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September is the ninth month of the year in the Julian and
Gregorian calendar The Gregorian calendar is the calendar used in most parts of the world. It went into effect in October 1582 following the papal bull issued by Pope Gregory XIII, which introduced it as a modification of, and replacement for, the Julian cale ...
s. Its length is 30 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 by humans as being in the same celestial sphere, celestial hemisphere relative to the invariable plane of the Solar ...
and
March March is the third month of the year in both the Julian and Gregorian calendars. Its length is 31 days. In the Northern Hemisphere, the meteorological beginning of spring occurs on the first day of March. The March equinox on the 20 or 2 ...
in the Southern Hemisphere are seasonally equivalent. In the Northern hemisphere, the beginning of the meteorological
autumn Autumn, also known as fall (especially in US & Canada), is one of the four temperate seasons on Earth. Outside the tropics, autumn marks the transition from summer to winter, in September (Northern Hemisphere) or March ( Southern Hemisphe ...
is on 1 September. In the Southern hemisphere, the beginning of the meteorological spring is on 1 September. September marks the beginning of the ecclesiastical year in the
Eastern Orthodox Church The Eastern Orthodox Church, officially the Orthodox Catholic Church, and also called the Greek Orthodox Church or simply the Orthodox Church, is List of Christian denominations by number of members, one of the three major doctrinal and ...
. It is the start of the
academic year An academic year, or school year, is a period that schools, colleges and university, universities use to measure the duration of studies for a given educational level. Academic years are often divided into academic terms. Students attend classe ...
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. Some
Libras Brazilian Sign Language ( ) is the sign language used by deaf communities of Brazil. It is commonly known in short as Libras (). Brazilian Sign Language (Libras) is a well-established language and legally recognized.Virgos are born in September, with Virgos being born on
September 1st Events Pre-1600 * 1145 – The main altar of Lund Cathedral, at the time the seat of the archiepiscopal see of all the Nordic countries, is consecrated. *1173 – The widow Stamira sacrifices herself in order to raise the siege of An ...
through
September 22nd Events Pre-1600 * 904 – The warlord Zhu Quanzhong kills Emperor Zhaozong, the penultimate emperor of the Tang dynasty, after seizing control of the imperial government. * 1236 – The Samogitians defeat the Livonian Brothers of th ...
and Libras
September 23rd Events Pre-1600 * 38 – Drusilla, Caligula's sister who died in June, with whom the emperor is said to have an incestuous relationship, is deified. * 1122 – Pope Callixtus II and Holy Roman Emperor Henry V agree to the Concord ...
through
September 30 Events Pre-1600 * 489 – The Ostrogoths under Theoderic the Great defeat the forces of Odoacer for the second time. * 737 – The Turgesh drive back an Umayyad invasion of Khuttal, follow them south of the Oxus, and capture thei ...
.
September September is the ninth month of the year in the Julian and Gregorian calendars. Its length is 30 days. September in the Northern Hemisphere and March in the Southern Hemisphere are seasonally equivalent. In the Northern hemisphere, the b ...
(from Latin ''septem'', "seven") was originally the seventh month in the oldest known
Roman calendar The Roman calendar was the calendar used by the Roman Kingdom and Roman Republic. Although the term is primarily used for Rome's pre-Julian calendars, it is often used inclusively of the Julian calendar established by Julius Caesar in 46&nbs ...
, the calendar of Romulus , with March being (Latin '' Martius'') the first month of the year until perhaps as late as 451 BC. After the calendar reform that added
January January is the first month of the year in the Julian calendar, Julian and Gregorian calendars. Its length is 31 days. The first day of the month is known as New Year's Day. It is, on average, the coldest month of the year within most of the No ...
and
February February is the second month of the year in the Julian calendar, Julian and Gregorian calendars. The month has 28 days in common years and 29 in leap years, with the February 29, 29th day being called the ''leap day''. February is the third a ...
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.


