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September is the ninth month of the year in both the Julian and
Gregorian calendar The Gregorian calendar is the calendar used in most parts of the world. It was introduced in October 1582 by Pope Gregory XIII as a modification of, and replacement for, the Julian calendar. The principal change was to space leap years d ...
s, the third of four months to have a length of 30 days, and the fourth of five months to have a length of fewer than 31 days. September in the
Northern Hemisphere The Northern Hemisphere is the half of Earth that is north of the Equator. For other planets in the Solar System, north is defined as being in the same celestial hemisphere relative to the invariable plane of the solar system as Earth's Nort ...
and March in the Southern Hemisphere are seasonally equivalent. In the Northern hemisphere, the beginning of the meteorological autumn is on 1 September. In the Southern hemisphere, the beginning of the meteorological
spring Spring(s) may refer to: Common uses * Spring (season), a season of the year * Spring (device), a mechanical device that stores energy * Spring (hydrology), a natural source of water * Spring (mathematics), a geometric surface in the shape of a h ...
is on 1 September.  September marks the beginning of the
ecclesiastical year The liturgical year, also called the church year, Christian year or kalendar, consists of the cycle of liturgical seasons in Christian churches that determines when feast days, including celebrations of saints, are to be observed, and whic ...
in the
Eastern Orthodox Church The Eastern Orthodox Church, also called the Orthodox Church, is the second-largest Christian church, with approximately 220 million baptized members. It operates as a communion of autocephalous churches, each governed by its bishops via ...
. It is the start of the academic year in many countries of the northern hemisphere, in which children go back to school after the summer break, sometimes on the first day of the month. September (from Latin ''septem'', "seven") was originally the seventh of ten months in the oldest known
Roman calendar The Roman calendar was the calendar used by the Roman Kingdom and Roman Republic. The term often includes the Julian calendar established by the reforms of the dictator Julius Caesar and emperor Augustus in the late 1stcenturyBC and some ...
, the calendar of Romulus , with March (Latin '' Martius'') the first month of the year until perhaps as late as 451 BC. After the calendar reform that added January and February to the beginning of the year, September became the ninth month but retained its name. It had 29 days until the Julian reform, which added a day.


September events

Ancient Roman observances for September include
Ludi Romani The ''Ludi Romani'' ("Roman Games"; see '' ludi'') was a religious festival in ancient Rome. Usually including multiple ceremonies called '' ludi''. They were held annually starting in 366 BC from September 12 to September 14, later extended to ...
, originally celebrated from September 12 to September 14, later extended to September 5 to September 19. In the 1st century BC, an extra day was added in honor of the deified Julius Caesar on 4 September.
Epulum Jovis In ancient Roman religion, the Epulum Jovis (also Epulum Iovis) was a sumptuous ritual feast offered to Jove on the Ides of September (September 13) and a smaller feast on the Ides of November (November 13). It was celebrated during the '' Ludi ...
was held on September 13.
Ludi Triumphales In the Roman Empire of the 4th century, the ''Ludi Triumphales'' ("Triumphal Games") were games ''( ludi)'' held annually September 18–22 to commemorate the victory of Constantine over Licinius at Chalcedon in 324. No description of these games ...
was held from September 18–22. The
Septimontium The Septimontium was a proto-urban festival celebrated in ancient Rome by ''montani'', residents of the seven ''(sept-)'' communities associated with the hills or peaks of Rome ''(montes)'': Oppius, Palatium, Velia, Fagutal, Cermalus, Caelius, ...
was celebrated in September, and on December 11 on later calendars. These dates do not correspond to the modern Gregorian calendar. September was called "harvest month" in
Charlemagne Charlemagne ( , ) or Charles the Great ( la, Carolus Magnus; german: Karl der Große; 2 April 747 – 28 January 814), a member of the Carolingian dynasty, was King of the Franks from 768, King of the Lombards from 774, and the first E ...
's calendar. September corresponds partly to the
Fructidor Fructidor () is the twelfth month in the French Republican Calendar. The month was named after the Latin word ''fructus'', which means "fruit". Fructidor is the third month of the summer quarter (''mois d'été''). By the Gregorian calendar, ...
and partly to the
Vendémiaire Vendémiaire () was the first month in the French Republican calendar. The month was named after the Occitan word ''vendemiaire'' (grape harvester). Vendémiaire was the first month of the autumn quarter (''mois d'automne''). It started on the ...
of the first French republic. September is called ''Herbstmonat'', harvest month, in Switzerland. The
Anglo-Saxon The Anglo-Saxons were a cultural group who inhabited England in the Early Middle Ages. They traced their origins to settlers who came to Britain from mainland Europe in the 5th century. However, the ethnogenesis of the Anglo-Saxons happened wit ...
s called the month ''Gerstmonath'', barley month, that crop being then usually harvested. In 1752, the
British Empire The British Empire was composed of the dominions, colonies, protectorates, mandates, and other territories ruled or administered by the United Kingdom and its predecessor states. It began with the overseas possessions and trading posts e ...
adopted the
Gregorian calendar The Gregorian calendar is the calendar used in most parts of the world. It was introduced in October 1582 by Pope Gregory XIII as a modification of, and replacement for, the Julian calendar. The principal change was to space leap years d ...
. In the British Empire that year,
September 2 Events Pre-1600 *44 BC – Pharaoh Cleopatra VII of Egypt declares her son co-ruler as Ptolemy XV Caesarion. * 44 BC – Cicero launches the first of his '' Philippicae'' (oratorical attacks) on Mark Antony. He will make 14 of t ...
was immediately followed by September 14. On
Usenet Usenet () is a worldwide distributed discussion system available on computers. It was developed from the general-purpose Unix-to-Unix Copy (UUCP) dial-up network architecture. Tom Truscott and Jim Ellis conceived the idea in 1979, and it wa ...
, it is said that September 1993 (
Eternal September Eternal September or the September that never ended is Usenet slang for a period beginning around 1993 when Internet service providers began offering Usenet access to many new users. The flood of new users overwhelmed the existing culture for onl ...
) never ended.


