# September 2027: holidays, special days and observances > Every day of September 2027 with its special days: national and public holidays, world and awareness days, and fun days, each with one line about what it marks. Highlights: Labor Day (September 6), Patriot Day (9/11 Remembrance) (September 11), Grandparents Day (September 12), Constitution Day (September 17), Gold Star Mother's and Family's Day (September 26) and National Good Neighbor Day (September 28). Source: https://whatdayisitapp.com/calendar/2027/september/ · Updated: 2026-11-04 · What Day Is It? ### Wednesday, September 1, 2027 September 1, 2027 is World Letter Writing Day. - **World Letter Writing Day** (fun day): Paper, pen and someone you love: write a letter today. - Around the world: **National Wattle Day** — Australia - Around the world: **Independence Day** — Uzbekistan - Around the world: **Knowledge, Literacy and Education Day** — Armenia - 5 more days around the world in the app: https://apps.apple.com/app/id6822815713 ### Thursday, September 2, 2027 September 2, 2027 is World Coconut Day. - **World Coconut Day** (fun day): A day for the tasty fruit of the tropics. - Around the world: **National Day** — Vietnam ### Friday, September 3, 2027 September 3, 2027 is Skyscraper Day. - **Skyscraper Day** (fun day): A day for the buildings that reach for the sky and those who build them. - Around the world: **Foundation Day** — San Marino - Around the world: **Armed Forces Day** — Taiwan ### Saturday, September 4, 2027 September 4, 2027 is Newspaper Carrier Day. - **Newspaper Carrier Day** (fun day): Thanks to those who bring the news to our door early every morning. ### Sunday, September 5, 2027 September 5, 2027 is International Day of Charity. It is also World's Indigenous Women and Girls Day. And a fun one: Cheese Pizza Day. - **International Day of Charity** (Worldwide): A day of giving on Mother Teresa's anniversary. Even a small donation makes a difference. - **World's Indigenous Women and Girls Day** (Worldwide): Making visible the knowledge, culture and rights of Indigenous women. - **Cheese Pizza Day** (fun day): Simple and legendary: who says no to a cheesy pizza? - Around the world: **Father's Day** — Australia, New Zealand - Around the world: **Ganesh Chaturthi** — Mauritius ### Monday, September 6, 2027 September 6, 2027 is Labor Day in the United States. And a fun one: Read a Book Day. - **Labor Day** (United States): Honouring American workers, and the last long weekend of summer. - **Read a Book Day** (fun day): Read a book today, even just a few pages. - Around the world: **Labour Day** — Canada, Puerto Rico - Around the world: **Independence Day** — Eswatini - Around the world: **Unification Day** — Bulgaria - 1 more day around the world in the app: https://apps.apple.com/app/id6822815713 ### Tuesday, September 7, 2027 September 7, 2027 is International Day of Clean Air. It is also World Duchenne Awareness Day and International Day of Police Cooperation. And a fun one: Salami Day. - **International Day of Clean Air** (Worldwide): Take a deep breath. Clean air isn't a luxury, it's a right. - **World Duchenne Awareness Day** (Worldwide): Raising awareness of Duchenne, a muscle disease mostly affecting boys. - **International Day of Police Cooperation** (Worldwide): A day for cooperation between police forces in fighting crime. - **Salami Day** (fun day): A slice of salami and cheese: a sandwich essential. - Around the world: **Independence Day** — Brazil - Around the world: **Constitution Day** — Fiji - Around the world: **Lusaka Peace Agreement** — Mozambique ### Wednesday, September 8, 2027 September 8, 2027 is World Physiotherapy Day. It is also International Literacy Day. And a fun one: Star Trek Day. - **World Physiotherapy Day** (Worldwide): A day for the physiotherapists who help us walk, run and live pain-free again. - **International Literacy Day** (Worldwide): Knowing how to read opens doors. Gift someone a book today. - **Star Trek Day** (fun day): A journey into deep space: "Live long and