Events

Ancient Roman In modern historiography, ancient Rome is the Roman people, Roman civilisation from the founding of Rome, founding of the Italian city of Rome in the 8th century BC to the Fall of the Western Roman Empire, collapse of the Western Roman Em ...
observances for September include
Ludi Romani The ''Ludi Romani'' ("Roman Games"; see '' ludi'') was a religious festival in ancient Rome held annually, starting in 366 BC, from September 12 to September 14. In the 1st century BC, an extra day was added in honor of the deified Julius Caesa ...
, 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 (Roman month)#Dates, September 18–22 to commemorate the victory of Constantine I, Constantine over Licinius at Batt ...
was held from September 18–22. The
Septimontium The Septimontium was a proto-Urban area, urban Roman festival, festival celebrated in ancient Rome by ''montani'', residents of the seven ''(sept-)'' communities associated with the hills or peaks of Rome ''(montes)'': Oppius, Palatine Hill, Palati ...
was celebrated in September, and on December 11 on later calendars. These dates do not correspond to the modern Gregorian calendar. September was called the "harvest month" in
Charlemagne Charlemagne ( ; 2 April 748 – 28 January 814) was List of Frankish kings, King of the Franks from 768, List of kings of the Lombards, King of the Lombards from 774, and Holy Roman Emperor, Emperor of what is now known as the Carolingian ...
'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'' 'fruit'. Fructidor is the third month of the summer quarter (''mois d'été''). By the Gregorian calendar, Fructidor starts ...
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 d ...
of the
first French republic In the history of France, the First Republic (), sometimes referred to in historiography as Revolutionary France, and officially the French Republic (), was founded on 21 September 1792 during the French Revolution. The First Republic lasted u ...
. September is called ''Herbstmonat'', harvest month, in Switzerland. The
Anglo-Saxon The Anglo-Saxons, in some contexts simply called Saxons or the English, were a Cultural identity, cultural group who spoke Old English and inhabited much of what is now England and south-eastern Scotland in the Early Middle Ages. They traced t ...
s called the month ''Gerstmonath'', barley month, that crop being then usually harvested. In 1752, the
British Empire The British Empire comprised the dominions, Crown colony, colonies, protectorates, League of Nations mandate, mandates, and other Dependent territory, territories ruled or administered by the United Kingdom and its predecessor states. It bega ...
adopted the
Gregorian calendar The Gregorian calendar is the calendar used in most parts of the world. It went into effect in October 1582 following the papal bull issued by Pope Gregory XIII, which introduced it as a modification of, and replacement for, the Julian cale ...
. 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 ...
was immediately followed by
September 14 Events Pre-1600 *AD 81 – Domitian became Emperor of the Roman Empire upon the death of his brother Titus. * 786 – "Night of the three Caliphs": Harun al-Rashid becomes the Abbasid caliph upon the death of his brother al-Hadi. Bir ...
. On
Usenet Usenet (), a portmanteau of User's Network, is a worldwide distributed discussion system available on computers. It was developed from the general-purpose UUCP, Unix-to-Unix Copy (UUCP) dial-up network architecture. Tom Truscott and Jim Elli ...
, it is said that September 1993 ( Eternal September) never ended. In the United States, September is one of the most common birth months (third most popular after August and July, which both have 31 days), as all but one Top 10 most common birthdays are in September, based on the
National Center for Health Statistics The National Center for Health Statistics (NCHS) is a U.S. government agency that provides statistical information to guide actions and policies to improve the public health of the American people. It is a unit of the Centers for Disease Control ...
statistics on births between 1994 and 2014. The most common birthday is September 9 (#1), least common is September 1 (#250).


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 from ...
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 Coordinated Universal Time (UTC) is the primary time standard globally used to regulate clocks and time. It establishes a reference for the current time, forming the basis for civil time and time zones. UTC facilitates international communica ...
). 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.


Symbols

September's
birthstone A birthstone is a gemstone that represents a person's birth period, usually the month or zodiac sign. Birthstones are often worn as jewelry or a pendant necklace. History of birthstones Western custom The first-century historian Josephus bel ...
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, cobalt, lead, chromium, vanadium, magnesium, boron, and silicon. The name ''sapphire ...
. The birth flowers are the
forget-me-not ''Myosotis'' ( ) is a genus of flowering plants in the family Boraginaceae. The name comes from the Ancient Greek "mouse's ear", which the foliage is thought to resemble. In the Northern Hemisphere, they are colloquially known as forget-me-no ...
,
morning glory Morning glory (also written as morning-glory) is the common name for over 1,000 species of flowering plants in the family Convolvulaceae, whose taxonomy and systematics remain in flux. These species are distributed across numerous genus, gene ...
and aster. The
zodiac The zodiac is a belt-shaped region of the sky that extends approximately 8° north and south celestial latitude of the ecliptic – the apparent path of the Sun across the celestial sphere over the course of the year. Within this zodiac ...
signs are
Virgo Virgo may refer to: Arts and entertainment * Virgo (film), a 1970 Egyptian film * Virgo (character), several Marvel Comics characters * Virgo Asmita, a character in the manga ''Saint Seiya: The Lost Canvas'' * ''Virgo'' (album), by Virgo Four, ...
(until September 22) and
Libra Libra generally refers to: * Libra (constellation), a constellation * Libra (astrology), an astrological sign based on the star constellation Libra may also refer to: Arts and entertainment * ''Libra'' (novel), a 1988 novel by Don DeLillo Musi ...
(September 23 onward).. Signs in UT/GMT for 1950–2030.