September in astronomy and astrology

The
September equinox The September equinox (or southward equinox) is the moment when the Sun appears to cross the celestial equator, heading southward. Because of differences between the calendar year and the tropical year, the September equinox may occur anyt ...
takes place in this month, and certain observances are organized around it. It is the Autumn equinox in the Northern Hemisphere, and the Vernal equinox in the Southern Hemisphere. The dates can vary from 21 September to 24 September (in UTC). September is mostly in the sixth month of the astrological calendar (and the first part of the seventh), which begins at the end of March/Mars/Aries.


September symbols

* September's birthstone is the
sapphire Sapphire is a precious gemstone, a variety of the mineral corundum, consisting of aluminium oxide () with trace amounts of elements such as iron, titanium, chromium, vanadium, or magnesium. The name sapphire is derived via the Latin "sa ...
. *The birth flowers for September are the forget-me-not, morning glory and aster. * The
zodiac The zodiac is a belt-shaped region of the sky that extends approximately 8° north or south (as measured in celestial latitude) of the ecliptic, the apparent path of the Sun across the celestial sphere over the course of the year. The pa ...
signs for the month of September are Virgo (until September 22) and Libra (September 23 onwards).. Signs in UT/GMT for 1950–2030.


Observances

''This list does not necessarily imply either official status or general observance.''


Non-Gregorian observances: 2020 dates

* List of observances set by the Bahá'í calendar * List of observances set by the Chinese calendar * List of observances set by the Hebrew calendar * List of observances set by the Islamic calendar * List of observances set by the Solar Hijri calendar


Month-long observances

*
Amerindian Heritage Month (Guyana) Welcome to Micobie! — Heritage Village 2012 guyanachronicle.com/2012/09/09/welcome-to-micobie-heritage-village-2012 Amerindian Heritage Month is an annual observance that is held every September in Guyana in honour of Guyana's indigenous peoples. ...
*
Childhood Cancer Awareness Month Young Lives vs Cancer, the operating name for "CLIC Sargent", is a charity in the United Kingdom formed in 2005. Young Lives vs Cancer is the UK's leading cancer charity for children, young people and their families. Its care teams provide speci ...
(United Kingdom) *Gynecologic Cancer Awareness Month *Leukemia and Lymphoma Awareness Month *Ovarian Cancer Awareness Month *Thyroid Cancer Awareness Month *National Suicide Prevention Month


United States observances

* Better Breakfast Month * Food Safety Education Month * National Childhood Obesity Awareness Month * Hydrocephalus Awareness Month * Pain Awareness Month * National Preparedness Month *
National Prostate Health Month National Prostate Health Month (NPHM), also known as National Prostate Cancer Awareness Month, is observed every September in North America by health experts, health advocates, and individuals concerned with men's prostate health and prostate canc ...
* National Sickle Cell Awareness Month *
National Yoga Month Yoga as exercise is a physical activity consisting mainly of asana, postures, often connected by vinyasa, flowing sequences, sometimes accompanied by pranayama, breathing exercises, and frequently ending with savasana, relaxation lying down or ...


= Food Months

= * National Bourbon Heritage Month * California Wine Month * National Chicken Month *
National Honey Month National Honey Month is a celebratory and promotional event held annually during the month of September in the United States. Its purpose is to promote American beekeeping, the beekeeping industry, and honey as a natural and beneficial sweete ...
* National Mushroom Month * National Italian Cheese Month * National Papaya Month * National Potato Month * National Rice Month * National Whole Grains Month * National Wild Rice Month


Movable Gregorian observances

* Engineering Day (Egypt) *
White Balloon Day White Balloon Day is a symbol of support for survivors of child sexual abuse. It first began after a public meeting in Belgium in October 1996, when 300,000 people gathered with white balloons to show public sympathy and support for the parents o ...
*
Day of the Programmer Programmer's Day, also known as the Day of the Programmer, is a professional day that is celebrated in Russian Federation on the 256th (hexadecimal 100th, or the 28th) day of each year (September 13 during common years and on September 12 in leap ...
*
Te Wiki o te Reo Māori ( en, Māori Language Week) is a government-sponsored initiative intended to encourage New Zealanders to promote the use of the Māori language which is an official language of the country. Māori Language Week is part of a broader movement to ...
(Māori Language Week) (
New Zealand New Zealand ( mi, Aotearoa ) is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and over 700 smaller islands. It is the sixth-largest island coun ...
) *See also Movable Western Christian observances *See also Movable Eastern Christian observances


First Wednesday

* Administrative Professionals' Day (
South Africa South Africa, officially the Republic of South Africa (RSA), is the southernmost country in Africa. It is bounded to the south by of coastline that stretch along the South Atlantic and Indian Oceans; to the north by the neighbouring coun ...
)


First Thursday

* Engineer's Days (
Tanzania Tanzania (; ), officially the United Republic of Tanzania ( sw, Jamhuri ya Muungano wa Tanzania), is a country in East Africa within the African Great Lakes region. It borders Uganda to the north; Kenya to the northeast; Comoro Islands ...
)


First Friday

* Engineer's Days (
Tanzania Tanzania (; ), officially the United Republic of Tanzania ( sw, Jamhuri ya Muungano wa Tanzania), is a country in East Africa within the African Great Lakes region. It borders Uganda to the north; Kenya to the northeast; Comoro Islands ...
) * Labor Day (
Marshall Islands The Marshall Islands ( mh, Ṃajeḷ), officially the Republic of the Marshall Islands ( mh, Aolepān Aorōkin Ṃajeḷ),'' () is an independent island country and microstate near the Equator in the Pacific Ocean, slightly west of the Inte ...
) * Teachers' Day (
Singapore Singapore (), officially the Republic of Singapore, is a sovereign island country and city-state in maritime Southeast Asia. It lies about one degree of latitude () north of the equator, off the southern tip of the Malay Peninsula, bor ...
)


