Les Très Riches Heures du duc de Berry septembre

2008-05-04 at 18-26-44-Forgetmenot-Flower

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 March is the third month of the year in both the Julian and Gregorian calendars. It is the second of seven months to have a length of 31 days. In the Northern Hemisphere, the meteorological beginning of spring occurs on the first day of March ...

in the Southern Hemisphere are seasonally equivalent. In the Northern hemisphere, the beginning of the meteorological

autumn Autumn, also known as fall in American English and Canadian English, 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 ( ...

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 An academic year or school year is a period of time which schools, colleges and universities use to measure a quantity of study. School holiday School holidays (also referred to as vacations, breaks, and recess) are the periods during which sch ...

in many countries of the northern hemisphere, in which children go back to school after the

summer break Summer vacation or summer break is a school break in summer between school years and the break in the school academic year. Students are off anywhere between three weeks to three months. Depending on the country and district, staff might be partia ...

, sometimes on the first day of the month.

September September is the ninth month of the year in both the Julian and Gregorian calendars, 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 H ...

(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 January is the first month of the year in the Julian and Gregorian calendars and is also the first of seven months to have a length of 31 days. The first day of the month is known as New Year's Day. It is, on average, the coldest month of the ...

and

February February is the second month of the year in the Julian and Gregorian calendars. The month has 28 days in common years or 29 in leap years, with the 29th day being called the ''leap day''. It is the first of five months not to have 31 days (th ...

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 In modern historiography, ancient Rome refers to Roman civilisation from the founding of the city of Rome in the 8th century BC to the collapse of the Western Roman Empire in the 5th century AD. It encompasses the Roman Kingdom (753–50 ...

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 In the history of France, the First Republic (french: Première République), sometimes referred to in historiography as Revolutionary France, and officially the French Republic (french: République française), was founded on 21 September 1792 ...

. 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

. 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 Events Pre-1600 *AD 81 – Domitian becomes Emperor of the Roman Empire upon the death of his brother Titus. * 629 – Emperor Heraclius enters Constantinople in triumph after his victory over the Persian Empire. * 786 – "Night ...

. 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 Autumnal equinox or variations, may refer to: * September equinox, the autumnal equinox in the Northern Hemisphere * March equinox, the autumnal equinox in the Southern Hemisphere Other uses * Autumnal Equinox Day (Japanese: 秋分の日, ''Shūbu ...

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 A birthstone is a gemstone that represents a person's period of birth that is usually the month or zodiac sign. Birthstones are often worn as jewelry or as a pendant necklace. History of birthstones Western custom The first century historian ...

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 ''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 current taxonomy and systematics are in flux. Morning glory species belong to many genera, some of ...

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 Virgo may refer to: *Virgo (astrology), the sixth astrological sign of the zodiac * Virgo (constellation), a constellation *Virgo Cluster, a cluster of galaxies in the constellation Virgo *Virgo Stellar Stream, remains of a dwarf galaxy * Virgo Su ...

(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 A ''list'' is any set of items in a row. List or lists may also refer to: People * List (surname) Organizations * List College, an undergraduate division of the Jewish Theological Seminary of America * SC Germania List, German rugby unio ...

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– ...

List of observances set by the Islamic calendar All 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 Calendar !width=20%, Gre ...

* 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 Childhood obesity is a condition where excess 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 BMI. Due to the rising prevalence o ...

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 Sickle cell disease (SCD) is a group of blood disorders typically inherited from a person's parents. The most common type is known as sickle cell anaemia. It results in an abnormality in the oxygen-carrying protein haemoglobin found in red blo ...

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 This is a chronological list of moveable Eastern Christian observances. Most of these are calculated by the date of Pascha. It includes secular observances which are calculated by religious observances. ''This list does not necessarily imply eithe ...

First Wednesday

Administrative Professionals' Day Administrative Professionals Day (also known as Secretaries Day or Admin Day) is a day observed yearly in a small number of countries. It is not a public holiday in any of them. In some countries, it falls within Administrative Professionals Week ...