prosper!" - Around the world: **Day of Asturias and Extremadura** — Spain - Around the world: **Our Lady of Meritxell Day** — Andorra - Around the world: **Mariä Geburt** — Liechtenstein - 2 more days around the world in the app: https://apps.apple.com/app/id6822815713 ### Thursday, September 9, 2027 September 9, 2027 is Protect Education from Attack Day. And a fun one: Teddy Bear Day. - **Protect Education from Attack Day** (Worldwide): Schools must stay safe in every circumstance; education must never be a target. - **Teddy Bear Day** (fun day): Give your cuddly companion a big squeeze today. - Around the world: **R U OK? Day** — Australia - Around the world: **Independence Day** — Tajikistan ### Friday, September 10, 2027 September 10, 2027 is TV Dinner Day. - **TV Dinner Day** (fun day): A cosy evening: a tray of dinner and your favourite show. - Around the world: **St. George's Caye Day** — Belize - Around the world: **Independence of Guayaquil** — Ecuador - Around the world: **Children's Day** — Honduras ### Saturday, September 11, 2027 September 11, 2027 is Patriot Day (9/11 Remembrance) in the United States. It is also World First Aid Day. - **Patriot Day (9/11 Remembrance)** (United States): Remembering those who lost their lives in 2001. - **World First Aid Day** (Worldwide): Basic first aid can save a life. Calling emergency services is the first step. - Around the world: **Day of the German Language** — Germany - Around the world: **National Day of Catalonia (Diada)** — Spain - Around the world: **Geez New Year** — Eritrea - 1 more day around the world in the app: https://apps.apple.com/app/id6822815713 ### Sunday, September 12, 2027 September 12, 2027 is Grandparents Day in the United States. It is also Day for South-South Cooperation. And a fun one: Chocolate Milkshake Day. - **Grandparents Day** (United States): Don't forget to call your grandparents today. - **Day for South-South Cooperation** (Worldwide): A day for solidarity among developing countries. - **Chocolate Milkshake Day** (fun day): A creamy chocolate milkshake sipped through a fat straw! - Around the world: **National Day** — Cape Verde ### Monday, September 13, 2027 September 13, 2027 is World Sepsis Day. And a fun one: Programmers' Day. - **World Sepsis Day** (Worldwide): Fever, fast breathing and confusion together? Get medical help fast. Sepsis must be caught early. - **Programmers' Day** (fun day): Day 256 of the year. Don't ask your developer friend to fix your computer, just celebrate them. ### Tuesday, September 14, 2027 September 14, 2027 is Live Creative Day. - **Live Creative Day** (fun day): Draw, write or make something today: set your creativity free! - Around the world: **Māori Language Day** — New Zealand - Around the world: **Korean Thanksgiving** — South Korea - Around the world: **Battle of San Jacinto** — Nicaragua ### Wednesday, September 15, 2027 September 15, 2027 is International Day of Democracy. - **International Day of Democracy** (Worldwide): Democracy takes effort every day. - Around the world: **Battle of Britain Day** — United Kingdom - Around the world: **El Grito (Independence Eve)** — Mexico - Around the world: **Independence Day** — 5 countries: Costa Rica, El Salvador, Guatemala and 2 more - 4 more days around the world in the app: https://apps.apple.com/app/id6822815713 ### Thursday, September 16, 2027 September 16, 2027 is International Day for Interventional Cardiology. It is also Science, Technology and Innovation for the South and Preservation of the Ozone Layer Day. And a fun one: Guacamole Day. - **International Day for Interventional Cardiology** (Worldwide): A day for interventional cardiology, saving lives by opening heart arteries. - **Science, Technology and Innovation for the South** (Worldwide): A call for science and technology to reach developing countries too. - **Preservation of the Ozone Layer Day** (Worldwide): The ozone layer is healing. Proof that working together works! - **Guacamole Day** (fun day): Ripe avocado, lime and crunchy chips: a bowl of