First Sunday

*
Brazilian Day Brazilian Day is an annual festival which takes place in New York City (NYC) and other cities around the world. It is held near the beginning of September to celebrate Brazil's independence day celebrated today in the Federative Republic of Bra ...
( International observance) * Father's Day (
Australia Australia, officially the Commonwealth of Australia, is a sovereign country comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands. With an area of , Australia is the largest country by ...
,
Fiji Fiji ( , ,; fj, Viti, ; Fiji Hindi: फ़िजी, ''Fijī''), officially the Republic of Fiji, is an island country in Melanesia, part of Oceania in the South Pacific Ocean. It lies about north-northeast of New Zealand. Fiji consis ...
,
New Zealand New Zealand ( mi, Aotearoa ) is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and over 700 smaller islands. It is the sixth-largest island coun ...
,
Papua New Guinea Papua New Guinea (abbreviated PNG; , ; tpi, Papua Niugini; ho, Papua Niu Gini), officially the Independent State of Papua New Guinea ( tpi, Independen Stet bilong Papua Niugini; ho, Independen Stet bilong Papua Niu Gini), is a country i ...
) *
Memorial of the Holy Guardian Angels The Memorial of the Holy Guardian Angels is a memorial of the Catholic Church officially observed on 2 October. In some places, the feast is observed on the first Sunday in September with the permission of the Congregation for Divine Worship. Ca ...
(
Roman Catholic Church The Catholic Church, also known as the Roman Catholic Church, is the largest Christian church, with 1.3 billion baptized Catholics worldwide . It is among the world's oldest and largest international institutions, and has played a ...
, October 2 in most locations, first Sunday in September by special dispensation)


First Sunday after September 4

* Wakes Week (Parts of
England England is a country that is part of the United Kingdom. It shares land borders with Wales to its west and Scotland to its north. The Irish Sea lies northwest and the Celtic Sea to the southwest. It is separated from continental Europe ...
and
Scotland Scotland (, ) is a country that is part of the United Kingdom. Covering the northern third of the island of Great Britain, mainland Scotland has a border with England to the southeast and is otherwise surrounded by the Atlantic Ocean to ...
) ** Abbots Bromley Horn Dance ( Abbots Bromley,
Staffordshire Staffordshire (; postal abbreviation Staffs.) is a landlocked county in the West Midlands region of England. It borders Cheshire to the northwest, Derbyshire and Leicestershire to the east, Warwickshire to the southeast, the West Midlands C ...
,
England England is a country that is part of the United Kingdom. It shares land borders with Wales to its west and Scotland to its north. The Irish Sea lies northwest and the Celtic Sea to the southwest. It is separated from continental Europe ...
)


Week of the First Monday

*
National Payroll Week National Payroll Week (NPW) is a national awareness campaign held annually during the week of Labor Day, hosted by the American Payroll Association (APA) in the United States, the Chartered Institute of Payroll Professionals (CIPP) in the UK, and ...
(
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
,
Canada Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by to ...
,
United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Europe, off the north-western coast of the continental mainland. It comprises England, Scotland, Wales and ...
)


Week of September 10

*
National Suicide Prevention Week National Suicide Prevention Week (NSPW) is an annual week-long campaign in the United States to inform and engage health professionals and the general public about suicide prevention and warning signs of suicide. By drawing attention to the proble ...
(
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
)


First Monday

* Labour Day (
Canada Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by to ...
,
Palau Palau,, officially the Republic of Palau and historically ''Belau'', ''Palaos'' or ''Pelew'', is an island country and microstate in the western Pacific. The nation has approximately 340 islands and connects the western chain of the ...
,
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
)


Nearest weekday to September 12

* Saragarhi Day (
Sikhism Sikhism (), also known as Sikhi ( pa, ਸਿੱਖੀ ', , from pa, ਸਿੱਖ, lit=disciple', 'seeker', or 'learner, translit=Sikh, label=none),''Sikhism'' (commonly known as ''Sikhī'') originated from the word ''Sikh'', which comes fro ...
) * Patriot Day (
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
)


Second Saturday

* Day of the Workers in the Oil, Gas, Power, and Geological Industry (
Turkmenistan Turkmenistan ( or ; tk, Türkmenistan / Түркменистан, ) is a country located in Central Asia, bordered by Kazakhstan to the northwest, Uzbekistan to the north, east and northeast, Afghanistan to the southeast, Iran to the s ...
)


Saturday after first Monday

* Carl Garner Federal Lands Cleanup Day (
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
)


Second Sunday

* Auditor's Day ( Church of Scientology) * Father's Day (
Latvia Latvia ( or ; lv, Latvija ; ltg, Latveja; liv, Leţmō), officially the Republic of Latvia ( lv, Latvijas Republika, links=no, ltg, Latvejas Republika, links=no, liv, Leţmō Vabāmō, links=no), is a country in the Baltic region of ...
) *
National Grandparents' Day Grandparents' Day or National Grandparents' Day is a secular holiday celebrated in various countries; it is celebrated to show the bond between grandparents and grandchildren. It occurs on various days of the year, either as one holiday or someti ...
(
Canada Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by to ...
,
Estonia Estonia, formally the Republic of Estonia, is a country by the Baltic Sea in Northern Europe. It is bordered to the north by the Gulf of Finland across from Finland, to the west by the sea across from Sweden, to the south by Latvia, an ...
) * Tanker's Day (
Russia Russia (, , ), or the Russian Federation, is a transcontinental country spanning Eastern Europe and Northern Asia. It is the largest country in the world, with its internationally recognised territory covering , and encompassing one-ei ...
) * Turkmen Bakhshi Day (
Turkmenistan Turkmenistan ( or ; tk, Türkmenistan / Түркменистан, ) is a country located in Central Asia, bordered by Kazakhstan to the northwest, Uzbekistan to the north, east and northeast, Afghanistan to the southeast, Iran to the s ...
)


First Sunday after first Monday

*
National Grandparents' Day Grandparents' Day or National Grandparents' Day is a secular holiday celebrated in various countries; it is celebrated to show the bond between grandparents and grandchildren. It occurs on various days of the year, either as one holiday or someti ...
(
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
)


