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 dif ...

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 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 is on 1 September. In the Southern hemisphere, the beginning of the meteorological

spring Spring(s) may refer to: Common uses * Spring (season) Spring, also known as springtime, is one of the four temperate seasons, succeeding winter and preceding summer. There are various technical definitions of spring, but local usage of ...

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 whi ...

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 vi ...

. It is the start of the academic year in many countries of the northern hemisphere, in which children go back to school after the

summer break 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 sometim ...

, the calendar of Romulus , with March (Latin '' Martius'') the first month of the year until perhaps as late as 451 BC. After the calendar reform that added January and February to the beginning of the year, September became the ninth month but retained its name. It had 29 days until the Julian reform, which added a day.

September events

Ancient Roman observances for September include

Ludi Romani The ''Ludi Romani'' ("Roman Games"; see '' ludi'') was a religious festival in ancient Rome. Usually including multiple ceremonies called '' ludi''. They were held annually starting in 366 BC from September 12 to September 14, later extended to ...

, originally celebrated from September 12 to September 14, later extended to September 5 to September 19. In the 1st century BC, an extra day was added in honor of the deified Julius Caesar on 4 September.

Epulum Jovis In ancient Roman religion, the Epulum Jovis (also Epulum Iovis) was a sumptuous ritual feast offered to Jove on the Ides of September (September 13) and a smaller feast on the Ides of November (November 13). It was celebrated during the '' Ludi ...

was held on September 13.

Ludi Triumphales In the Roman Empire of the 4th century, the ''Ludi Triumphales'' ("Triumphal Games") were games ''( ludi)'' held annually September 18–22 to commemorate the victory of Constantine over Licinius at Chalcedon in 324. No description of these gam ...

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 ...

'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, Fr ...

and partly to the

Vendémiaire Vendémiaire () was the first month in the French Republican calendar. The month was named after the Occitan word ''vendemiaire'' (grape harvester). Vendémiaire was the first month of the autumn quarter (''mois d'automne''). It started on the ...

of the first French republic. September is called ''Herbstmonat'', harvest month, in Switzerland. The Anglo-Saxons 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 the ...

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) 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 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 Aster or ASTER may refer to: Biology * ''Aster'' (genus), a genus of flowering plants ** List of ''Aster'' synonyms, other genera formerly included in ''Aster'' and still called asters in English * Aster (cell biology), a cellular structure shap ...

. * 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 pat ...

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 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 onwards).. Signs in UT/GMT for 1950–2030.

Observances

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

Non-Gregorian observances: 2020 dates

* List of observances set by the Bahá'í calendar * List of observances set by the Chinese calendar *

List of observances set by the Hebrew calendar 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 Dates in this table are determined by when the March Equinox falls. It will fall on March 20 from 2018-2023. {, class="wikitable" , - style="background:#efefef;" ! Holiday date !!Holiday name !! Description !!March equinox on March 19 !!March Eq ...

Month-long observances

* 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

United States observances

* Better Breakfast Month * Food Safety Education Month * National Childhood Obesity Awareness Month * Hydrocephalus Awareness Month *

Pain Awareness Month September is Pain Awareness Month in the United States. The American Chronic Pain Association (ACPA) declared this month to “raise public awareness of issues in the area of pain and pain management.” History In 2001, the ACPA led a coalit ...

National Preparedness Month Since its inception in 2004, National Preparedness Month is observed each September in the United States of America. It is sponsored by the Federal Emergency Management Agency (FEMA) within the Department of Homeland Security and encourages America ...

* National Prostate Health Month * 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 postures, often connected by flowing sequences, sometimes accompanied by breathing exercises, and frequently ending with relaxation lying down or meditation. Yoga in this form has ...

= 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 He ...

* 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 Beekeeping in the United States, American beekeeping, the beekeeping industry, and honey as a ...

* 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 *

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 lea ...

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 count ...

) *See also

Movable Western Christian observances {{Use mdy dates, date=July 2017 This is a list of movable observances within Western Christianity. It includes secular observances which are calculated by religious observances. ''This list does not necessarily imply either official status nor gen ...

*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 Southern Africa, southernmost country in Africa. It is bounded to the south by of coastline that stretch along the Atlantic Ocean, South Atlantic and Indian Oceans; to the ...