(

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 Day Engineer's Day is observed in several countries on various dates of the year. On 25 November 2019, based on a proposal by the World Federation of Engineering Organizations (WFEO), UNESCO The United Nations Educational, Scientific and Cultura ...

s (

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

s (

) *

Labor Day Labor Day is a federal holiday in the United States celebrated on the first Monday in September to honor and recognize the American labor movement and the works and contributions of laborers to the development and achievements of the United St ...

(

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 Teachers' Day is a special day for the appreciation of teachers, and 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 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 Lists of holidays by various categorizations. Religious holidays Abrahamic holidays (Middle Eastern) Jewish holidays * Chag HaMatzot (Feast of Unleavened Bread – 7 days of consumption of matzo with wine and avoidance of leavened food ...

) *

Father's Day Father's Day is a holiday of honoring fatherhood and paternal bonds, as well as the influence of fathers in society. In Catholic countries of Europe, it has been celebrated on 19 March as Saint Joseph's Day since the Middle Ages. In the Unite ...

(

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 ...

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 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 Revolution ...

(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 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 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 ...

)

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 ...

(

)

First Monday

Labour Day Labour Day (''Labor Day'' in the United States) is an annual holiday to celebrate the achievements of workers. Labour Day has its origins in the labour union movement, specifically the eight-hour day movement, which advocated eight hours for ...

(

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 ...

)

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 In the United States, Patriot Day occurs on September 11 of each year in memory of the people killed in the September 11 attacks of the year 2001. History In the immediate aftermath of the attacks, carried out by terrorists from Al-Qaeda, Pre ...

(

)

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 (

)

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 religious ...

) *

(

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 ...

(

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 (

)

First Sunday after first Monday

(

)

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 ...

)

Third Tuesday

Prinsjesdag Prinsjesdag ( en, Little Prince's Day) 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 o ...

(

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) Constitution Day (or Citizenship Day), is an American federal observance that recognizes the adoption of the United States Constitution and those who have become U.S. citizens. It is normally observed on September 17, the day in 1787 that deleg ...

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 ...

(

)

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 world. ...

, local dates may vary) * Software Freedom Day (

)

Weekend of the week of September 17

* Von Steuben Day (

)

Third Sunday

Day of the Walloon Region The Day of the Walloon Region or simply the Day of Wallonia (french: Fête de la Wallonie) is the annual public holiday of Wallonia, the southern region of Belgium. It is celebrated each third Sunday of September and commemorates the participation ...

(

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 ...

) *

(

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 Cusco, often spelled Cuzco (; qu, Qusqu ()), is a city in Southeastern Peru near the Urubamba Valley of the Andes mountain range. It is the capital of the Cusco Region and of the Cusco Province. The city is the seventh most populous in Peru; ...

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 ...

(

Last full week

* National Forest Week (

) ** National Tree Day (Wednesday of last full week): *

(

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 ...

)

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 is a public holiday in Japan that usually occurs on September 22 or 23, the date of Southward equinox in Japan Standard Time (autumnal equinox can occur on different dates for different time zones). Due to the necessity of recent astronomical ...

(

) ** 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 is a Buddhist holiday exclusively celebrated by Japanese sects for seven days; three days before and after both the Spring equinox ( shunbun) and Autumnal equinox ( shūbun). It is observed by nearly every Buddhist school in Japan. The tra ...

(

) * Mabon (

Neopaganism Modern paganism, also known as contemporary paganism and neopaganism, is a term for a religion or family of religions influenced by the various historical pre-Christian beliefs of pre-modern peoples in Europe and adjacent areas of North Afric ...

) *

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 ...

(

) * Ostara (

, 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 ...