Week of September 17

*
Celebrate Freedom Week Celebrate Freedom Week is an official holiday celebrated by five U.S. states. Celebrate Freedom Week is a week designed to emphasize the teaching of the country's origins with an emphasis on the founding documents. The curriculum is taught to childr ...
(
Kansas Kansas () is a U.S. state, state in the Midwestern United States, Midwestern United States. Its Capital city, capital is Topeka, Kansas, Topeka, and its largest city is Wichita, Kansas, Wichita. Kansas is a landlocked state bordered by Nebras ...
and
Texas Texas (, ; Spanish: ''Texas'', ''Tejas'') is a state in the South Central region of the United States. At 268,596 square miles (695,662 km2), and with more than 29.1 million residents in 2020, it is the second-largest U.S. state by ...
,
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
)


Third Tuesday

* Prinsjesdag (
Netherlands ) , anthem = ( en, "William of Nassau") , image_map = , map_caption = , subdivision_type = Sovereign state , subdivision_name = Kingdom of the Netherlands , established_title = Before independence , established_date = Spanish Netherl ...
)


September 17 but observed on previous Friday if it falls on a Saturday or following Monday if on a Sunday

* Constitution Day (United States)


Third Friday

*
National POW/MIA Recognition Day In the United States, National POW/MIA Recognition Day is observed on the third Friday in September. It honors those who were prisoners of war (POWs) and those who are still missing in action (MIA). It is most associated with those who were POWs d ...
(
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
)


Third Saturday

* National Cleanup Day (United States) * Oktoberfest celebrations begin ( German diaspora, local dates may vary) * Software Freedom Day ( International observance)


Weekend of the week of September 17

* Von Steuben Day (
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
)


Third Sunday

* Day of the Walloon Region (
Wallonia Wallonia (; french: Wallonie ), or ; nl, Wallonië ; wa, Waloneye or officially the Walloon Region (french: link=no, Région wallonne),; nl, link=no, Waals gewest; wa, link=no, Redjon walone is one of the three regions of Belgium—al ...
,
Belgium Belgium, ; french: Belgique ; german: Belgien officially the Kingdom of Belgium, is a country in Northwestern Europe. The country is bordered by the Netherlands to the north, Germany to the east, Luxembourg to the southeast, France to ...
) * Father's Day (
Ukraine Ukraine ( uk, Україна, Ukraïna, ) is a country in Eastern Europe. It is the second-largest European country after Russia, which it borders to the east and northeast. Ukraine covers approximately . Prior to the ongoing Russian inva ...
) *
Federal Day of Thanksgiving, Repentance and Prayer The Federal Day of Thanksgiving, Repentance and Prayer (german: Eidgenössischer Dank-, Buss- und Bettag, french: Jeûne fédéral, it, Digiuno federale) is a public holiday in Switzerland. It is an interfaith feast observed by Roman Catholic dioc ...
(
Switzerland ). Swiss law does not designate a ''capital'' as such, but the federal parliament and government are installed in Bern, while other federal institutions, such as the federal courts, are in other cities (Bellinzona, Lausanne, Luzern, Neuchâtel ...
) *
Warachikuy During the Inca Empire Warachikuy (Quechua) was a ceremony where young men, after undergoing various tests of skill and valor, could receive the official status of an adult man. Today Warachikuy is still an important festival which represents the A ...
( Cusco,
Peru , image_flag = Flag of Peru.svg , image_coat = Escudo nacional del Perú.svg , other_symbol = Great Seal of the State , other_symbol_type = National seal , national_motto = "Firm and Happy f ...
)


Week of Sunday before September 23

* Bisexual Awareness Week


Week of September 22

* Tolkien Week


Last week

*
Banned Books Week Banned Books Week is an annual awareness campaign promoted by the American Library Association and Amnesty International, that celebrates the freedom to read, draws attention to banned and challenged books, and highlights persecuted individual ...
( International observance):


Last full week

* National Forest Week (
Canada Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by to ...
) ** National Tree Day (Wednesday of last full week): *
Celebrate Freedom Week Celebrate Freedom Week is an official holiday celebrated by five U.S. states. Celebrate Freedom Week is a week designed to emphasize the teaching of the country's origins with an emphasis on the founding documents. The curriculum is taught to childr ...
(
Arkansas Arkansas ( ) is a landlocked state in the South Central United States. It is bordered by Missouri to the north, Tennessee and Mississippi to the east, Louisiana to the south, and Texas and Oklahoma to the west. Its name is from the O ...
and
Florida Florida is a state located in the Southeastern region of the United States. Florida is bordered to the west by the Gulf of Mexico, to the northwest by Alabama, to the north by Georgia, to the east by the Bahamas and Atlantic Ocean, and ...
,
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
)


Third Monday

* Respect for the Aged Day (
Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the n ...
)


Observances pertaining to the

September Equinox The September equinox (or southward equinox) is the moment when the Sun appears to cross the celestial equator, heading southward. Because of differences between the calendar year and the tropical year, the September equinox may occur anyt ...

* Autumnal Equinox Day (
Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the n ...
) ** French Republican New Year. (defunct) *
Guldize Guldize, Gooldize (sometimes Dicklydize or Nickly Thize) is the harvest festival of the Cornish people. Guldize is an anglicization of Cornish ''Gool dheys'' "the feast of ricks" (i.e., grain stacks). The festival was held at the end of the wheat ...
(
Cornish people The Cornish people or Cornish ( kw, Kernowyon, ang, Cornƿīelisċ) are an ethnic group native to, or associated with Cornwall: and a recognised national minority in the United Kingdom, which can trace its roots to the ancient Britons ...
) * Higan (
Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the n ...
) * Mabon ( Neopaganism,
Northern Hemisphere The Northern Hemisphere is the half of Earth that is north of the Equator. For other planets in the Solar System, north is defined as being in the same celestial hemisphere relative to the invariable plane of the solar system as Earth's Nort ...
) *
Miķeļi Miķeļi nav gadskārta () or Miķeļdiena is a Latvian autumn equinox and annual harvest festival and market. Latvian Miķeļi dainas referred to good and rich husbands as bread fathers, who are associated with the autumn harvest ripening. In di ...
(
Latvia Latvia ( or ; lv, Latvija ; ltg, Latveja; liv, Leţmō), officially the Republic of Latvia ( lv, Latvijas Republika, links=no, ltg, Latvejas Republika, links=no, liv, Leţmō Vabāmō, links=no), is a country in the Baltic region of ...
) * Ostara ( Neopaganism, Southern Hemisphere)