)

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 (

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 Intern ...

) *

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 Brazi ...

(

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, Fiji,

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 (

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 b ...

and

Scotland Scotland (, ) is a Countries of the United Kingdom, country that is part of the United Kingdom. Covering the northern third of the island of Great Britain, mainland Scotland has a Anglo-Scottish border, border with England to the southeast ...

) **

Abbots Bromley Horn Dance The Abbots Bromley Horn Dance is an English folk dance dating back to the Middle Ages. The dance takes place each year in Abbots Bromley, a village in Staffordshire, England. The modern version of the dance involves reindeer antlers, a hobby h ...

(

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,

)

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, an ...

(

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 primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territori ...

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 tot ...

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 European mainland, continental mainland. It comprises England, Scotlan ...

)

Week of September 10

* National Suicide Prevention Week (

)

First Monday

* Labour Day (

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 sout ...

)

Saturday after first Monday

Carl Garner Federal Lands Cleanup Day Carl Garner Federal Lands Cleanup Day is a day observed in the United States to encourage nationwide citizen participation in the cleanup of federal lands. It occurs on the first Saturday after Labor Day, and may include a variety of programs, ...

(

)

Second Sunday

* Auditor's Day ( Church of Scientology) *

( Latvia) * National Grandparents' Day (

Estonia Estonia, formally the Republic of Estonia, is a country by the Baltic Sea in Northern Europe. It is bordered to the north by the Gulf of Finland across from Finland, to the west by the sea across from Sweden, to the south by Latvia, a ...

) * 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-eig ...

) * Turkmen Bakhshi Day (

)

First Sunday after first Monday

* National Grandparents' Day (

)

Week of September 17

* Celebrate Freedom Week (

Kansas Kansas () is a state in the Midwestern United States. Its capital is Topeka, and its largest city is Wichita. Kansas is a landlocked state bordered by Nebraska to the north; Missouri to the east; Oklahoma to the south; and Colorado to th ...

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 (

)

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, local dates may vary) *

Software Freedom Day Software Freedom Day (SFD) is an annual worldwide celebration of Free Software organized by the Digital Freedom Foundation (DFF). SFD is a public education effort with the aim of increasing awareness of Free Software and its virtues, and enc ...

(

)

Weekend of the week of September 17

Von Steuben Day Von Steuben Day is a holiday traditionally held on a weekend in mid-September (von Steuben was born September 17), celebrating the Prussian-born Baron Friedrich von Steuben, who arrived in the United States as a volunteer offering his services t ...

(

)

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—alo ...

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 th ...

) *

(

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 inv ...

) *

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 dio ...

( Switzerland) * Warachikuy ( Cusco,

Peru , image_flag = Flag of Peru.svg , image_coat = Escudo nacional del Perú.svg , other_symbol = Great Seal of the State , other_symbol_type = National seal , national_motto = "Firm and Happy f ...

)

Week of Sunday before September 23

Bisexual Awareness Week The Bisexual Awareness Week, also known as #BiWeek, is an annual celebration held from September 16–23. It is an extension of Celebrate Bisexuality Day, held annually on September 23. The celebration promotes cultural acceptance of the bise ...

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 individu ...

(

Last full week

* National Forest Week (

) ** National Tree Day (Wednesday of last full week): * Celebrate Freedom 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 to ...

)

Third Monday

Respect for the Aged Day is a public holiday in Japan celebrated annually to honor elderly citizens. It started in 1966 as a national holiday and was held on every September 15. Since 2003, Respect for the Aged Day is held on the third Monday of September due to the Ha ...

( Japan)

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 ...

( Japan) ** French Republican New Year. (defunct) * Guldize (

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 ...

( Japan) * Mabon ( Neopaganism, Northern Hemisphere) * Miķeļi ( Latvia) * Ostara ( Neopaganism, Southern Hemisphere)

Fourth Friday

Native American Day Native American Day is a holiday observed in several states in celebration of Native American culture. In California and Nevada, the holiday is designated on the fourth Friday of September, whereas in South Dakota and Wisconsin, it falls on the ...

(

California California is a state in the Western United States, located along the Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the most populous U.S. state and the 3rd largest by area. It is also the m ...