Observances

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


Non-Gregorian

*
List of observances set by the Bahá'í calendar A list is a set of discrete items of information collected and set forth in some format for utility, entertainment, or other purposes. A list may be memorialized in any number of ways, including existing only in the mind of the list-maker, bu ...
*
List of observances set by the Chinese calendar The traditional Chinese holidays are an essential part of harvests or prayer offerings. The most important Chinese holiday is the Chinese New Year (Spring Festival), which is also celebrated in overseas ethnic Chinese communities (for example in ...
*
List of observances set by the Hebrew calendar All observances begin at sunset the day prior to the Gregorian date listed unless otherwise noted, and end on nightfall of the date in question, which is defined as the appearance of three stars in the sky. On leap years (which occur every 2–3 ...
*
List of observances set by the Islamic calendar All Islamic calendar, Islamic observances begin at the sundown prior to the date listed, and end at sundown of the date in question unless otherwise noted. Holidays for 1441 (2019-2020) {, class="wikitable" !width=20%, Date on Islamic Calenda ...
*
List of observances set by the Solar Hijri calendar Dates in this table are determined by when the March Equinox falls. It will fall on March 20 from 2018 to 2023. {, class="wikitable" , - style="background:#efefef;" ! Holiday date !!Holiday name !! Description !!March equinox on March 19 !!M ...


Month-long

* Amerindian Heritage Month (Guyana) * Childhood Cancer Awareness Month (United Kingdom) * Gynecologic Cancer Awareness Month * Leukemia and Lymphoma Awareness Month * Ovarian Cancer Awareness Month * Thyroid Cancer Awareness Month * National Suicide Prevention Month * Vegetable Month


United States

* Better Breakfast Month * Food Safety Education Month * National
Childhood Obesity Childhood obesity is a condition where excess adipose tissue, body fat negatively affects a child's health or well-being. As methods to determine body fat directly are difficult, the diagnosis of obesity is often based on Body mass index, BMI. ...
Awareness Month * Hydrocephalus Awareness Month * Pain Awareness Month * National Preparedness Month * National Prostate Health Month * National Sickle Cell Awareness Month * National Yoga Month


= Food months

= *
National Bourbon Heritage Month National Bourbon Heritage Month is an observance in the United States that calls for celebration of bourbon as America's "Native Spirit" during the month of September. On August 2, 2007, the US Senate declared September 2007 as "National Bourbon H ...
* California Wine Month * National Chicken Month * National Honey Month * 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

* Engineering Day (Egypt) * White Balloon Day * Day of the Programmer * Te Wiki o te Reo Māori (Māori Language Week) (
New Zealand New Zealand () is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and List of islands of New Zealand, over 600 smaller islands. It is the List of isla ...
) * See also
Movable Western Christian observances {{Update, date=February 2023 This is a list of Moveable feast, movable observances within Western Christianity. It includes secular observances which are calculated by religious observances. ''This list does not necessarily imply either official ...
* See also
Movable Eastern Christian observances This is a chronological list of moveable Eastern Christian observances. Most of these are calculated by the date of Easter, Pascha. It includes secular observances which are calculated by religious observances. ''This list does not necessarily im ...


First Wednesday

* Administrative Professionals' Day (
South Africa South Africa, officially the Republic of South Africa (RSA), is the Southern Africa, southernmost country in Africa. Its Provinces of South Africa, nine provinces are bounded to the south by of coastline that stretches along the Atlantic O ...
)


First Thursday

*
Engineer's Day Engineer's Day is observed in several countries on various dates of the year. Country-wise list See also *UNESCO World Engineering Day for Sustainable Development References External links

* *{{cite web, url=http://calendar.ut.ac.ir/, ...
s (
Tanzania Tanzania, officially the United Republic of Tanzania, is a country in East Africa within the African Great Lakes region. It is bordered by Uganda to the northwest; Kenya to the northeast; the Indian Ocean to the east; Mozambique and Malawi to t ...
)


First Friday

*
Engineer's Day Engineer's Day is observed in several countries on various dates of the year. Country-wise list See also *UNESCO World Engineering Day for Sustainable Development References External links