Fourth Friday

*
Native American Day Native American Day is a holiday observed in several states in celebration of Native American culture. In California and Nevada, the holiday is designated on the fourth Friday of September, whereas in South Dakota and Wisconsin, it falls on the ...
(
California California is a state in the Western United States, located along the Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the most populous U.S. state and the 3rd largest by area. It is also the m ...
,
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
)


Last Friday

* Manit Day (
Marshall Islands The Marshall Islands ( mh, Ṃajeḷ), officially the Republic of the Marshall Islands ( mh, Aolepān Aorōkin Ṃajeḷ),'' () is an independent island country and microstate near the Equator in the Pacific Ocean, slightly west of the Inte ...
)


Last Saturday

* Girls in Aviation Day ( International observance) * National Public Lands Day (
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
)


Last Sunday

*
Daylight saving time Daylight saving time (DST), also referred to as daylight savings time or simply daylight time (United States, Canada, and Australia), and summer time (United Kingdom, European Union, and others), is the practice of advancing clocks (typicall ...
begins (
New Zealand New Zealand ( mi, Aotearoa ) is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and over 700 smaller islands. It is the sixth-largest island coun ...
) *
Gold Star Mother's Day A service flag or service banner is a banner that family members of those serving in the United States Armed Forces can display. The flag or banner is officially defined as a white field with a red border, with a blue star for each family member s ...
(
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
)


Fourth Monday

*
American Indian Day Native American Day is a holiday observed in several states in celebration of Native American culture. In California and Nevada, the holiday is designated on the fourth Friday of September, whereas in South Dakota and Wisconsin, it falls on ...
(
Tennessee Tennessee ( , ), officially the State of Tennessee, is a landlocked U.S. state, state in the Southeastern United States, Southeastern region of the United States. Tennessee is the List of U.S. states and territories by area, 36th-largest by ...
,
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
) * September Declaration (
Flanders Flanders (, ; Dutch: ''Vlaanderen'' ) is the Flemish-speaking northern portion of Belgium and one of the communities, regions and language areas of Belgium. However, there are several overlapping definitions, including ones related to cultu ...
,
Belgium Belgium, ; french: Belgique ; german: Belgien officially the Kingdom of Belgium, is a country in Northwestern Europe. The country is bordered by the Netherlands to the north, Germany to the east, Luxembourg to the southeast, France to ...
)


Last Wednesday

* Maple Leaf Day (
Canada Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by to ...
)


Last weekday in September

*
Ask a Stupid Question Day Ask a Stupid Question Day is a holiday that is sometimes celebrated in the United States, usually by school students and teachers. Although Ask a Stupid Question Day's default date is September 28, in practice it is usually observed on the last sc ...
(
India India, officially the Republic of India (Hindi: ), is a country in South Asia. It is the List of countries and dependencies by area, seventh-largest country by area, the List of countries and dependencies by population, second-most populous ...
,
United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Europe, off the north-western coast of the continental mainland. It comprises England, Scotland, Wales and ...
,
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
)