)

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 (

)

Fourth Monday

* American Indian Day (

Tennessee Tennessee ( , ), officially the State of Tennessee, is a landlocked state in the Southeastern region of the United States. Tennessee is the 36th-largest by area and the 15th-most populous of the 50 states. It is bordered by Kentucky to th ...

) * 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 (

India India, officially the Republic of India (Hindi: ), is a country in South Asia. It is the seventh-largest country by area, the second-most populous country, and the most populous democracy in the world. Bounded by the Indian Ocean on the so ...

)

Fixed Gregorian observances

September 1 Events Pre-1600 *1145 – The main altar of Lund Cathedral, at the time 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 Ancona b ...

** Anniversary of the Start of the Armed Struggle ( Eritrea) ** Constitution Day (Slovakia) ** Disaster Prevention Day ( Japan) ** 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) **

Independence Day (Uzbekistan) Independence Day ( uz, O'zbekiston Respublikasi Mustaqilligi kuni) is an official national holiday in Uzbekistan, celebrated on the first of September. fireworks, concerts, competitions, military parades, and wreath laying ceremonies are held in Ta ...

** Journalist Day (

Taiwan Taiwan, officially the Republic of China (ROC), is a country in East Asia, at the junction of the East and South China Seas in the northwestern Pacific Ocean, with the People's Republic of China (PRC) to the northwest, Japan to the nort ...

) **

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 ' ...

) ** 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 (

), 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 Wattle Day is a day of celebration in Australia on the first day of September each year, which is the official start of the Australian spring. This is the time when many ''Acacia'' species (commonly called wattles in Australia), are in flower. So, ...

( Australia) *

** 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, Taman ...

) ** Independence Day (Transnistria, unrecognized) ** Independence Day (

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) **

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, 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 the ...

**China's

victory over Japan 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 ...

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) ***

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) ** Independence Day (

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 ...

) ** Levy Mwanawasa Day (

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

) **

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 Scientology as a business, business, or a new religious movement. The most recent ...

) ** 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 Jazeer ...

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) ** Independence Day (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) **

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 ( Australia) **

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 Theodo ...

** 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 The Nativity of the Blessed Virgin Mary, the Nativity of Mary, the Marymas or the Birth of the Virgin Mary, refers to a Christian feast day celebrating the birth of Mary, mother of Jesus. The modern canon of scripture does not record Mary's bi ...

(

), (

Anglo-Catholicism Anglo-Catholicism comprises beliefs and practices that emphasise the Catholic heritage and identity of the various Anglican churches. The term was coined in the early 19th century, although movements emphasising the Catholic nature of Anglican ...

) ***

Monti Fest ''Monti Fest'' is a major Catholic festival held on 8 September every year by the Latin Christian community of Konkani people, originating in the Konkan region of India, and their descendants in the Canara region of south India. This festiv ...

( Mangalorean Catholic) **

(Pakistan) **

Victory Day (Malta) Victory Day (or ''Otto settembre'') is a public holiday celebrated in Malta on 8 September and recalls the end of three historical sieges made on the Maltese archipelago, namely: the Great Siege of Malta by the Ottoman Empire ending in 1565; the ...

** World Physical Therapy Day *

September 9 Events Pre-1600 * 337 – Constantine II, Constantius II, and Constans succeed their father Constantine I as co-emperors. The Roman Empire is divided between the three Augusti. *1000 – Battle of Svolder, Viking Age. * 1141 – ...

** Armored Forces Day (Ukraine) **

California Admission Day An Act for the Admission of the State of California into the Union is the federal legislation that admitted California to the United States as the thirty-first state. California is one of only a few states to become a state without first being ...

(

, United States) **

Children's Day Children's Day is a commemorative date celebrated annually in honor of children, whose date of observance varies by country. In 1925, International Children's Day was first proclaimed in Geneva during the World Conference on Child Welfare. Sin ...

(Costa Rica) **

Chrysanthemum Day The Double Ninth Festival (''Chong Yang Festival'' or ''Chung Yeung Festival'' in Mainland China, Hong Kong, Macau, and Taiwan; ; ''Jungyangjeol'' (Hangul: , Hanja: ), observed on the ninth day of the ninth month in the Chinese calendar, is a ...