)

Last Friday

* Manit Day (

)

Last Saturday

* Girls in Aviation Day (

) *

National Public Lands Day National Public Lands Day (NPLD) is celebrated annually at public lands in the United States on the fourth Saturday of September. A signature event of the National Environmental Education Foundation, it promotes both popular enjoyment and volunt ...

(

)

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 (

) *

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 ...

(

)

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 ...

) * 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 ...

)

Last Wednesday

* Maple Leaf Day (

)

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 ...

)

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 (

) ** Emma Nutt Day (

) **

First day of school The first day of school is the first day of an academic year. This is usually in August or September in the Northern Hemisphere and often January or February in the Southern Hemisphere, but differs from country to country. Asia and Africa Egypt ...

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 Knowledge Day (russian: День Знаний), often simply called 1 September, is the day when the school year traditionally starts in Russia and many other former Soviet republics as well as other countries in the former Eastern Bloc (excludin ...

(

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 (

) **

Random Acts of Kindness Day Random Acts of Kindness Day is a day to celebrate and encourage random acts of kindness. "It's just a day to celebrate kindness and the whole pay it forward mentality", said Tracy Van Kalsbeek, executive director of the Stratford Perth Communit ...

(

) **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 ...

(

), September 1–7 ** Veteran's Day (

Poland Poland, officially the Republic of Poland, is a country in Central Europe. It is divided into 16 administrative provinces called voivodeships, covering an area of . Poland has a population of over 38 million and is the fifth-most populou ...

) **

(

) ** Wattle Day (

) *

** Democracy Day (

Tibet Tibet (; ''Böd''; ) is a region in East Asia, covering much of the Tibetan Plateau and spanning about . It is the traditional homeland of the Tibetan people. Also resident on the plateau are some other ethnic groups such as Monpa people, ...

) **

Independence Day An independence day is an annual event commemorating the anniversary of a nation's independence or statehood, usually after ceasing to be a group or part of another nation or state, or more rarely after the end of a military occupation. Many ...

(Transnistria, unrecognized) **

(

Nagorno-Karabakh Republic Artsakh, officially the Republic of Artsakh () or the Nagorno-Karabakh Republic (),, is a breakaway state in the South Caucasus whose territory is internationally recognised as part of Azerbaijan. Artsakh controls a part of the former N ...

, unrecognized) ** National Blueberry Popsicle Day (

) **

National Day (Vietnam) National Day ( vi, Ngày Quốc Khánh) is a national holiday in Vietnam observed on 2 September, commemorating President Hồ Chí Minh reading the Declarations of independence of Vietnam at Ba Đình Square in Hanoi on 2 September 1945. It ...

Sedantag Sedantag (, ''Day of Sedan'') was a semi-official memorial holiday in the German Empire celebrated on the second day of September to commemorate the victory in the 1870 Battle of Sedan. After the outbreak of the Franco-Prussian War a few we ...

(

German Empire The German Empire (),Herbert Tuttle wrote in September 1881 that the term "Reich" does not literally connote an empire as has been commonly assumed by English-speaking people. The term literally denotes an empire – particularly a hereditary ...

, defunct) **

Victory over Japan Day Victory over Japan Day (also known as V-J Day, Victory in the Pacific Day, or V-P Day) is the day on which Imperial Japan surrendered in World War II, in effect bringing the war to an end. The term has been applied to both of the days on ...

(

) *

September 3 Events Pre-1600 *36 BC – In the Battle of Naulochus, Marcus Vipsanius Agrippa, admiral of Octavian, defeats Sextus Pompey, son of Pompey, thus ending Pompeian resistance to the Second Triumvirate. * 301 – San Marino, one of t ...

**China's victory over Japan commemoration related observances: ***

Armed Forces Day Many nations around the world observe some kind of Armed Forces Day to honor their military forces. This day is not to be confused with Veterans Day or Memorial Day. Africa Egypt In Egypt, Armed Forces Day is celebrated on 6 October, ...

(

Republic of China 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 northeas ...