Fixed Gregorian observances

* September 1 ** Anniversary of the Start of the Armed Struggle (
Eritrea Eritrea ( ; ti, ኤርትራ, Ertra, ; ar, إرتريا, ʾIritriyā), officially the State of Eritrea, is a country in the Horn of Africa region of Eastern Africa, with its capital and largest city at Asmara. It is bordered by Ethiopi ...
) **
Constitution Day (Slovakia) National holidays in Slovakia See also Remembrance days in Slovakia. References Zákon č. 241/1993 Z. z. o štátnych sviatkoch, dňoch pracovného pokoja a pamätných dňochNational and Bank Holidays in Slovakia * Public holidays in the C ...
** Disaster Prevention Day (
Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the n ...
) ** Emma Nutt Day ( International observance) ** First day of school in many countries in Asia, Europe and the Americas. ** Flag Day (
Honduras Honduras, officially the Republic of Honduras, is a country in Central America. The republic of Honduras is bordered to the west by Guatemala, to the southwest by El Salvador, to the southeast by Nicaragua, to the south by the Pacific Oce ...
) ** Independence Day (Uzbekistan) **
Journalist Day The following are considered holidays in Taiwan. Some are official holidays, some are not: Table of Taiwan holidays Public holidays Unofficial holidays The following holidays are also observed on Taiwan, but are not official holidays obs ...
(
Taiwan Taiwan, officially the Republic of China (ROC), is a country in East Asia, at the junction of the East and South China Seas in the northwestern Pacific Ocean, with the People's Republic of China (PRC) to the northwest, Japan to the no ...
) ** Knowledge Day (
Russia Russia (, , ), or the Russian Federation, is a transcontinental country spanning Eastern Europe and Northern Asia. It is the largest country in the world, with its internationally recognised territory covering , and encompassing one-ei ...
,
Ukraine Ukraine ( uk, Україна, Ukraïna, ) is a country in Eastern Europe. It is the second-largest European country after Russia, which it borders to the east and northeast. Ukraine covers approximately . Prior to the ongoing Russian inva ...
and
Armenia Armenia (), , group=pron officially the Republic of Armenia,, is a landlocked country in the Armenian Highlands of Western Asia.The UNbr>classification of world regions places Armenia in Western Asia; the CIA World Factbook , , and ''O ...
) ** National Cherry Popover Day (
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
) ** Random Acts of Kindness Day (
New Zealand New Zealand ( mi, Aotearoa ) is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and over 700 smaller islands. It is the sixth-largest island coun ...
) **Start of
National Arbor Week Arbor Day (or Arbour in some countries) is a secular day of observance in which individuals and groups are encouraged to plant trees. Today, many countries observe such a holiday. Though usually observed in the spring, the date varies, dependi ...
(
South Africa South Africa, officially the Republic of South Africa (RSA), is the southernmost country in Africa. It is bounded to the south by of coastline that stretch along the South Atlantic and Indian Oceans; to the north by the neighbouring coun ...
), September 1–7 ** Veteran's Day (Poland) ** Teachers' Day (
Singapore Singapore (), officially the Republic of Singapore, is a sovereign island country and city-state in maritime Southeast Asia. It lies about one degree of latitude () north of the equator, off the southern tip of the Malay Peninsula, bor ...
) **Wattle Day (
Australia Australia, officially the Commonwealth of Australia, is a sovereign country comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands. With an area of , Australia is the largest country by ...
) *
September 2 Events Pre-1600 *44 BC – Pharaoh Cleopatra VII of Egypt declares her son co-ruler as Ptolemy XV Caesarion. * 44 BC – Cicero launches the first of his '' Philippicae'' (oratorical attacks) on Mark Antony. He will make 14 of t ...
**Parliament of the Central Tibetan Administration, Democracy Day (Tibet) **Independence Day (Transnistria, unrecognized) **Independence Day (Nagorno-Karabakh Republic, unrecognized) **List of food days#September, National Blueberry Popsicle Day (
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
) **National Day (Vietnam) **Sedantag (German Empire, defunct) **Victory over Japan Day (
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
) *September 3 **China's Victory over Japan Day, victory over Japan commemoration related observances: ***Armed Forces Day#Republic of China, Armed Forces Day (Republic of China) ***Victory over Japan Day#China, V-J Day (People's Republic of China) **Feast of San Marino and the Republic (Republic of San Marino) **Flag Day (Australia) **Independence Day (Qatar) **Levy Mwanawasa Day (Zambia) **Memorial Day (Tunisia) **Canadian Merchant Navy, Merchant Navy Remembrance Day (
Canada Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by to ...
) **Merchant Navy (United Kingdom) **List of food days#September, National Welsh Rarebit Day (
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
) **Public holidays in Tokelau, Tokehega Day (Tokelau,
New Zealand New Zealand ( mi, Aotearoa ) is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and over 700 smaller islands. It is the sixth-largest island coun ...
) *September 4 **Scientology holidays, Clear Day (Scientology) **Immigration to Argentina, Immigrant's Day (Argentina) **List of food days#September, National Macadamia Nut Day (
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
) **Newspaper Carrier Day (
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
) *September 5 **International Day of Charity **List of food days#September, National Cheese Pizza Day (
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
) ** Teachers' Day (
India India, officially the Republic of India (Hindi: ), is a country in South Asia. It is the List of countries and dependencies by area, seventh-largest country by area, the List of countries and dependencies by population, second-most populous ...
) *September 6 **Public holidays in São Tomé and Príncipe, Armed Forces Day (São Tomé and Príncipe) **Public holidays in Pakistan, Defence Day or Armed Forces Day#Pakistan, Army Day (Pakistan) ** Flag Day (Bonaire) **Independence Day (Eswatini) **List of food days#September, National Coffee Ice Cream Day (
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
) **Unification Day (Bulgaria) *September 7 **Air Force Day (Pakistan) **Independence Day (Brazil) **Armed Forces of Ukraine#Military holidays, Military Intelligence Day (Ukraine) **List of food days#September, National Acorn Squash Day (
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
) **List of food days#September, National Beer Lover's Day (
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
) **List of food days#September, National Salami Day (
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
) **Benjamin the thylacine, National Threatened Species Day (
Australia Australia, officially the Commonwealth of Australia, is a sovereign country comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands. With an area of , Australia is the largest country by ...
) **Public holidays in Mozambique, Victory Day (Mozambique) *September 8 **Days of Military Honour, Day of the Battle of Borodino (Russia) **Our Lady of Meritxell, Feast Day of Our Lady of Meritxell (Andorra) **Independence Day (North Macedonia) **International Literacy Day **Martyrs' Day (Afghanistan) (date may fall on September 9, follows a non-Gregorian calendar) **National day (Andorra) **Nativity of Mary (
Roman Catholic Church The Catholic Church, also known as the Roman Catholic Church, is the largest Christian church, with 1.3 billion baptized Catholics worldwide . It is among the world's oldest and largest international institutions, and has played a ...