( Japan) ** Day of the Victims of Holocaust and of Racial Violence (Slovakia) ** Emergency Services Day (United Kingdom) ** Independence Day or Republic Day (North Korea) ** Independence Day (Tajikistan) from

USSR The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, it was nominally a federal union of fifteen nationa ...

in 1991. **

(date may fall on September 8, follows a non-Gregorian calendar) ** National Steak Au Poivre Day (United States) ** Remembrance for Herman the Cheruscan (

The Troth The Troth, formerly the Ring of Troth, is an American-based international heathen organization.On its main ...

) ** Wienerschnitzel Day (United States) ** Wonderful Weirdos Day *

September 10 Events Pre-1600 * 506 – The bishops of Visigothic Gaul meet in the Council of Agde. *1419 – John the Fearless, Duke of Burgundy is assassinated by adherents of the Dauphin, the future Charles VII of France. * 1509 – An eart ...

** Amerindian Heritage Day (Guyana) **

(Honduras) ** National Day (

Gibraltar ) , anthem = " God Save the King" , song = " Gibraltar Anthem" , image_map = Gibraltar location in Europe.svg , map_alt = Location of Gibraltar in Europe , map_caption = United Kingdom shown in pale green , mapsize = , image_map2 = Gib ...

) ** National TV Dinner Day (

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

(China) **

World Suicide Prevention Day World Suicide Prevention Day (WSPD) is an awareness day observed on 10 September every year, in order to provide worldwide commitment and action to prevent suicides, with various activities around the world since 2003. The International Associat ...

September 11 Events Pre-1600 * 9 – The Battle of the Teutoburg Forest ends: The Roman Empire suffers the greatest defeat of its history and the Rhine is established as the border between the Empire and the so-called barbarians for the next four hu ...

** Battle of Tendra Day (Russia) ** Death Anniversary of Quaid-e-Azam Muhammad Ali Jinnah, a former holiday. (Pakistan) ** Emergency Number Day (United States) **

Enkutatash Enkutatash ( Ge'ez: እንቁጣጣሽ) is a public holiday in coincidence of New Year in Ethiopia and Eritrea. It occurs on Meskerem 1 on the Ethiopian calendar, which is 11 September (or, during a leap year, 12 September) according to the Grego ...

falls on this day if it is not a leap year.(Ethiopia, Rastafari) **

National Day of Catalonia ) , type = National day , longtype = National day , significance = Commemorates the fall of Barcelona during the War of the Spanish Succession in 1714. , image = Rafael Casanova 11 Setembre.jpg , caption = Floral of ...

(

Catalonia Catalonia (; ca, Catalunya ; Aranese Occitan: ''Catalonha'' ; es, Cataluña ) is an autonomous community of Spain, designated as a '' nationality'' by its Statute of Autonomy. Most of the territory (except the Val d'Aran) lies on the nort ...

) ** National Hot Cross Bun Day (United States) **

Nayrouz Nayrouz or Neyrouz (Arabic Nārūz < Persian Nawruz) is a feast when

martyr

s and

( Coptic Orthodox Church) **

(United States) ** Remember Freedom Day **

(Argentina) *

September 12 Events Pre-1600 *490 BC – Battle of Marathon: The conventionally accepted date for the Battle of Marathon. The Athenians and their Plataean allies defeat the first Persian invasion force of Greece. * 372 – Sixteen Kingdoms: Jin ...

Most Holy Name of the Blessed Virgin Mary The Feast of the Most Holy Name of the Blessed Virgin Mary is an optional memorial celebrated in the liturgical calendar of the Catholic Church on 12 September. It has been a universal Roman Rite feast since 1684, when Pope Innocent XI included it ...

** Day of Conception (Russia) **

, during a

leap year A leap year (also known as an intercalary year or bissextile year) is a calendar year that contains an additional day (or, in the case of a lunisolar calendar, a month) added to keep the calendar year synchronized with the astronomical year or ...

. (International) **

Defenders Day Defenders Day may refer to one of several public holidays: *Defenders Day (Maryland) * Defenders Day (Ukraine) * Defender of the Fatherland Day (Kazakhstan) * Defender of the Motherland Day (Uzbekistan) *Defender of the Fatherland Day Defender o ...