* *{{cite web, url=http://calendar.ut.ac.ir/, ...
s (
Tanzania Tanzania, officially the United Republic of Tanzania, is a country in East Africa within the African Great Lakes region. It is bordered by Uganda to the northwest; Kenya to the northeast; the Indian Ocean to the east; Mozambique and Malawi to t ...
) *
Labor Day Labor Day is a Federal holidays in the United States, federal holiday in the United States celebrated on the first Monday of September to honor and recognize the Labor history of the United States, American labor movement and the works and con ...
(
Marshall Islands The Marshall Islands, officially the Republic of the Marshall Islands, is an island country west of the International Date Line and north of the equator in the Micronesia region of the Northwestern Pacific Ocean. The territory consists of 29 c ...
) *
Teachers' Day Teachers' Day is a special day for the appreciation of teachers. It may include celebrations to honor them for their special contributions in a particular field area, or the community tone in education. This is the primary reason why countries ce ...
(
Singapore Singapore, officially the Republic of Singapore, is an island country and city-state in Southeast Asia. The country's territory comprises one main island, 63 satellite islands and islets, and one outlying islet. It is about one degree ...
)


First Sunday

* Brazilian Day (
International observance Lists of holidays by various categorizations. Religious holidays Abrahamic holidays (Middle Eastern) Christian holidays *Christmas (Nativity of Jesus, Nativity of Jesus Christ, the beginning of Christmastide) *Solemnity of Mary, Mother ...
) *
Father's Day Father's Day is a day set aside for honoring one's father, as well as fatherhood, paternal bonds, and the influence of fathers in society. "Father's Day" complements similar celebrations honoring family members, such as Mother's Day and, in som ...
(
Australia Australia, officially the Commonwealth of Australia, is a country comprising mainland Australia, the mainland of the Australia (continent), Australian continent, the island of Tasmania and list of islands of Australia, numerous smaller isl ...
,
Fiji Fiji, 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 consists of an archipelago of more than 330 islands—of which about ...
,
New Zealand New Zealand () is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and List of islands of New Zealand, over 600 smaller islands. It is the List of isla ...
,
Papua New Guinea Papua New Guinea, officially the Independent State of Papua New Guinea, is an island country in Oceania that comprises the eastern half of the island of New Guinea and offshore islands in Melanesia, a region of the southwestern Pacific Ocean n ...
) *
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. C ...
(
Roman Catholic Church The Catholic Church (), also known as the Roman Catholic Church, is the List of Christian denominations by number of members, largest Christian church, with 1.27 to 1.41 billion baptized Catholics Catholic Church by country, worldwid ...
, October 2 in most locations, first Sunday in September by special dispensation)


First Sunday after September 4

*
Wakes Week The Wakes Week is a holiday period in parts of England and Scotland. Originally a religious celebration or feast, the tradition of the Wakes Week developed into a secular holiday, particularly in North West England during the Industrial Revoluti ...
(Parts of
England England is a Countries of the United Kingdom, country that is part of the United Kingdom. It is located on the island of Great Britain, of which it covers about 62%, and List of islands of England, more than 100 smaller adjacent islands. It ...
and
Scotland Scotland is a Countries of the United Kingdom, country that is part of the United Kingdom. It contains nearly one-third of the United Kingdom's land area, consisting of the northern part of the island of Great Britain and more than 790 adjac ...
) ** Abbots Bromley Horn Dance (
Abbots Bromley Abbots Bromley is a village and civil parish in the East Staffordshire district of Staffordshire and lies approximately east of Stafford, England. According to the University of Nottingham English Place-names project, the settlement name Abbots ...
,
Staffordshire Staffordshire (; postal abbreviation ''Staffs''.) is a Ceremonial counties of England, ceremonial county in the West Midlands (region), West Midlands of England. It borders Cheshire to the north-west, Derbyshire and Leicestershire to the east, ...
,
England England is a Countries of the United Kingdom, country that is part of the United Kingdom. It is located on the island of Great Britain, of which it covers about 62%, and List of islands of England, more than 100 smaller adjacent islands. It ...
)


Week of the first Monday

* National Payroll Week (
United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
,
Canada Canada is a country in North America. Its Provinces and territories of Canada, ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, making it the world's List of coun ...
,
United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Northwestern Europe, off the coast of European mainland, the continental mainland. It comprises England, Scotlan ...
)


Week of September 10

* National Suicide Prevention Week (
United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
)


First Monday

*
Labour Day Labour Day is an annual day of celebration of the labour movement and its labor rights, achievements. It has its origins in the trade union, labour union movement, specifically the Eight-hour day movement, eight-hour day movement, which advoca ...
(
Canada Canada is a country in North America. Its Provinces and territories of Canada, ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, making it the world's List of coun ...
,
Palau Palau, officially the Republic of Palau, is an island country in the Micronesia subregion of Oceania in the western Pacific Ocean. The Republic of Palau consists of approximately 340 islands and is the western part of the Caroline Islands ...
,
United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
)


Nearest weekday to September 12

* Saragarhi Day (
Sikhism Sikhism is an Indian religion and Indian philosophy, philosophy that originated in the Punjab region of the Indian subcontinent around the end of the 15th century CE. It is one of the most recently founded major religious groups, major religio ...
)