) ***

V-J Day Victory over Japan Day (also known as V-J Day, Victory in the Pacific Day, or V-P Day) is the day on which Imperial Japan surrendered in World War II, in effect bringing the war to an end. The term has been applied to both of the days on ...

(

People's Republic of China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and ...

) **

Feast of San Marino and the Republic San Marino (, ), officially the Republic of San Marino ( it, Repubblica di San Marino; ), also known as the Most Serene Republic of San Marino ( it, Serenissima Repubblica di San Marino, links=no), is the fifth-smallest country in the world an ...

(

Republic of San Marino San Marino (, ), officially the Republic of San Marino ( it, Repubblica di San Marino; ), also known as the Most Serene Republic of San Marino ( it, Serenissima Repubblica di San Marino, links=no), is the fifth-smallest country in the world an ...

) ** Flag Day (Australia) **

(

Qatar Qatar (, ; ar, قطر, Qaṭar ; local vernacular pronunciation: ), officially the State of Qatar,) is a country in Western Asia. It occupies the Qatar Peninsula on the northeastern coast of the Arabian Peninsula in the Middle East; it sh ...

) ** Levy Mwanawasa Day (

Zambia Zambia (), officially the Republic of Zambia, is a landlocked country at the crossroads of Central Africa, Central, Southern Africa, Southern and East Africa, although it is typically referred to as being in Southern Africa at its most cent ...

) **

Memorial Day Memorial Day (originally known as Decoration Day) is a federal holiday in the United States for mourning the U.S. military personnel who have fought and died while serving in the United States armed forces. It is observed on the last Monda ...

(

Tunisia ) , image_map = Tunisia location (orthographic projection).svg , map_caption = Location of Tunisia in northern Africa , image_map2 = , capital = Tunis , largest_city = capital , ...

) ** Merchant Navy Remembrance Day (

) **

Merchant Navy (United Kingdom) The Merchant Navy is the maritime register of the United Kingdom and comprises the seagoing commercial interests of UK-registered ships and their crews. Merchant Navy vessels fly the Red Ensign and are regulated by the Maritime and Coastguard ...

** National Welsh Rarebit Day (

) ** Tokehega Day (

Tokelau Tokelau (; ; known previously as the Union Islands, and, until 1976, known officially as the Tokelau Islands) is a dependent territory of New Zealand in the southern Pacific Ocean. It consists of three tropical coral atolls: Atafu, Nukunonu, a ...

) *

September 4 Events Pre-1600 * 476 – Romulus Augustulus is deposed when Odoacer proclaims himself "King of Italy", thus ending the Western Roman Empire. * 626 – Li Shimin, posthumously known as Emperor Taizong of Tang, assumes the throne ove ...

** Clear Day (

Scientology Scientology is a set of beliefs and practices invented by American author L. Ron Hubbard, and an associated movement. It has been variously defined as a cult, a business, or a new religious movement. The most recent published census data indi ...

) ** Immigrant's Day (

Argentina Argentina (), officially the Argentine Republic ( es, link=no, República Argentina), is a country in the southern half of South America. Argentina covers an area of , making it the second-largest country in South America after Brazil, th ...

) ** National Macadamia Nut Day (

) **

Newspaper Carrier Day International Newspaper Carrier Day is an annual observance created by the Newspaper Association of America and celebrated in October. The day is scheduled in association with the Newspaper Association Managers' National Newspaper Week. National ...

(

) *

September 5 Events Pre-1600 * 917 – Liu Yan declares himself emperor, establishing the Southern Han state in southern China, at his capital of Panyu. *1367 – Swa Saw Ke becomes king of Ava *1590 – Alexander Farnese's army forces Henry ...

** International Day of Charity ** National Cheese Pizza Day (

) **

(

) *

September 6 Events Pre-1600 * 394 – Battle of the Frigidus: Roman emperor Theodosius I defeats and kills Eugenius the usurper. His Frankish ''magister militum'' Arbogast escapes but commits suicide two days later. *1492 – Christopher Colu ...

