 | Independence Day | Mali |
| Friday, September 22, 2023 | September Equinox | French Polynesia |
| Friday, September 22, 2023 | Emancipation Day | United States |
| Friday, September 22, 2023 | Native American Day | United States |
| Friday, September 22, 2023 | Michigan Indian Day | United States |
| Saturday, September 23, 2023 | September Equinox | Andorra |
| Saturday, September 23, 2023 | Martyrdom of Imam Hasan al-Askari | Iran |
| Saturday, September 23, 2023 | September Equinox | Iran |
| Saturday, September 23, 2023 | Autumn Equinox | Japan |
| Saturday, September 23, 2023 | September Equinox | Japan |
| Saturday, September 23, 2023 | Saudi National Day | Saudi Arabia |
| Saturday, September 23, 2023 | September Equinox | Saudi Arabia |
| Saturday, September 23, 2023 | Slovenian Sports Day | Slovenia |
| Saturday, September 23, 2023 | September Equinox | Slovenia |
| Saturday, September 23, 2023 | Special Working Day | Taiwan |
| Saturday, September 23, 2023 | September Equinox | Taiwan |
| Saturday, September 23, 2023 | International Day of Sign Languages | United States |
| Saturday, September 23, 2023 | International Celebrate Bisexuality Day | United States |
| Saturday, September 23, 2023 | Public Lands Day | United States |
| Saturday, September 23, 2023 | National Public Lands Day | United States |
| Saturday, September 23, 2023 | September Equinox | United States |
| Sunday, September 24, 2023 | Yom Kippur Eve | Argentina |
| Sunday, September 24, 2023 | European Heritage Days | Austria |
| Sunday, September 24, 2023 | Saint Rupert's Day | Austria |
| Sunday, September 24, 2023 | Blessed Rainy Day | Bhutan |
| Sunday, September 24, 2023 | Thimphu Tshechu (Thimphu only) | Bhutan |
| Sunday, September 24, 2023 | Feast of Our Lady of Mercy | Dominican Republic |
| Sunday, September 24, 2023 | Independence Day (National Day) | Guinea-Bissau |
| Sunday, September 24, 2023 | Yom Kippur Eve | Israel |
| Sunday, September 24, 2023 | Constitutional Day | Cambodia |
| Sunday, September 24, 2023 | New Caledonia Day | New Caledonia |
| Sunday, September 24, 2023 | Armed Forces Day | Peru |
| Sunday, September 24, 2023 | Day off for Saudi National Day | Saudi Arabia |
| Sunday, September 24, 2023 | Anniversary of the Failed Attack on Lomé | Togo |
| Sunday, September 24, 2023 | Mahidol Day | Thailand |
| Sunday, September 24, 2023 | Republic Day | Trinidad and Tobago |
| Sunday, September 24, 2023 | Gold Star Mother's Day | United States |
| Sunday, September 24, 2023 | Heritage Day | South Africa |
| Monday, September 25, 2023 | Yom Kippur | Argentina |
| Monday, September 25, 2023 | King's Birthday | Australia |
| Monday, September 25, 2023 | Thimphu Tshechu (Thimphu only) | Bhutan |
| Monday, September 25, 2023 | Yom Kippur | Canada |
| Monday, September 25, 2023 | St. Nicholas of Flüe | Switzerland |
| Monday, September 25, 2023 | Yom Kippur | Germany |
| Monday, September 25, 2023 | Unification Day of Istria, Rijeka, Zadar, and the Islands | Croatia |
| Monday, September 25, 2023 | Yom Kippur | Israel |
| Monday, September 25, 2023 | First day of Yom Kippur (Jewish community) | North Macedonia |
| Monday, September 25, 2023 | Armed Forces Day | Mozambique |
| Monday, September 25, 2023 | Sir Hammer DeRoburt Day | Nauru |
| Monday, September 25, 2023 | South Canterbury Anniversary Day | New Zealand |
| Monday, September 25, 2023 | Yom Kippur | Serbia |
| Monday, September 25, 2023 | Republic Day observed | Trinidad and Tobago |