Second Saturday

* Day of the Workers in the Oil, Gas, Power, and Geological Industry (
Turkmenistan Turkmenistan is a landlocked country in Central Asia bordered by Kazakhstan to the northwest, Uzbekistan to the north, east and northeast, Afghanistan to the southeast, Iran to the south and southwest and the Caspian Sea to the west. Ash ...
)


Saturday after first Monday

*
Carl Garner Federal Lands Cleanup Day William Carl Garner (June 1, 1915 – July 6, 2014) was an American engineer. He served as resident engineer of Greers Ferry Lake since its construction in 1959, and in that capacity, he organized a citizen cleanup of the area which expanded to the ...
(
United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
)


Second Sunday

* Auditor's Day (
Church of Scientology The Church of Scientology is a group of interconnected corporate entities and other organizations devoted to the practice, administration and dissemination of Scientology, which is variously defined as a cult, a business, or a new religiou ...
) *
Father's Day Father's Day is a day set aside for honoring one's father, as well as fatherhood, paternal bonds, and the influence of fathers in society. "Father's Day" complements similar celebrations honoring family members, such as Mother's Day and, in som ...
(
Latvia Latvia, officially the Republic of Latvia, is a country in the Baltic region of Northern Europe. It is one of the three Baltic states, along with Estonia to the north and Lithuania to the south. It borders Russia to the east and Belarus to t ...
) * National Grandparents' Day (
Canada Canada is a country in North America. Its Provinces and territories of Canada, ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, making it the world's List of coun ...
,
Estonia Estonia, officially the Republic of Estonia, is a country in Northern Europe. It is bordered to the north by the Gulf of Finland across from Finland, to the west by the Baltic Sea across from Sweden, to the south by Latvia, and to the east by Ru ...
) * Tanker's Day (
Russia Russia, or the Russian Federation, is a country spanning Eastern Europe and North Asia. It is the list of countries and dependencies by area, largest country in the world, and extends across Time in Russia, eleven time zones, sharing Borders ...
) * Turkmen Bakhshi Day (
Turkmenistan Turkmenistan is a landlocked country in Central Asia bordered by Kazakhstan to the northwest, Uzbekistan to the north, east and northeast, Afghanistan to the southeast, Iran to the south and southwest and the Caspian Sea to the west. Ash ...
)


First Sunday after first Monday

* National Grandparents' Day (
United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
)


Week of September 17

* Celebrate Freedom Week (
Kansas Kansas ( ) is a landlocked U.S. state, state in the Midwestern United States, Midwestern region of the United States. It borders Nebraska to the north; Missouri to the east; Oklahoma to the south; and Colorado to the west. Kansas is named a ...
and
Texas Texas ( , ; or ) is the most populous U.S. state, state in the South Central United States, South Central region of the United States. It borders Louisiana to the east, Arkansas to the northeast, Oklahoma to the north, New Mexico to the we ...
,
United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
)


Third Tuesday

*
Prinsjesdag Prinsjesdag () is the day on which the reigning Monarchy of the Netherlands, monarch of the Netherlands addresses a joint session of the States General of the Netherlands, States-General of the Netherlands (consisting of the Senate of the Neth ...
(
Netherlands , Terminology of the Low Countries, informally Holland, is a country in Northwestern Europe, with Caribbean Netherlands, overseas territories in the Caribbean. It is the largest of the four constituent countries of the Kingdom of the Nether ...
)


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

* Constitution Day and Citizenship Day


Third Friday

* National POW/MIA Recognition Day (
United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
)


Third Saturday

* National Cleanup Day (United States) *
Oktoberfest celebrations The Oktoberfest is a two-week festival held each year in Munich, Germany during late September and early October. It is attended by six million people each year and has inspired numerous similar events using the name ''Oktoberfest'' in Germany ...
begin (
German diaspora The German diaspora (, ) consists of German people and their descendants who live outside of Germany. The term is used in particular to refer to the aspects of migration of German speakers from Central Europe to different countries around the ...
, local dates may vary) *
Software Freedom Day Software Freedom Day (SFD) is an annual list of minor secular observances#September, worldwide celebration of Free Software organized by the Digital Freedom Foundation (DFF). SFD is a public education effort with the aim of awareness raising, i ...
(
International observance Lists of holidays by various categorizations. Religious holidays Abrahamic holidays (Middle Eastern) Christian holidays *Christmas (Nativity of Jesus, Nativity of Jesus Christ, the beginning of Christmastide) *Solemnity of Mary, Mother ...
)


Weekend of the week of September 17

* Von Steuben Day (
United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
)