), (Anglo-Catholicism) ***Monti Fest (Mangalorean Catholic) **Victory Day#September 8 in Pakistan, Victory Day (Pakistan) **Victory Day (Malta) **World Physical Therapy Day *September 9 **Armed Forces of Ukraine#Military holidays, Armored Forces Day (Ukraine) **California Admission Day (
California California is a state in the Western United States, located along the Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the most populous U.S. state and the 3rd largest by area. It is also the m ...
, United States) **Children's Day (Costa Rica) **Chrysanthemum Day (Japanese calendar#National holidays, Japan) **Remembrance days in Slovakia, Day of the Victims of Holocaust and of Racial Violence (Slovakia) **Emergency Services Day (United_Kingdom), Emergency Services Day (United Kingdom) **Public holidays in North Korea, Independence Day or Republic Day (North Korea) **Independence Day (Tajikistan) from USSR in 1991. **Martyrs' Day (Afghanistan) (date may fall on September 8, follows a non-Gregorian calendar) **List of food days#September, National Steak Au Poivre Day (United States) **Ásatrú holidays#The Troth, Remembrance for Herman the Cheruscan (The Troth) **List of food days#September, Wienerschnitzel Day (United States) **Thomas Roy#List of days, Wonderful Weirdos Day *September 10 **Amerindian Heritage Month (Guyana), Amerindian Heritage Day (Guyana) **Children's Day (Honduras) **Gibraltar National Day, National Day (Gibraltar) **List of food days#September, National TV Dinner Day (
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
) **Saint George's Caye Day (Belize) ** Teachers' Day (China) **World Suicide Prevention Day *September 11 **Days of Military Honour, Battle of Tendra Day (Russia) **Muhammad Ali Jinnah, Death Anniversary of Quaid-e-Azam Muhammad Ali Jinnah, a former holiday. (Pakistan) **List of observances in the United States by presidential proclamation#Annual special days recognized by presidential proclamation, Emergency Number Day (United States) **Enkutatash falls on this day if it is not a leap year.(Ethiopia, Rastafari) **National Day of Catalonia (Catalonia) **List of food days#September, National Hot Cross Bun Day (United States) **Nayrouz (Coptic Orthodox Church) ** Patriot Day (United States) **Thomas Roy#List of days, Remember Freedom Day ** Teachers' Day (Argentina) *September 12 **Most Holy Name of the Blessed Virgin Mary **Day of Conception (Russia) **
Day of the Programmer Programmer's Day, also known as the Day of the Programmer, is a professional day that is celebrated in Russian Federation on the 256th (hexadecimal 100th, or the 28th) day of each year (September 13 during common years and on September 12 in leap ...
, during a leap year. (International) **Defenders Day (Maryland), Defenders Day (Maryland. (United States) **Enkutatash falls on this day if it is a leap year. (Ethiopia, Rastafari) **Mindfulness Day **List of food days#September, National Chocolate Milkshake Day (United States) **Public holidays in Cape Verde, National Day (Cape Verde) **National Day of Encouragement (United States) ** Saragarhi Day (
Sikhism Sikhism (), also known as Sikhi ( pa, ਸਿੱਖੀ ', , from pa, ਸਿੱਖ, lit=disciple', 'seeker', or 'learner, translit=Sikh, label=none),''Sikhism'' (commonly known as ''Sikhī'') originated from the word ''Sikh'', which comes fro ...
) (this day or nearest weekday, 2015 date: September 11) *September 13 **
Day of the Programmer Programmer's Day, also known as the Day of the Programmer, is a professional day that is celebrated in Russian Federation on the 256th (hexadecimal 100th, or the 28th) day of each year (September 13 during common years and on September 12 in leap ...
, during a non-leap year. (International) **Feast of the Cross#September 13, Feast of the Cross (Assyrian Church of the East) **''Niños Héroes, Día de los Niños Héroes'' (Mexico) ** Engineer's Day (Mauritius) **International Chocolate Day **List of food days#September, National Peanut Day (
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
) * September 14 **Children's Day#Nepal, Children's Day (Nepal) (celebrated on the 15th on leap years) ** Engineer's Day (Romania) **Feast of the Cross (Christianity) ***Elevation of the Holy Cross (Eastern Orthodox) **Hindi Diwas (Hindi Belt, Hindi-speaking regions) **Armed Forces of Ukraine#Military holidays, Mobilized Servicemen Day (Ukraine) **List of food days#September, National Cream Filled Donut Day (
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
) **List of food days#September, National Eat a Hoagie Day (United States) **Battle of San Jacinto (1856), San Jacinto Day (Nicaragua) *September 15 **Battle of Britain#Battle of Britain Day, Battle of Britain Day (United Kingdom) **Children's Day#Nepal, Children's Day (Nepal) (leap years only) ** Engineer's Day (India) **Free Money Day (International) **Independence Day (Guatemala, El Salvador, Honduras, Nicaragua, and Costa Rica) **International Day of Democracy (International observance, International) **Public holidays in Azerbaijan#Other observances, Knowledge Day (Azerbaijan) **List of food days#September, National Crème de Menthe Day (
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
) **List of food days#September, National Double Cheeseburger Day (
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
) **List of food days#September, National Linguine Day (
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
) **List of food days#September, National Cheese Toast Day (
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
) **Días Patrios (Guatemala), Patriotic Day (Guatemala) **Public holidays in Slovenia, Restoration of Primorska to the Motherland Day (Slovenia) **Silpa Bhirasri, Silpa Bhirasri Day (Thailand). **World Lymphoma Awareness Day **The beginning of National Hispanic Heritage Month, celebrated until October 15 (United States) *September 16 **Grito de Dolores (Mexico) **Independence Day (Papua New Guinea), celebrates the independence of Papua New Guinea from Australia in 1975. **International Day for the Preservation of the Ozone Layer **Armed Forces Day#Malaysia, Malaysian Armed Forces Day (Malaysia) **Malaysia Day (Malaysia, Singapore) **Martyrs' Day#Libya, Martyrs' Day (Libya) **National Heroes Day (Saint Kitts and Nevis), Heroes' Day (Saint Kitts and Nevis) **List of food days#September, National Cinnamon Raisin Toast Day (
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
) **List of food days#September, National Guacamole Day (
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
) **Thomas Roy#List of days, Stay Away from Seattle Day *September 17 **Australian Citizenship Day ** Constitution Day (United States) (observed on the previous Friday if it falls on a Saturday, the following Monday if on a Sunday) **Start of Constitution Week, runs from September 17–23 **Heroes' Day (Angola) **Marathwada Liberation Day (India) **List of food days#September, National Apple Dumpling Day (
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
) **List of food days#September, National Monte Cristo Sandwich Day (
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
) **Operation Market Garden, Operation Market Garden Anniversary is still remembered with parachuting and dedications on this day. (Netherlands) ** Teachers' Day (Honduras) ** Von Steuben Day. (United States), weekend of the week of September 17. *September 18 **Day of National Music (Azerbaijan) **First day of Fiestas Patrias (Chile) or ''Dieciocho'' (Chile) **Ryukyuan languages#Status, Island Language Day (Okinawa Prefecture, Japan) **List of food days#September, National Cheeseburger Day (
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