| Monday, September 25, 2023 | Yom Kippur | United Kingdom |
| Monday, September 25, 2023 | American Indian Day | United States |
| Monday, September 25, 2023 | Yom Kippur | United States |
| Monday, September 25, 2023 | Day off for Heritage Day | South Africa |
| Tuesday, September 26, 2023 | Thimphu Tshechu (Thimphu only) | Bhutan |
| Tuesday, September 26, 2023 | Yom Kippur Holiday | Montenegro |
| Tuesday, September 26, 2023 | Giarhwin Sharief | Pakistan |
| Tuesday, September 26, 2023 | International Day for the Total Elimination of Nuclear Weapons | United States |
| Tuesday, September 26, 2023 | Revolution Day | Yemen |
| Wednesday, September 27, 2023 | Mouloud | United Arab Emirates |
| Wednesday, September 27, 2023 | The Prophet's Birthday | Afghanistan |
| Wednesday, September 27, 2023 | Milad un Nabi | Australia |
| Wednesday, September 27, 2023 | Hari Maulad Nabi | Australia |
| Wednesday, September 27, 2023 | Day of the French Community | Belgium |
| Wednesday, September 27, 2023 | The Prophet's Birthday | Bahrain |
| Wednesday, September 27, 2023 | Maouloud | Benin |
| Wednesday, September 27, 2023 | Milad un Nabi | Canada |
| Wednesday, September 27, 2023 | World Tourism Day | Congo Democratic Republic |
| Wednesday, September 27, 2023 | The Prophet's Birthday | Cote d'Ivoire |
| Wednesday, September 27, 2023 | Milad un Nabi | Djibouti |
| Wednesday, September 27, 2023 | The Prophet's Birthday | Eritrea |
| Wednesday, September 27, 2023 | Meskel | Eritrea |
| Wednesday, September 27, 2023 | The Prophet's Birthday | Ethiopia |
| Wednesday, September 27, 2023 | Prophet's Birthday | Jordan |
| Wednesday, September 27, 2023 | The Prophet's Birthday | Comoros |
| Wednesday, September 27, 2023 | Milad un Nabi | Maldives |
| Wednesday, September 27, 2023 | The Prophet's Birthday | Niger |
| Wednesday, September 27, 2023 | Id el Maulud | Nigeria |
| Wednesday, September 27, 2023 | Maulid un-Nabi | Philippines |
| Wednesday, September 27, 2023 | The Prophet's Birthday | Russia |
| Wednesday, September 27, 2023 | Maouloud | Senegal |
| Wednesday, September 27, 2023 | The Prophet's Birthday | Somalia |
| Wednesday, September 27, 2023 | Independence Day | Turkmenistan |
| Wednesday, September 27, 2023 | The Prophet's Birthday | Tunisia |
| Wednesday, September 27, 2023 | World Tourism Day | United States |
| Wednesday, September 27, 2023 | The Prophet's Birthday | Yemen |
| Thursday, September 28, 2023 | Eid e-Milad-un Nabi | Bangladesh |
| Thursday, September 28, 2023 | Madhu Purnima | Bangladesh |
| Thursday, September 28, 2023 | The Prophet's Birthday | Burkina Faso |
| Thursday, September 28, 2023 | Maulidur Rasul | Brunei |
| Thursday, September 28, 2023 | St. Wenceslas Day | Czechia |
| Thursday, September 28, 2023 | The Prophet's Birthday | Algeria |
| Thursday, September 28, 2023 | Prophet Mohamed's Birthday | Egypt |
| Thursday, September 28, 2023 | Meskel | Ethiopia |
| Thursday, September 28, 2023 | The Prophet's Birthday | Gambia |
| Thursday, September 28, 2023 | Youman-Nabi | Guyana |
| Thursday, September 28, 2023 | Maulid Nabi Muhammad | Indonesia |
| Thursday, September 28, 2023 | Milad un-Nabi | India |
| Thursday, September 28, 2023 | Chuseok Holiday | South Korea |
| Thursday, September 28, 2023 | The Prophet's Birthday | Kuwait |
| Thursday, September 28, 2023 | Milad-Un-Nabi | Sri Lanka |
| Thursday, September 28, 2023 | The Prophet Muhammad's Birthday | Morocco |