(

Maryland Maryland ( ) is a state in the Mid-Atlantic region of the United States. It shares borders with Virginia, West Virginia, and the District of Columbia to its south and west; Pennsylvania to its north; and Delaware and the Atlantic Ocean to ...

. (United States) **

falls on this day if it is a leap year. (Ethiopia, Rastafari) ** Mindfulness Day ** National Chocolate Milkshake Day (United States) ** National Day (Cape Verde) ** National Day of Encouragement (United States) ** Saragarhi Day (

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

September 13 Events Pre-1600 * 585 BC – Lucius Tarquinius Priscus, king of Rome, celebrates a triumph for his victories over the Sabines, and the surrender of Collatia. * 509 BC – The Temple of Jupiter Optimus Maximus on Rome's Capitoline Hi ...

, during a non-

. (International) **

Feast of the Cross In the Christian liturgical calendar, there are several different Feasts of the Cross, all of which commemorate the cross used in the crucifixion of Jesus. Unlike Good Friday, which is dedicated to the passion of Christ and the crucifixion, th ...

( Assyrian Church of the East) **'' Día de los Niños Héroes'' (Mexico) **

(Mauritius) ** International Chocolate Day ** National Peanut Day (

) *

(Nepal) (celebrated on the 15th on leap years) **

(Romania) **

(Christianity) ***

Elevation of the Holy Cross The Elevation of the Holy Cross ( el, Ύψωση του Τιμίου Σταυρού; also known as the Exaltation of the Holy Cross) is one of the Great Feasts of the Orthodox Church, celebrated on September 14. It is one of the two feast days wh ...

(

Eastern Orthodox Eastern Orthodoxy, also known as Eastern Orthodox Christianity, is one of the three main branches of Chalcedonian Christianity, alongside Catholicism and Protestantism. Like the Pentarchy of the first millennium, the mainstream (or " canonical ...

) ** Hindi Diwas ( Hindi-speaking regions) ** Mobilized Servicemen Day (Ukraine) ** National Cream Filled Donut Day (

) ** National Eat a Hoagie Day (United States) **

San Jacinto Day San Jacinto Day is the celebration of the Battle of San Jacinto on April 21, 1836. It was the final battle of the Texas Revolution where Texas won its independence from Mexico. It is an official "partial staffing holiday" in the State of Texas ...

(Nicaragua) *

September 15 Events Pre-1600 * 994 – Major Fatimid victory over the Byzantine Empire at the Battle of the Orontes. *1440 – Gilles de Rais, one of the earliest known serial killers, is taken into custody upon an accusation brought against him by ...

Battle of Britain Day Battle of Britain Day, 15 September 1940, is the day on which a large-scale aerial battle in the Battle of Britain took place.Mason 1969, p. 386.Price 1990, p. 128. In June 1940, the '' Wehrmacht'' had conquered most of Western Europe and Sc ...

(United Kingdom) **

(Nepal) (leap years only) **

(India) **

Free Money Day Free Money Day is an annual global event held since 2011 as a social experiment and to promote sharing and alternative economic ideas. Overview The day is held annually on September 15, the anniversary of the Lehman Brothers' 2008 filing fo ...

(International) ** Independence Day (Guatemala, El Salvador, Honduras, Nicaragua, and Costa Rica) **

International Day of Democracy In 2007 the United Nations General Assembly resolved to observe 15 September as the International Day of Democracywith the purpose of promoting and upholding the principles of democracyand invited all member states and organizations to commemorat ...

(

International International is an adjective (also used as a noun) meaning "between nations". International may also refer to: Music Albums * ''International'' (Kevin Michael album), 2011 * ''International'' (New Order album), 2002 * ''International'' (The T ...

) **

(Azerbaijan) ** National Crème de Menthe Day (

) ** National Double Cheeseburger Day (

) ** National Linguine Day (

) ** National Cheese Toast Day (

) ** Patriotic Day (Guatemala) ** Restoration of Primorska to the Motherland Day (Slovenia) ** Silpa Bhirasri Day (Thailand). ** World Lymphoma Awareness Day **The beginning of

National Hispanic Heritage Month National Hispanic Heritage Month (Spanish: ''Mes nacional de la herencia hispana'') is annually celebrated from September 15 to October 15 in the United States for recognizing the contributions and influence of Hispanic Americans to the history, cul ...