) **Navy Day (Croatia) **World Water Monitoring Day (International observance, International) *September 19 **Armed Forces Day (Chile) **Day of the First Public Appearance of the Slovak National Council **Feast of San Gennaro **Second day of Fiestas Patrias (Chile) **Independence Day (Saint Kitts and Nevis) **International Talk Like a Pirate Day **List of food days#September, National Butterscotch Pudding Day (
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
) *September 20 **Independence Day of South Ossetia (not fully recognized) **List of food days#September, National Pepperoni Pizza Day (
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
) **List of food days#September, National Punch Day (
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
) **List of food days#September, National Rum Punch Day (
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
) **National Youth Day (Thailand) **Oil Workers' Day (Azerbaijan) **Universal Children's Day (Germany) *September 21 **Arbor Day (Brazil) **Proclamation No. 1081, Commemoration of the Declaration of Martial Law (Philippines) **Customs Service Day (Poland) **Founder's Day (Ghana), Founder's Day and National Volunteer Day (Ghana) **Independence Day (Armenia), Independence Day, celebrates the independence of
Armenia Armenia (), , group=pron officially the Republic of Armenia,, is a landlocked country in the Armenian Highlands of Western Asia.The UNbr>classification of world regions places Armenia in Western Asia; the CIA World Factbook , , and ''O ...
from the Soviet Union in 1991. **Independence Day (Belize), Independence Day, celebrates the independence of Belize from the United Kingdom in 1981. **Independence Day (Malta), Independence Day, celebrates the independence of Malta from the United Kingdom in 1964. **International Day of Peace (International observance, International) **List of food days#September, National Pecan Cookie Day (
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
) **September (Earth, Wind & Fire song), Acknowledgement of Earth, Wind, & Fire's "September" **Student's Day (Bolivia) **Victory over the Golden Horde in the Battle of Kulikovo (Russia) *September 22 **American Business Women's Day (
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
) **Thomas Roy#List of days, Dear Diary Day **Hobbit Day, the containing week is celebrated as Tolkien Week. (Tolkien fandom, American Tolkien Society) **Independence Day (Bulgaria), Independence Day, celebrates the independence of Bulgaria from the Ottoman Empire in 1908. **Independence Day (Mali), Independence Day, celebrates the independence of Mali from France in 1960. **OneWebDay, an annual day of Internet celebration and awareness, started in 2006. **Resistance Fighting Day (
Estonia Estonia, formally the Republic of Estonia, is a country by the Baltic Sea in Northern Europe. It is bordered to the north by the Gulf of Finland across from Finland, to the west by the sea across from Sweden, to the south by Latvia, an ...
) **World Car-Free Day *September 23 **Celebrate Bisexuality Day **Grito de Lares (Puerto Rico) **Holocaust Memorial Day (Lithuania) **Public holidays in Kyrgyzstan, Kyrgyz Language Day (Kyrgyzstan) **Saudi National Day, National Day (Saudi Arabia) **Teachers' Day (Brunei) *September 24 **Armed Forces Day (Peru) **Constitution Day (Cambodia) **La Mercè (Barcelona) **Heritage Day (South Africa) **Independence Day (Guinea-Bissau) **Mahidol Day (Thailand) **National Punctuation Day (
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
) **New Caledonia Day (New Caledonia) **Republic Day (Trinidad and Tobago) *September 25 **Harki, Day of National Recognition for the Harkis (France) **List of food days#Germany, German Butterbrot Day (Germany) **List of food days#September, National Lobster Day (
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
) **Public holidays in Nauru, National Youth Day (Nauru) **Public holidays in Mozambique, Revolution Day (Mozambique) *September 26 **Flag Day, Day of the National Flag (Ecuador) **Dominion Day (
New Zealand New Zealand ( mi, Aotearoa ) is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and over 700 smaller islands. It is the sixth-largest island coun ...
) **European Day of Languages (European Union) **List of food days#September, Johnny Appleseed Day (
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
) **List of food days#September, National Better Breakfast Day (
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
) **List of food days#September, National Dumpling Day (
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
) **National Good Neighbor Day (
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
) **List of food days#September, National Pancake Day (
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
) **Yemen Arab Republic, Revolution Day (Yemen) *September 27 **Consumación de la Independencia (Mexico) **French Community Holiday (French community of Belgium) **Meskel (Ethiopian Orthodox Church, Ethiopian and Eritrean Orthodox Church, following Julian calendar, September 28 on leap years) **List of food days#September, National Chocolate Milk Day (
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
) **List of food days#September, National Corned Beef Hash Day (
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
) **AIDS.gov#External links, National Gay Men's HIV/AIDS Awareness Day (
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
) **Polish Underground State's Day (Poland) **World Tourism Day *September 28 **
Ask a Stupid Question Day Ask a Stupid Question Day is a holiday that is sometimes celebrated in the United States, usually by school students and teachers. Although Ask a Stupid Question Day's default date is September 28, in practice it is usually observed on the last sc ...
(
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
) **Czech Statehood Day (Czech Republic) **List of food days#September, Family Day – A Day to Eat Dinner with Your Children (
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
) **Thomas Roy#List of days, Fish Tank Floorshow Night **Freedom from Hunger Day **International Right to Know Day **Meskel (Ethiopian Orthodox Church, Ethiopian and Eritrean Orthodox Church, September 28 on leap years only, all other years is September 27) **National Day of Awareness and Unity against Child Pornography (Philippines) ** Teachers' Day (
Taiwan Taiwan, officially the Republic of China (ROC), is a country in East Asia, at the junction of the East and South China Seas in the northwestern Pacific Ocean, with the People's Republic of China (PRC) to the northwest, Japan to the no ...
and Chinese-Filipino schools in the Philippines) **World Rabies Day *September 29 ** Feast of the Archangels Michael (archangel), Michael, Gabriel, and Raphael (archangel), Raphael. **List of food days#September, National Biscotti Day (
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
) **International Coffee Day, National Coffee Day (multiple countries, see article) **Inventors' Day (Argentina) **Michaelmas One of the four quarter days in the Irish calendar. (England and Ireland) **Victory of Boquerón Day (Paraguay) **World Heart Federation, World Heart Day *September 30 **Agricultural Reform (Nationalization) Day (São Tomé and Príncipe) **Birth of Morelos (Mexico) **Blasphemy Day (
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
,
Canada Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by to ...
, other countries) **Public holidays in Poland#Holidays declared by statute, Boy's Day (Poland) **Independence Day (Botswana) **International Translation Day (International Federation of Translators) **List of food days#September, National Hot Mulled Cider Day (
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
) **Recovery Day (
Canada Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by to ...
) **Orange Shirt Day (
Canada Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by to ...
)


References


External links

* * * {{Authority control September, Months, *09