Third Sunday

* Day of the Walloon Region (
Wallonia Wallonia ( ; ; or ), officially the Walloon Region ( ; ), is one of the three communities, regions and language areas of Belgium, regions of Belgium—along with Flemish Region, Flanders and Brussels. Covering the southern portion of the c ...
,
Belgium Belgium, officially the Kingdom of Belgium, is a country in Northwestern Europe. Situated in a coastal lowland region known as the Low Countries, it is bordered by the Netherlands to the north, Germany to the east, Luxembourg to the southeas ...
) *
Father's Day Father's Day is a day set aside for honoring one's father, as well as fatherhood, paternal bonds, and the influence of fathers in society. "Father's Day" complements similar celebrations honoring family members, such as Mother's Day and, in som ...
(
Ukraine Ukraine is a country in Eastern Europe. It is the List of European countries by area, second-largest country in Europe after Russia, which Russia–Ukraine border, borders it to the east and northeast. Ukraine also borders Belarus to the nor ...
) * Federal Day of Thanksgiving, Repentance and Prayer (
Switzerland Switzerland, officially the Swiss Confederation, is a landlocked country located in west-central Europe. It is bordered by Italy to the south, France to the west, Germany to the north, and Austria and Liechtenstein to the east. Switzerland ...
) * Warachikuy (
Cusco Cusco or Cuzco (; or , ) is a city in southeastern Peru, near the Sacred Valley of the Andes mountain range and the Huatanay river. It is the capital of the eponymous Cusco Province, province and Cusco Region, department. The city was the cap ...
,
Peru Peru, officially the Republic of Peru, is a country in western South America. It is bordered in the north by Ecuador and Colombia, in the east by Brazil, in the southeast by Bolivia, in the south by Chile, and in the south and west by the Pac ...
)


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 Lists of holidays by various categorizations. Religious holidays Abrahamic holidays (Middle Eastern) Christian holidays *Christmas (Nativity of Jesus, Nativity of Jesus Christ, the beginning of Christmastide) *Solemnity of Mary, Mother ...
):


Last full week

* National Forest Week (
Canada Canada is a country in North America. Its Provinces and territories of Canada, ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, making it the world's List of coun ...
) ** National Tree Day (Wednesday of last full week): * Celebrate Freedom Week (
Arkansas Arkansas ( ) is a landlocked state in the West South Central region of the Southern United States. It borders Missouri to the north, Tennessee and Mississippi to the east, Louisiana to the south, Texas to the southwest, and Oklahoma ...
and Florida,
United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
)


Third Monday

* Respect for the Aged Day (Japan)


Pertaining to the September Equinox

* Autumnal Equinox Day (Japan) ** French Republican Calendar, French Republican New Year. (defunct) * Guldize (Cornish people) * Higan (Japan) * Wheel of the Year#Autumn Equinox (Mabon), 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 by humans as being in the same celestial sphere, celestial hemisphere relative to the invariable plane of the Solar ...
) * Miķeļi (
Latvia Latvia, officially the Republic of Latvia, is a country in the Baltic region of Northern Europe. It is one of the three Baltic states, along with Estonia to the north and Lithuania to the south. It borders Russia to the east and Belarus to t ...
) * Wheel of the Year#Spring Equinox (Ostara), Ostara (Neopaganism, Southern Hemisphere)


Fourth Friday

* Native American Day (California,
United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
)


Last Friday

* Public holidays in the Marshall Islands, Manit Day (
Marshall Islands The Marshall Islands, officially the Republic of the Marshall Islands, is an island country west of the International Date Line and north of the equator in the Micronesia region of the Northwestern Pacific Ocean. The territory consists of 29 c ...
)


Last Saturday

* Women in Aviation, International#Girls in Aviation Day, Girls in Aviation Day (
International observance Lists of holidays by various categorizations. Religious holidays Abrahamic holidays (Middle Eastern) Christian holidays *Christmas (Nativity of Jesus, Nativity of Jesus Christ, the beginning of Christmastide) *Solemnity of Mary, Mother ...
) * National Public Lands Day (
United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
)


Last Sunday

* Daylight saving time begins (
New Zealand New Zealand () is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and List of islands of New Zealand, over 600 smaller islands. It is the List of isla ...
) * Gold Star Mothers Club, Gold Star Mother's Day (
United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
)


Fourth Monday

* American Indian Day (Tennessee,
United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
) * September Declaration (Flanders,
Belgium Belgium, officially the Kingdom of Belgium, is a country in Northwestern Europe. Situated in a coastal lowland region known as the Low Countries, it is bordered by the Netherlands to the north, Germany to the east, Luxembourg to the southeas ...
)