, celebrated until October 15 (United States) *

September 16 Events Pre-1600 * 681 – Pope Honorius I is posthumously excommunicated by the Sixth Ecumenical Council. *1400 – Owain Glyndŵr is declared Prince of Wales by his followers. 1601–1900 *1620 – A determined band of 35 religio ...

Grito de Dolores A ''grito'' or ''grito mexicano'' (, Spanish for "shout") is a common Mexican interjection, used as an expression. Characteristics This interjection is similar to the ''yahoo'' or '' yeehaw'' of the American cowboy during a hoedown, with added ...

(Mexico) **

Independence Day (Papua New Guinea) This is a list of holidays in the Papua New Guinea. List References Papua New Guinea Papua New Guinea (abbreviated PNG; , ; tpi, Papua Niugini; ho, Papua Niu Gini), officially the Independent State of Papua New Guinea ...

, celebrates the independence of Papua New Guinea from Australia in 1975. **

International Day for the Preservation of the Ozone Layer International Day for the Preservation of the Ozone Layer (informally and simply called Ozone Day) is celebrated on September 16 designed by the United Nations General Assembly. This designation had been made on December 19, 2000, in commemorat ...

** Malaysian Armed Forces Day (Malaysia) **

Malaysia Day Malaysia Day ( ms, Hari Malaysia) is a public holiday held on 16 September every year to commemorate the establishment of the Malaysian federation on that date in 1963. This event saw Malaya, North Borneo (which was renamed Sabah), Sarawak, ...

(Malaysia, Singapore) **

Martyrs' Day Martyrs' Day is an annual day observed by nations to salute the martyrdom of soldiers who lost their lives defending the sovereignty of the nation. The actual date may vary from one country to another. Here is a list of countries and Martyrs' Days. ...

(Libya) **

Heroes' Day Heroes' Day or National Heroes' Day may refer to a number of commemorations of national heroes in different countries and territories. It is often held on the birthday of a national hero or heroine, or the anniversary of their great deeds that ...

(Saint Kitts and Nevis) ** National Cinnamon Raisin Toast Day (

) ** National Guacamole Day (

) ** Stay Away from Seattle Day * September 17 **

Australian Citizenship Day Australian Citizenship Day is celebrated each year on 17 September. Managed by the Australian Department of Home Affairs, Australian Citizenship Day is an opportunity for all Australian citizens, whether by birth or by choice, to reflect o ...

(observed on the previous Friday if it falls on a Saturday, the following Monday if on a Sunday) **Start of

Constitution Week Constitution Week is an American observance to commemorate the adoption of the United States Constitution. History The observance runs annually from September 17 to September 23. It was officially enacted on August 2, 1956, by President Dwight D. ...

, runs from September 17–23 ** Heroes' Day (Angola) **

Marathwada Liberation Day Marathwada Liberation Day, also known as Marathwada Mukti Sangram Din is celebrated in Maharashtra on 17 September annually. It marks the anniversary of Indian integration of Hyderabad, Marathwada's integration with India when the Indian militar ...

(India) ** National Apple Dumpling Day (

) ** National Monte Cristo Sandwich Day (

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

(Honduras) **

. (United States), weekend of the week of September 17. *

September 18 Events Pre-1600 * 96 – Domitian, who has been conducting a reign of terror for the past three years, is assassinated as a result of a plot by his wife Domitia and two Praetorian prefects. * 96 – Nerva is proclaimed Roman emperor a ...

Day of National Music There are several public holidays in Azerbaijan. Public holidays were regulated in the constitution of the Azerbaijan SSR for the first time on 19 May 1921. They are now regulated by the Constitution of Azerbaijan. Holidays Main holidays Othe ...

(Azerbaijan) **First day of

Fiestas Patrias (Chile) The Fiestas Patrias (literally Homeland Holidays) of Chile consist of two days, with a third one added on some years: * 18 September, in commemoration of the proclamation of the First Governing Body of 1810, and marking the beginning of th ...

or ''Dieciocho'' (Chile) ** Island Language Day ( Okinawa Prefecture, Japan) ** National Cheeseburger Day (

) **

Navy Day Several nations observe or have observed a Navy Day to recognize their navy. By country Argentina The Argentine Navy day is celebrated on May 17, anniversary of the victory achieved in 1814 in the Battle of Montevideo. Bahrain The R ...