happiness. - Around the world: **Independence Day** — Mexico, Papua New Guinea - Around the world: **National Heroes' Day** — Saint Kitts and Nevis - Around the world: **Martyrs' Day** — Libya - 1 more day around the world in the app: https://apps.apple.com/app/id6822815713 ### Friday, September 17, 2027 September 17, 2027 is Constitution Day in the United States. It is also World Patient Safety Day. - **Constitution Day** (United States): Marking the signing of the U.S. Constitution in 1787. - **World Patient Safety Day** (Worldwide): Right drug, right dose, right patient: patient safety is everyone's responsibility. - Around the world: **National Hero Day** — Angola - Around the world: **Teacher's Day** — Honduras - Around the world: **Anniversary of the Soviet invasion of Poland** — Poland - 2 more days around the world in the app: https://apps.apple.com/app/id6822815713 ### Saturday, September 18, 2027 September 18, 2027 is International Equal Pay Day. And a fun one: Cheeseburger Day. - **International Equal Pay Day** (Worldwide): Equal pay for equal work. It's that simple. - **Cheeseburger Day** (fun day): A juicy burger with melted cheese: treat yourself today. - Around the world: **Oktoberfest begins** — Germany - Around the world: **European Heritage Days** — France - Around the world: **Independence Day** — Chile ### Sunday, September 19, 2027 September 19, 2027 is Talk Like a Pirate Day. - **Talk Like a Pirate Day** (fun day): Arr! Everyone's a crew member today, and you're the captain! - Around the world: **San Gennaro (Naples)** — Italy - Around the world: **Independence Day** — Saint Kitts and Nevis - Around the world: **Walloon Region Festival** — Belgium - 2 more days around the world in the app: https://apps.apple.com/app/id6822815713 ### Monday, September 20, 2027 September 20, 2027 is World Cleanup Day. And a fun one: Fried Rice Day. - **World Cleanup Day** (Worldwide): Pick up a bag of litter on your street or at the beach today. - **Fried Rice Day** (fun day): Give yesterday's rice a new life: veggie fried rice! - Around the world: **Children's Day (Germany)** — Germany - Around the world: **Respect-for-the-Aged Day** — Japan - Around the world: **Independence Day** — Saint Kitts and Nevis ### Tuesday, September 21, 2027 September 21, 2027 is World Alzheimer's Day. It is also International Day of Peace. - **World Alzheimer's Day** (Worldwide): Forgetfulness isn't always just ageing. A day to support people with Alzheimer's and their carers. - **International Day of Peace** (Worldwide): A minute of silence for world peace. - Around the world: **Prince's Day** — Netherlands - Around the world: **Independence Day** — Armenia, Belize, Malta - Around the world: **Student's Day** — Bolivia - 1 more day around the world in the app: https://apps.apple.com/app/id6822815713 ### Wednesday, September 22, 2027 September 22, 2027 is World Car-Free Day. - **World Car-Free Day** (fun day): Walk, cycle or try public transport today. - Around the world: **Independence Day** — Bulgaria, Mali - Around the world: **Resistance Fighting Day** — Estonia ### Thursday, September 23, 2027 September 23, 2027 is International Day of Sign Languages. - **International Day of Sign Languages** (Worldwide): How about learning to say "hello" in sign language today? - Around the world: **Autumnal Equinox Day** — Japan - Around the world: **National Day** — Saudi Arabia - Around the world: **Slovenian Sports Day** — Slovenia ### Friday, September 24, 2027 September 24, 2027 is Punctuation Day. - **Punctuation Day** (fun day): A comma changes everything: "Let's eat, Grandma!" - Around the world: **Independence Day** — Guinea-Bissau - Around the world: **Our Lady of las Mercedes** — Dominican Republic - Around the world: **Republic Day** — Trinidad and Tobago - 1 more day around the world in the app: https://apps.apple.com/app/id6822815713 ### Saturday, September 25, 2027 September 25, 2027 is World Pharmacists Day. And a fun one: Comic Book Day. - **World Pharmacists Day** (Worldwide): Thanks to our pharmacists, the