| Thursday, September 28, 2023 | International Bosniaks' Day (for Bosniak community) | North Macedonia |
| Thursday, September 28, 2023 | The Prophet's Birthday | Mali |
| Thursday, September 28, 2023 | Milad un Nabi | Mauritania |
| Thursday, September 28, 2023 | Public Holiday | Maldives |
| Thursday, September 28, 2023 | The Prophet Muhammad's Birthday | Malaysia |
| Thursday, September 28, 2023 | Indra Jatra | Nepal |
| Thursday, September 28, 2023 | The Prophet's Birthday | Oman |
| Thursday, September 28, 2023 | Teachers' Day | Taiwan |
| Thursday, September 28, 2023 | Maulid | Tanzania |
| Thursday, September 28, 2023 | Milad un Nabi | United Kingdom |
| Thursday, September 28, 2023 | World Maritime Day | United States |
| Thursday, September 28, 2023 | International Day for Universal Access to Information | United States |
| Thursday, September 28, 2023 | World Rabies Day | United States |
| Thursday, September 28, 2023 | Day of Bosnians | Kosovo |
| Thursday, September 28, 2023 | The Prophet's Birthday | Mayotte |
| Thursday, September 28, 2023 | Milad un Nabi | South Africa |
| Friday, September 29, 2023 | Mouloud Holiday | United Arab Emirates |
| Friday, September 29, 2023 | Friday before the AFL Grand Final | Australia |
| Friday, September 29, 2023 | Mid-Autumn Festival | China |
| Friday, September 29, 2023 | Sukkot Eve | Israel |
| Friday, September 29, 2023 | Chuseok Harvest Festival | North Korea |
| Friday, September 29, 2023 | Chuseok | South Korea |
| Friday, September 29, 2023 | Binara Full Moon Poya Day | Sri Lanka |
| Friday, September 29, 2023 | The Prophet Muhammad's Birthday Holiday | Morocco |
| Friday, September 29, 2023 | Manit Day | Marshall Islands |
| Friday, September 29, 2023 | Eid Milad un-Nabi | Pakistan |
| Friday, September 29, 2023 | Boqueron Battle Victory Day | Paraguay |
| Friday, September 29, 2023 | Day off for Nationalization of the Roças | Sao Tome and Principe |
| Friday, September 29, 2023 | National Youth Day | Turks and Caicos Islands |
| Friday, September 29, 2023 | Mid-Autumn Festival | Taiwan |
| Friday, September 29, 2023 | International Day of Awareness of Food Loss and Waste | United States |
| Friday, September 29, 2023 | World Heart Day | United States |
| Friday, September 29, 2023 | American Indian Heritage Day | United States |
| Saturday, September 30, 2023 | First day of Sukkot | Australia |
| Saturday, September 30, 2023 | Botswana Day | Botswana |
| Saturday, September 30, 2023 | First day of Sukkot | Canada |
| Saturday, September 30, 2023 | National Day for Truth and Reconciliation | Canada |
| Saturday, September 30, 2023 | Mid-Autumn Festival Holiday | China |
| Saturday, September 30, 2023 | German Food Bank Day | Germany |
| Saturday, September 30, 2023 | First day of Sukkot | Germany |
| Saturday, September 30, 2023 | Day after Mid-Autumn Festival | Hong Kong |
| Saturday, September 30, 2023 | Sukkot (Day 1) | Israel |
| Saturday, September 30, 2023 | Chuseok Holiday | South Korea |
| Saturday, September 30, 2023 | Day after the Mid-Autumn-Festival | Macau |
| Saturday, September 30, 2023 | Nationalization of the Roças | Sao Tome and Principe |
| Saturday, September 30, 2023 | Mid-Autumn Festival Holiday | Taiwan |
| Saturday, September 30, 2023 | First day of Sukkot | United Kingdom |
| Saturday, September 30, 2023 | First Day of Sukkot | United States |
| Saturday, September 30, 2023 | International Translation Day | United States |