(Croatia) **

World Water Monitoring Day World Water Monitoring Day was an international day established in 2003 by America's Clean Water Foundation (ACWF) as a global educational outreach program. The program, subsequently named the "World Water Monitoring Challenge" and "EarthEcho Wat ...

(

) *

September 19 Events Pre-1600 * 85 – Nerva, suspected of complicity of the death of Domitian, is declared emperor by Senate. The Senate then annuls laws passed by Domitian and orders his statues to be destroyed. * 634 – Siege of Damascus: Th ...

** Armed Forces Day (Chile) ** Day of the First Public Appearance of the Slovak National Council **

Feast of San Gennaro The Feast of San Gennaro (in Italian: ''Festa di San Gennaro''), also known as San Gennaro Festival, is a Neapolitan and Italian-American patronal festival dedicated to Saint Januarius, patron saint of Naples and Little Italy, New York. His feas ...

**Second day of

** Independence Day (

Saint Kitts and Nevis Saint Kitts and Nevis (), officially the Federation of Saint Christopher and Nevis, is an island country and microstate consisting of the two islands of Saint Kitts and Nevis, both located in the West Indies, in the Leeward Islands chain ...

) **

International Talk Like a Pirate Day International Talk Like a Pirate Day is a parodic holiday created in 1995 by John Baur and Mark Summers of Albany, Oregon, who proclaimed September 19 each year as the day when everyone in the world should talk like a pirate.National Butterscotch Pudding Day (

) *

September 20 Events Pre-1600 *1058 – Agnes of Poitou and Andrew I of Hungary meet to negotiate about the border territory of Burgenland. *1066 – At the Battle of Fulford, Harald Hardrada defeats earls Morcar and Edwin. *1187 – Saladin b ...

** Independence Day of South Ossetia (not fully recognized) ** National Pepperoni Pizza Day (

) ** National Punch Day (

) ** National Rum Punch Day (

) ** National Youth Day (Thailand) ** Oil Workers' Day (Azerbaijan) **

Universal Children's Day (Germany) Children's Day is a commemorative date celebrated annually in honor of children, whose date of observance varies by country. In 1925, International Children's Day was first proclaimed in Geneva during the World Conference on Child Welfare. Sin ...

September 21 Events Pre-1600 * 455 – Emperor Avitus enters Rome with a Gallic army and consolidates his power. * 1170 – The Kingdom of Dublin falls to Norman invaders. * 1217 – Livonian Crusade: The Estonian leader Lembitu and Livonian ...

** Arbor Day (Brazil) ** Commemoration of the Declaration of Martial Law (

Philippines The Philippines (; fil, Pilipinas, links=no), officially the Republic of the Philippines ( fil, Republika ng Pilipinas, links=no), * bik, Republika kan Filipinas * ceb, Republika sa Pilipinas * cbk, República de Filipinas * hil, Republ ...

) ** Customs Service Day (

) ** Founder's Day and National Volunteer Day (

Ghana Ghana (; tw, Gaana, ee, Gana), officially the Republic of Ghana, is a country in West Africa. It abuts the Gulf of Guinea and the Atlantic Ocean to the south, sharing borders with Ivory Coast in the west, Burkina Faso in the north, and To ...

) ** Independence Day, celebrates the independence of

from the

Soviet Union The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, ...

in 1991. ** Independence Day, celebrates the independence of

Belize Belize (; bzj, Bileez) is a Caribbean and Central American country on the northeastern coast of Central America. It is bordered by Mexico to the north, the Caribbean Sea to the east, and Guatemala to the west and south. It also shares a wate ...

from the United Kingdom in 1981. ** Independence Day, celebrates the independence of

Malta Malta ( , , ), officially the Republic of Malta ( mt, Repubblika ta' Malta ), is an island country in the Mediterranean Sea. It consists of an archipelago, between Italy and Libya, and is often considered a part of Southern Europe. It lies ...

from the United Kingdom in 1964. **International Day of Peace (

) **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 ** Ask a Stupid Question Day (

) **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 (

) **

(

and Chinese-Filipino schools in the

) **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 ...