Last Wednesday

* Arbor Day#Canada, Maple Leaf Day (
Canada Canada is a country in North America. Its Provinces and territories of Canada, ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, making it the world's List of coun ...
)


Last weekday

* Ask a Stupid Question Day (India,
United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Northwestern Europe, off the coast of European mainland, the continental mainland. It comprises England, Scotlan ...
,
United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
)


Fixed Gregorian

* September 1 ** List of holidays by country#Eritrea, Anniversary of the Start of the Armed Struggle (Eritrea) ** Constitution Day (Slovakia) ** 1923 Great Kantō earthquake, Disaster Prevention Day (Japan) ** Emma Nutt#Commemoration, Emma Nutt Day (
International observance Lists of holidays by various categorizations. Religious holidays Abrahamic holidays (Middle Eastern) Christian holidays *Christmas (Nativity of Jesus, Nativity of Jesus Christ, the beginning of Christmastide) *Solemnity of Mary, Mother ...
) ** First day of school in many countries in Asia, Europe and the Americas. ** Flag Day (Honduras) ** Independence Day (Uzbekistan) ** Journalist Day (Taiwan) ** Knowledge Day (
Russia Russia, or the Russian Federation, is a country spanning Eastern Europe and North Asia. It is the list of countries and dependencies by area, largest country in the world, and extends across Time in Russia, eleven time zones, sharing Borders ...
,
Ukraine Ukraine is a country in Eastern Europe. It is the List of European countries by area, second-largest country in Europe after Russia, which Russia–Ukraine border, borders it to the east and northeast. Ukraine also borders Belarus to the nor ...
and Armenia) ** List of food days#September, National Cherry Popover Day (
United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
) ** Random Acts of Kindness Day (
New Zealand New Zealand () is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and List of islands of New Zealand, over 600 smaller islands. It is the List of isla ...
) ** Start of National Arbor Week (
South Africa South Africa, officially the Republic of South Africa (RSA), is the Southern Africa, southernmost country in Africa. Its Provinces of South Africa, nine provinces are bounded to the south by of coastline that stretches along the Atlantic O ...
), September 1–7 ** Public holidays in Poland#Holidays declared by statute, Veteran's Day (Poland) **
Teachers' Day Teachers' Day is a special day for the appreciation of teachers. It may include celebrations to honor them for their special contributions in a particular field area, or the community tone in education. This is the primary reason why countries ce ...
(
Singapore Singapore, officially the Republic of Singapore, is an island country and city-state in Southeast Asia. The country's territory comprises one main island, 63 satellite islands and islets, and one outlying islet. It is about one degree ...
) ** Wattle Day (
Australia Australia, officially the Commonwealth of Australia, is a country comprising mainland Australia, the mainland of the Australia (continent), Australian continent, the island of Tasmania and list of islands of Australia, numerous smaller isl ...
) *
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 ...
** 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 (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
) ** National Day (Vietnam) ** Sedantag (German Empire, defunct) ** Victory over Japan Day (
United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
) * 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 Provinces and territories of Canada, ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, making it the world's List of coun ...
) ** Merchant Navy (United Kingdom) ** List of food days#September, National Welsh Rarebit Day (
United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
) ** Public holidays in Tokelau, Tokehega Day (Tokelau,
New Zealand New Zealand () is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and List of islands of New Zealand, over 600 smaller islands. It is the List of isla ...
) * September 4 ** Immigration to Argentina, Immigrant's Day (Argentina) ** List of food days#September, National Macadamia Nut Day (
United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
) ** Newspaper Carrier Day (
United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
) * September 5 ** International Day of Charity ** List of food days#September, National Cheese Pizza Day (
United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
) **
Teachers' Day Teachers' Day is a special day for the appreciation of teachers. It may include celebrations to honor them for their special contributions in a particular field area, or the community tone in education. This is the primary reason why countries ce ...
(India) * 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 (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
) ** 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 (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
) ** List of food days#September, National Beer Lover's Day (
United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
) ** List of food days#September, National Salami Day (
United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
) ** Benjamin the thylacine, National Threatened Species Day (
Australia Australia, officially the Commonwealth of Australia, is a country comprising mainland Australia, the mainland of the Australia (continent), Australian continent, the island of Tasmania and list of islands of Australia, numerous smaller isl ...
) ** 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 List of Christian denominations by number of members, largest Christian church, with 1.27 to 1.41 billion baptized Catholics Catholic Church by country, worldwid ...
), (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, 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) * 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 (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
) ** Saint George's Caye Day (Belize) **
Teachers' Day Teachers' Day is a special day for the appreciation of teachers. It may include celebrations to honor them for their special contributions in a particular field area, or the community tone in education. This is the primary reason why countries ce ...
(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) **
Teachers' Day Teachers' Day is a special day for the appreciation of teachers. It may include celebrations to honor them for their special contributions in a particular field area, or the community tone in education. This is the primary reason why countries ce ...
(Argentina) * September 12 ** Most Holy Name of the Blessed Virgin Mary ** Day of Conception (Russia) ** Day of the Programmer, 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) * September 13 ** Day of the Programmer, 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 Engineer's Day is observed in several countries on various dates of the year. Country-wise list See also *UNESCO World Engineering Day for Sustainable Development References External links