(São Tomé and Príncipe) **

Defence Day Defence Day ( ur, ALA-LC: ) is celebrated in Pakistan as national day to commemorate the sacrifices made by Pakistani soldiers in defending its borders.Taha SiddiquiDear Pakistanis, this Defence Day, please stop celebrating hate Al Jazeera ...

Army Day Many nations around the world observe some kind of Armed Forces Day to honor their military forces. This day is not to be confused with Veterans Day or Memorial Day. Africa Egypt In Egypt, Armed Forces Day is celebrated on 6 Octob ...

(Pakistan) ** Flag Day (

Bonaire Bonaire (; , ; pap, Boneiru, , almost pronounced ) is a Dutch island in the Leeward Antilles in the Caribbean Sea. Its capital is the port of Kralendijk, on the west ( leeward) coast of the island. Aruba, Bonaire and Curaçao form the ABC i ...

) **

(Eswatini) ** National Coffee Ice Cream Day (

) ** Unification Day (Bulgaria) *

September 7 Events Pre-1600 * 70 – A Roman army under Titus occupies and plunders Jerusalem. * 878 – Louis the Stammerer is crowned as king of West Francia by Pope John VIII. *1159 – Pope Alexander III is chosen. *1191 – Third Cr ...

Air Force Day (Pakistan) Air Force Day ( ur, or ''Youm-e-Fizaya'') is celebrated in Pakistan as a national day on 7 September, after the annual celebration of the Defence Day. Airshows and other programs mark the Pakistan Air Force's (PAF) role in defending the nation i ...

Independence Day (Brazil) The Independence Day of Brazil ( pt, Dia da Independência, ), commonly called Sete de Setembro (, 'Seven of September'), is a national holiday observed in Brazil on 7 September of every year. The date celebrates Brazil's Declaration of Indepen ...

** Military Intelligence Day (Ukraine) ** National Acorn Squash Day (

) ** National Beer Lover's Day (

) ** National Salami Day (

) ** National Threatened Species Day (

) **

Victory Day Victory Day is a commonly used name for public holidays in various countries, where it commemorates a nation's triumph over a hostile force in a war or the liberation of a country from hostile occupation. In many cases, multiple countries may ob ...

(

Mozambique Mozambique (), officially the Republic of Mozambique ( pt, Moçambique or , ; ny, Mozambiki; sw, Msumbiji; ts, Muzambhiki), is a country located in southeastern Africa bordered by the Indian Ocean to the east, Tanzania to the north, Malawi ...

) *

September 8 Events Pre-1600 * 617 – Battle of Huoyi: Li Yuan defeats a Sui dynasty army, opening the path to his capture of the imperial capital Chang'an and the eventual establishment of the Tang dynasty. * 1100 – Election of Antipope Theodor ...

** Day of the Battle of Borodino (Russia) ** Feast Day of Our Lady of Meritxell (Andorra) **

Independence Day (North Macedonia) Independence Day ( mk, Ден на независноста, Den na nezavisnosta) in North Macedonia is celebrated on 8 September. It has been a national holiday since 1991, when, following a referendum for Independence, SR Macedonia gained its ...

International Literacy Day International Literacy Day is an international observance, celebrated each year on 8 September, that was declared by UNESCO on 26 October 1966 at the 14th session of UNESCO's General Conference. It was celebrated for the first time in 1967. Its ...

Martyrs' Day (Afghanistan) In May 2012, the National Assembly of Afghanistan is reported to have accepted September 9 (or September 8, variable per Solar Hijri calendar) as "a new national holiday to honour national hero Ahmad Shah Massoud and those who died fighting for the ...

