September 2027

🇦🇲Armenia: Knowledge and Literature Day

🇪🇷Eritrea: Commencement Day of Eritrean Armed Struggle

🇩🇪Germany: Anti War Day

🇬🇩Grenada: Kirani Day

🇮🇱Israel: First Day of School Year

🇸🇰Slovakia: Constitution Day

🇹🇲Turkmenistan: Day of Students and Knowledge

🇺🇿Uzbekistan: Independence Day

🇳🇮Nicaragua: Army Day

🇪🇸Spain: Day of the Independent City of Ceuta

🇻🇳Vietnam: Independence Day

🌐Ganesh Chaturthi

🇲🇻Maldives: The Day Maldives Embraced Islam (Tentative Date)

🇲🇭Marshall Islands: Labor Day

🇵🇭Philippines: Yamashita Surrender Day

🇸🇲San Marino: The Feast of St Marinus and Republic Day

🇹🇼Taiwan: Armed Forces Day

🇮🇳India: Ganesh Chaturthi

🇺🇸United States: World Sexual Health Day

🌐Father’s Day

🇦🇱Albania: Mother Teresa Beatification Day

🇺🇸United States: International Day of Charity

🌐Labor Day

🌐Labour Day

🇦🇱Albania: Day off for Mother Teresa Beatification Day

🇧🇬Bulgaria: Unification Day

🇸🇿Eswatini: Somhlolo Day

🇸🇿Eswatini: Umhlanga Reed Dance (Tentative Date)