first stop for our health. - **Comic Book Day** (fun day): Superheroes and colourful pages: open a comic book. - Around the world: **National Day of Homage to the Harkis** — France - Around the world: **Defense Force’s Day** — Mozambique ### Sunday, September 26, 2027 September 26, 2027 is Gold Star Mother's and Family's Day in the United States. It is also Total Elimination of Nuclear Weapons Day. - **Gold Star Mother's and Family's Day** (United States): Honouring families who lost a loved one in military service. - **Total Elimination of Nuclear Weapons Day** (Worldwide): A call for a world free of nuclear weapons. - Around the world: **Clocks go forward (summer time)** — New Zealand - Around the world: **Binara Full Moon Poya Day** — Sri Lanka ### Monday, September 27, 2027 September 27, 2027 is World Tourism Day. And a fun one: Chocolate Milk Day. - **World Tourism Day** (Worldwide): Even if you're not packing, dreaming of your next destination is allowed. - **Chocolate Milk Day** (fun day): A cold glass of chocolate milk, the taste of childhood. - Around the world: **Independence Day** — Turkmenistan - Around the world: **Meskel** — Eritrea - Around the world: **Finding of the True Cross** — Ethiopia ### Tuesday, September 28, 2027 September 28, 2027 is National Good Neighbor Day in the United States. It is also World School Milk Day and Universal Access to Information Day. And a fun one: Good Neighbor Day. - **National Good Neighbor Day** (United States): Say hello to a neighbour, maybe bring a plate of cookies. - **World School Milk Day** (Worldwide): A day highlighting milk in schools. Have a glass yourself! - **Universal Access to Information Day** (Worldwide): Access to reliable information is everyone's right. - **Good Neighbor Day** (fun day): Smile at your neighbour today, or maybe bring them a treat. - Around the world: **St. Wenceslas Day (Czech Statehood Day)** — Czechia - Around the world: **Teachers' Day** — Taiwan ### Wednesday, September 29, 2027 September 29, 2027 is Awareness of Food Loss and Waste Day. And a fun one: World Heart Day. - **Awareness of Food Loss and Waste Day** (Worldwide): Stale bread becomes a new dish, dried fruit becomes compote. No waste! - **World Heart Day** (fun day): Walk 30 minutes today for your heart. - Around the world: **Boqueron Battle Victory Day** — Paraguay ### Thursday, September 30, 2027 September 30, 2027 is World Maritime Day. It is also International Translation Day. And a fun one: Chewing Gum Day. - **World Maritime Day** (Worldwide): A day for shipping, which carries most of world trade, and the people who work in it. - **International Translation Day** (Worldwide): A day for the translators who connect the world. - **Chewing Gum Day** (fun day): Chew a gum and blow a bubble: who can make the biggest one? - Around the world: **National Day for Truth and Reconciliation** — Canada - Around the world: **Independence Day** — Botswana - Around the world: **Boy's Day** — Poland - 1 more day around the world in the app: https://apps.apple.com/app/id6822815713 ## FAQ ### What are the holidays in September 2027? Key dates in September 2027: Labor Day (September 6), Patriot Day (9/11 Remembrance) (September 11), Grandparents Day (September 12), Constitution Day (September 17), Gold Star Mother's and Family's Day (September 26) and National Good Neighbor Day (September 28). Every day of the month, with world days and fun days, is listed on this page. ### When is Labor Day 2027? Labor Day 2027 is on Monday, September 6, 2027. Honouring American workers, and the last long weekend of summer. ### When is Patriot Day (9/11 Remembrance) 2027? Patriot Day (9/11 Remembrance) 2027 is on Saturday, September 11, 2027. Remembering those who lost their lives in 2001. ### When is Grandparents Day 2027? Grandparents Day 2027 is on Sunday, September 12, 2027. Don't forget to call your grandparents today. ### When is Constitution Day 2027? Constitution Day 2027 is on Friday, September 17, 2027. Marking the signing of the U.S. Constitution in 1787.