(date may fall on September 9, follows a non-Gregorian calendar) ** National day (Andorra) **Nativity of Mary (

), (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 (

, 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) **

(Tajikistan) from USSR in 1991. **

(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 (

) **Saint George's Caye Day (Belize) **

(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) **

(United States) **Thomas Roy#List of days, Remember Freedom Day **

(Argentina) *September 12 **Most Holy Name of the Blessed Virgin Mary **Day of Conception (Russia) **

, 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 (

) (this day or nearest weekday, 2015 date: September 11) *September 13 **

, 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) **

(Mauritius) **International Chocolate Day **List of food days#September, National Peanut Day (

) *

**Children's Day#Nepal, Children's Day (Nepal) (celebrated on the 15th on leap years) **

(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 (

) **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) **

(India) **Free Money Day (International) **

(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 (

) **List of food days#September, National Double Cheeseburger Day (

) **List of food days#September, National Linguine Day (

) **List of food days#September, National Cheese Toast Day (

) **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 (

) **List of food days#September, National Guacamole Day (

) **Thomas Roy#List of days, Stay Away from Seattle Day *September 17 **Australian 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 (

) **List of food days#September, National Monte Cristo Sandwich Day (

) **Operation Market Garden, Operation Market Garden Anniversary is still remembered with parachuting and dedications on this day. (Netherlands) **

(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 (

) **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) **

(Saint Kitts and Nevis) **International Talk Like a Pirate Day **List of food days#September, National Butterscotch Pudding Day (

) *September 20 **

of South Ossetia (not fully recognized) **List of food days#September, National Pepperoni Pizza Day (

) **List of food days#September, National Punch Day (

) **List of food days#September, National Rum Punch Day (

) **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 (

) **Founder's Day (Ghana), Founder's Day and National Volunteer Day (Ghana) **Independence Day (Armenia), Independence Day, celebrates the independence of

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 (

) **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 (

) **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 (

) **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 (

) **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 (

) **Public holidays in Nauru, National Youth Day (Nauru) **Public holidays in Mozambique, Revolution Day (

) *September 26 **Flag Day, Day of the National Flag (Ecuador) **Dominion Day (

) **European Day of Languages (European Union) **List of food days#September, Johnny Appleseed Day (

) **List of food days#September, National Better Breakfast Day (

) **List of food days#September, National Dumpling Day (

) **National Good Neighbor Day (

) **List of food days#September, National Pancake Day (

) **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 (

) **List of food days#September, National Corned Beef Hash Day (

) **AIDS.gov#External links, National Gay Men's HIV/AIDS Awareness Day (

) **Polish Underground State's Day (

) **World Tourism Day *September 28 **

(

) **Czech Statehood Day (Czech Republic) **List of food days#September, Family Day – A Day to Eat Dinner with Your Children (

) **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) **

(

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 (

) **International Coffee Day, National Coffee Day (multiple countries, see article) **Inventors' Day (

) **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 (

, other countries) **Public holidays in Poland#Holidays declared by statute, Boy's Day (

) **Independence Day (Botswana) **International Translation Day (International Federation of Translators) **List of food days#September, National Hot Mulled Cider Day (

) **Recovery Day (

) **Orange Shirt Day (

)

References

External links

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

September events

September in astronomy and astrology

September symbols

Observances

Non-Gregorian observances: 2020 dates

Month-long observances

United States observances

= Food Months

Movable Gregorian observances

First Wednesday

First Thursday

First Friday

First Sunday

First Sunday after September 4

Week of the First Monday

Week of September 10

First Monday

Nearest weekday to September 12

Second Saturday

Saturday after first Monday

Second Sunday

First Sunday after first Monday

Week of September 17

Third Tuesday

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

Third Friday

Third Saturday

Weekend of the week of September 17

Third Sunday

Week of Sunday before September 23

Week of September 22

Last week

Last full week

Third Monday

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 ...

Fourth Friday

Last Friday

Last Saturday

Last Sunday

Fourth Monday

Last Wednesday

Last weekday in September

Fixed Gregorian observances

References

External links

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 ...