🇸🇹Sao Tome and Principe: Armed Forces' Day

🇪🇸Spain: Elcano's Day

🇧🇷Brazil: Independence Day

🇫🇯Fiji: Constitution Day

🇲🇿Mozambique: Victory Day

🇺🇸United States: International Day of Clean Air for Blue Skies

🇺🇸United States: Still's Disease Awareness Day

🇦🇩Andorra: National Day

🇱🇧Lebanon: Nativity of Mary

🇱🇮Liechtenstein: Nativity of Our Lady

🇲🇹Malta: Our Lady of Victories

🇫🇲Micronesia: Kosrae Liberation Day

🇲🇰North Macedonia: Independence Day

🇵🇭Philippines: Feast of the Nativity of Mary

🇪🇸Spain: Day of Asturias

🇪🇸Spain: Day of Extremadura

🇪🇸Spain: Virgin of the Victory

🇺🇸United States: International Literacy Day

🇦🇫Afghanistan: Martyrs and Ahmad Shah Masoud Day

🇦🇬Antigua and Barbuda: National Day of Prayer

🇨🇷Costa Rica: Children's Day

🇮🇱Israel: Feast of Prophet Sabalan Eve

🇰🇵North Korea: National Day

🇸🇰Slovakia: Day of the Victims of Holocaust and of racial violence

🇨🇭Switzerland: Genevese Fast

🇹🇯Tajikistan: Independence Day

🇺🇸United States: California Admission Day

🇺🇸United States: International Day to Protect Education from Attack

🇧🇿Belize: St. George's Caye Day

🇨🇳China: Teachers' Day

🇬🇮Gibraltar: Gibraltar Day

🇭🇳Honduras: Children's Day

🇮🇱Israel: Feast of Prophet Sabalan

🇫🇲Micronesia: Pohnpei Liberation Day observed

🇲🇳Mongolia: Repression Victims' Day

🇺🇸United States: World Suicide Prevention Day

🇩🇪Germany: German Language Day

🇫🇲Micronesia: Pohnpei Liberation Day

🇪🇸Spain: National Day of Catalonia

🇨🇭Switzerland: Knabenschiessen

🇺🇸United States: Carl Garner Federal Lands Cleanup Day

🇺🇸United States: First Responders Day

🇺🇸United States: Native American Day

🇺🇸United States: Patriot Day

🇻🇪Venezuela: Our Lady of Coromoto

🌐Fathers' Day

🇪🇬Egypt: Nayrouz

🇪🇷Eritrea: Geez New Year

🇪🇪Estonia: Grandparents' Day

🇪🇹Ethiopia: Ethiopian New Year

🇩🇪Germany: European Heritage Days

🇮🇳India: Onam

🇨🇭Switzerland: Knabenschiessen

🇺🇸United States: Constitution Commemoration Day

🇺🇸United States: International Day for South-South Cooperation

🇺🇸United States: National Grandparents Day

🇨🇭Switzerland: Knabenschiessen

🇺🇸United States: International Programmers' Day

🇳🇮Nicaragua: Battle of San Jacinto

🇰🇷South Korea: Chuseok Holiday

🌐Independence Day

🌐Mid-Autumn Festival

🇲🇽Mexico: Shout of Dolores

🇸🇰Slovakia: Day of Our Lady of Sorrows

🇸🇮Slovenia: Incorporation of Primorska into the Motherland Day

🇰🇷South Korea: Chuseok

🇪🇸Spain: Nuestra Señora de la Bien Aparecida

🇺🇸United States: First Day of National Hispanic Heritage Month

🇺🇸United States: International Day of Democracy

🌐Independence Day

🇭🇰Hong Kong: Day after Mid-Autumn Festival

🇱🇾Libya: Martyrs' Day

🇲🇴Macau: Day after the Mid-Autumn-Festival

🇲🇾Malaysia: Malaysia Day

🇰🇳Saint Kitts and Nevis: National Heroes Day

🇰🇷South Korea: Chuseok Holiday

🇺🇸United States: International Day for the Preservation of the Ozone Layer

🇦🇴Angola: National Hero Day

🇧🇾Belarus: National Unity Day

🇭🇳Honduras: Teacher's Day

🇪🇸Spain: Day of Melilla

🇹🇴Tonga: Birthday of Crown Prince Tupouto'a-'Ulukalala

🇺🇸United States: Constitution Day and Citizenship Day

🇺🇸United States: National POW/MIA Recognition Day

🇺🇸United States: World Patient Safety Day

🇻🇦Vatican City (Holy See): St Robert Bellarmine Feast Day

🇨🇱Chile: National Day

🇨🇴Colombia: Valentine's Day

🇩🇪Germany: First day of Wiesn (Oktoberfest)

🇺🇸United States: Air Force Birthday

🇺🇸United States: International Equal Pay Day

🇧🇪Belgium: Day of the Walloon Region

🇨🇱Chile: Army Day

🇭🇰Hong Kong: Confucius' Birthday

🇮🇹Italy: The Feast of Saint Januarius (Naples)

🇰🇳Saint Kitts and Nevis: Independence Day

🇸🇰Slovakia: Foundation of the Slovak National Council Day

🇨🇭Switzerland: Swiss Federal Fast

🇩🇪Germany: German World Children's Day

🇭🇹Haiti: Dessalines Day

🇯🇵Japan: Respect for the Aged Day

🇰🇳Saint Kitts and Nevis: Day off for Independence Day

🇨🇭Switzerland: Federal Fast Monday

🌐Independence Day

🇬🇭Ghana: Founders' Day

🇬🇭Ghana: Kwame Nkrumah Memorial Day

🇺🇸United States: International Day of Peace

🌐September Equinox

🌐Independence Day

🇪🇪Estonia: Resistance Day

🇨🇭Switzerland: Mauritius Day

🇺🇸United States: Emancipation Day

🌐September Equinox

🇯🇵Japan: Autumn Equinox

🇸🇦Saudi Arabia: Saudi National Day

🇸🇮Slovenia: Slovenian Sports Day

🇺🇸United States: International Celebrate Bisexuality Day

🇺🇸United States: International Day of Sign Languages

🇦🇺Australia: Friday before the AFL Grand Final (Tentative Date)

🇦🇹Austria: Saint Rupert's Day

🇰🇭Cambodia: Constitutional Day

🇩🇴Dominican Republic: Feast of Our Lady of Mercy

🇬🇼Guinea-Bissau: Independence Day (National Day)

🇲🇭Marshall Islands: Manit Day

🇳🇨New Caledonia: New Caledonia Day

🇵🇪Peru: Armed Forces Day

🇿🇦South Africa: Heritage Day

🇹🇭Thailand: Mahidol Day

🇹🇬Togo: Anniversary of the Failed Attack on Lomé

🇹🇹Trinidad and Tobago: Republic Day

🇹🇨Turks and Caicos Islands: National Youth Day

🇺🇸United States: American Indian Heritage Day

🇺🇸United States: Michigan Indian Day

🇺🇸United States: Native American Day

🇭🇷Croatia: Unification Day of Istria, Rijeka, Zadar, and the Islands

🇲🇿Mozambique: Armed Forces Day

🇳🇷Nauru: Sir Hammer DeRoburt Day

🇨🇭Switzerland: St. Nicholas of Flüe

🇺🇸United States: National Public Lands Day

🇺🇸United States: Public Lands Day

🇦🇹Austria: European Heritage Days

🇺🇸United States: Gold Star Mother's Day

🇺🇸United States: International Day for the Total Elimination of Nuclear Weapons

🇾🇪Yemen: Revolution Day

🌐World Tourism Day

🇦🇺Australia: King's Birthday

🇧🇪Belgium: Day of the French Community

🇪🇷Eritrea: Meskel

🇳🇷Nauru: Sir Hammer DeRoburt Day observed

🇳🇿New Zealand: South Canterbury Anniversary Day

🇹🇲Turkmenistan: Independence Day

🇺🇸United States: American Indian Day

🇨🇿Czechia: St. Wenceslas Day

🇪🇹Ethiopia: Meskel

🇽🇰Kosovo: Day of Bosnians

🇲🇰North Macedonia: International Bosniaks' Day (for Bosniak community)

🇹🇼Taiwan: Teachers' Day

🇺🇸United States: International Day for Universal Access to Information

🇺🇸United States: World Rabies Day

🇲🇾Malaysia: Birthday of the Sultan of Kelantan

🇵🇾Paraguay: Boqueron Battle Victory Day

🇺🇸United States: International Day of Awareness of Food Loss and Waste

🇺🇸United States: World Heart Day

🌐Navaratri

🇧🇼Botswana: Botswana Day

🇨🇦Canada: National Day for Truth and Reconciliation

🇮🇳India: First Day of Sharad Navratri

🇸🇹Sao Tome and Principe: Nationalization of the Roças

🇺🇸United States: International Translation Day

🇺🇸United States: World Maritime Day