* *{{cite web, url=http://calendar.ut.ac.ir/, ...
(Mauritius) ** International Chocolate Day ** List of food days#September, National Peanut Day (
United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
) *
September 14 Events Pre-1600 *AD 81 – Domitian became Emperor of the Roman Empire upon the death of his brother Titus. * 786 – "Night of the three Caliphs": Harun al-Rashid becomes the Abbasid caliph upon the death of his brother al-Hadi. Bir ...
** Children's Day#Nepal, Children's Day (Nepal) (celebrated on the 15th on leap years) **
Engineer's Day Engineer's Day is observed in several countries on various dates of the year. Country-wise list See also *UNESCO World Engineering Day for Sustainable Development References External links

* *{{cite web, url=http://calendar.ut.ac.ir/, ...
(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 (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
) ** 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 Engineer's Day is observed in several countries on various dates of the year. Country-wise list See also *UNESCO World Engineering Day for Sustainable Development References External links

* *{{cite web, url=http://calendar.ut.ac.ir/, ...
(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 (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
) ** List of food days#September, National Double Cheeseburger Day (
United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
) ** List of food days#September, National Linguine Day (
United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
) ** List of food days#September, National Cheese Toast Day (
United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
) ** 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 (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
) ** List of food days#September, National Guacamole Day (
United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
) * September 17 ** Australian Citizenship Day ** Constitution Day and Citizenship Day (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 (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
) ** List of food days#September, National Monte Cristo Sandwich Day (
United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
) ** Operation Market Garden, Operation Market Garden Anniversary is still remembered with parachuting and dedications on this day. (Netherlands) **
Teachers' Day Teachers' Day is a special day for the appreciation of teachers. It may include celebrations to honor them for their special contributions in a particular field area, or the community tone in education. This is the primary reason why countries ce ...
(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 (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
) ** 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 (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
) * 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 (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
) ** List of food days#September, National Punch Day (
United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
) ** List of food days#September, National Rum Punch Day (
United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
) ** 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 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 (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
) ** 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 (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
) ** 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, officially the Republic of Estonia, is a country in Northern Europe. It is bordered to the north by the Gulf of Finland across from Finland, to the west by the Baltic Sea across from Sweden, to the south by Latvia, and to the east by Ru ...
) ** 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 (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
) ** 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 (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
) ** 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 () is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and List of islands of New Zealand, over 600 smaller islands. It is the List of isla ...
) ** European Day of Languages (European Union) ** List of food days#September, Johnny Appleseed Day (
United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
) ** List of food days#September, National Better Breakfast Day (
United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
) ** List of food days#September, National Dumpling Day (
United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
) ** National Good Neighbor Day (
United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
) ** List of food days#September, National Pancake Day (
United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
) ** 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 (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
) ** List of food days#September, National Corned Beef Hash Day (
United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
) ** AIDS.gov#External links, National Gay Men's HIV/AIDS Awareness Day (
United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
) ** Polish Underground State's Day (Poland) ** World Tourism Day * September 28 ** Ask a Stupid Question Day (
United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
) ** 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 (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
) ** 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 Teachers' Day is a special day for the appreciation of teachers. It may include celebrations to honor them for their special contributions in a particular field area, or the community tone in education. This is the primary reason why countries ce ...
(Taiwan 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 (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
) ** 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 Events Pre-1600 * 489 – The Ostrogoths under Theoderic the Great defeat the forces of Odoacer for the second time. * 737 – The Turgesh drive back an Umayyad invasion of Khuttal, follow them south of the Oxus, and capture thei ...
** Agricultural Reform (Nationalization) Day (São Tomé and Príncipe) ** Birth of Morelos (Mexico) ** Blasphemy Day (
United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
,
Canada Canada is a country in North America. Its Provinces and territories of Canada, ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, making it the world's List of coun ...
, 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 (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
) ** Recovery Day (
Canada Canada is a country in North America. Its Provinces and territories of Canada, ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, making it the world's List of coun ...
) ** Orange Shirt Day (
Canada Canada is a country in North America. Its Provinces and territories of Canada, ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, making it the world's List of coun ...
)


References


External links

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