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 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 Marc ...

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 ( Sou ...

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 ...

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 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 Roman dictator, dictator Julius Caesar and Roman emperor, emperor Augustus in the ...

, 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 (753–509 BC ...

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 S ...

, 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 Ro ...

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 h ...

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, an ...

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 Holy ...

'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 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 identity, 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- ...

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 esta ...

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 them ...

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 o ...

. 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 was ...

, 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 anytime ...

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 A gemstone (also called a fine gem, jewel, precious stone, or semiprecious stone) is a piece of mineral crystal which, in cut and polished form, is used to make jewelry or other adornments. However, certain rock ...

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 "sapphir ...

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-nots ...

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 Sun path, apparent path of the Sun across the celestial sphere over the course of the year. ...

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 Supe ...

(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 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 union ...

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 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) 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 (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 of ...

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 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 Heredity, 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 i ...

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 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 of ...

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 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 countri ...

)

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 has proclaimed March 4 as 'UNESCO World Engineering Day for ...

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 and ...

)

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 Internati ...

) *

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, borde ...

)

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, Unleavened Bread – 7 days of consumption of matzo with wine and avoidance ...

) *

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 United ...

(

Australia Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, sma ...

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 consists ...

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 b ...

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 the ...

) **

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 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 Cou ...

)

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 territorie ...

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 continental mainland. It comprises England, Scotland, Wales and North ...

)

Week of September 10

* National Suicide Prevention Week (

)

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 Caro ...

)

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 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 scientology as a business, bu ...

) *

(

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 (

, Estonia) *Public holidays in Russia#Popular holidays which are not public holidays, Tanker's Day (Russia) *Public holidays in Turkmenistan, Turkmen Bakhshi Day (

)

First Sunday after first Monday

*National Grandparents' Day (

)

Week of September 17

*Celebrate Freedom Week (Kansas and Texas,

)

Third Tuesday

*Prinsjesdag (Netherlands)

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

*Constitution Day (United States)

Third Friday

*National POW/MIA Recognition Day (

)

Third Saturday

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

)

Weekend of the week of September 17

*Von Steuben Day (

)

Third Sunday

*Day of the Walloon Region (Wallonia, Belgium) *

(Ukraine) *Federal Day of Thanksgiving, Repentance and Prayer (Switzerland) *Warachikuy (Cusco, Peru)

Week of Sunday before September 23

*List of LGBT holidays, Bisexual Awareness Week

Week of September 22

*Hobbit Day, Tolkien Week

Last week

*Banned Books Week (

Last full week

*National forest week, National Forest Week (

) **Arbor Day#Canada, National Tree Day (Wednesday of last full week): *Celebrate Freedom Week (Arkansas and Florida,

)

Third Monday

*Respect for the Aged Day (Japan)

Observances pertaining to the September Equinox

*Autumnal Equinox Day (Japan) **French Republican Calendar, French Republican New Year. (defunct) *Guldize (Cornish people) *Higan (Japan) *Wheel of the Year#Autumnal equinox .28Mabon.29, Mabon (Neopaganism,

) *Miķeļi (

) *Wheel of the Year#Vernal Equinox .28Ostara.29, Ostara (Neopaganism, Southern Hemisphere)

Fourth Friday

*Native American Day (California,

)

Last Friday

*Public holidays in the Marshall Islands, Manit Day (

)

Last Saturday

*Women in Aviation, International#Girls in Aviation Day, Girls in Aviation Day (

) *National Public Lands Day (

)

Last Sunday

*Daylight saving time begins (

) *Gold Star Mothers Club, Gold Star Mother's Day (

)

Fourth Monday

*American Indian Day (Tennessee,

) *September Declaration (Flanders, Belgium)

Last Wednesday

*Arbor Day#Canada, Maple Leaf Day (

)

Last weekday in September

*Ask a Stupid Question Day (India,

)

Fixed Gregorian observances

*September 1 **List of holidays by country#Eritrea, Anniversary of the Start of the Armed Struggle (Eritrea) **Constitution Day (Slovakia) **1923 Great Kantō earthquake, Disaster Prevention Day (Japan) **Emma Nutt#Commemoration, Emma Nutt Day (

) **First day of school in many countries in Asia, Europe and the Americas. **Flag Day (Honduras) **Independence Day (Uzbekistan) **Journalist Day (Taiwan) **Knowledge Day (Russia, Ukraine and Armenia) **List of food days#September, National Cherry Popover Day (

) **Random Acts of Kindness Day (

) **Start of National Arbor Week (

), September 1–7 **Public holidays in Poland#Holidays declared by statute, Veteran's Day (Poland) **

(

) **Wattle Day (

) *

**Parliament of the Central Tibetan Administration, Democracy Day (Tibet) **Independence Day (Transnistria, unrecognized) **Independence Day (Nagorno-Karabakh Republic, unrecognized) **List of food days#September, National Blueberry Popsicle Day (

) **National Day (Vietnam) **Sedantag (German Empire, defunct) **Victory over Japan Day (

) *September 3 **China's Victory over Japan Day, victory over Japan commemoration related observances: ***Armed Forces Day#Republic of China, Armed Forces Day (Republic of China) ***Victory over Japan Day#China, V-J Day (People's Republic of China) **Feast of San Marino and the Republic (Republic of San Marino) **Flag Day (Australia) **Independence Day (Qatar) **Levy Mwanawasa Day (Zambia) **Memorial Day (Tunisia) **Canadian Merchant Navy, Merchant Navy Remembrance Day (

) **Merchant Navy (United Kingdom) **List of food days#September, National Welsh Rarebit Day (

) **Public holidays in Tokelau, Tokehega Day (Tokelau,

) *September 4 **Scientology holidays, Clear Day (Scientology) **Immigration to Argentina, Immigrant's Day (Argentina) **List of food days#September, National Macadamia Nut Day (

) **Newspaper Carrier Day (

) *September 5 **International Day of Charity **List of food days#September, National Cheese Pizza Day (

) **

(India) *September 6 **Public holidays in São Tomé and Príncipe, Armed Forces Day (São Tomé and Príncipe) **Public holidays in Pakistan, Defence Day or Armed Forces Day#Pakistan, Army Day (Pakistan) **Flag Day (Bonaire) **Independence Day (Eswatini) **List of food days#September, National Coffee Ice Cream Day (

) **Unification Day (Bulgaria) *September 7 **Air Force Day (Pakistan) **Independence Day (Brazil) **Armed Forces of Ukraine#Military holidays, Military Intelligence Day (Ukraine) **List of food days#September, National Acorn Squash Day (

) **List of food days#September, National Beer Lover's Day (

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

) **Benjamin the thylacine, National Threatened Species Day (

) **Public holidays in Mozambique, Victory Day (Mozambique) *September 8 **Days of Military Honour, Day of the Battle of Borodino (Russia) **Our Lady of Meritxell, Feast Day of Our Lady of Meritxell (Andorra) **Independence Day (North Macedonia) **International Literacy Day **Martyrs' Day (Afghanistan) (date may fall on September 9, follows a non-Gregorian calendar) **National day (Andorra) **Nativity of Mary (

), (Anglo-Catholicism) ***Monti Fest (Mangalorean Catholic) **Victory Day#September 8 in Pakistan, Victory Day (Pakistan) **Victory Day (Malta) **World Physical Therapy Day *September 9 **Armed Forces of Ukraine#Military holidays, Armored Forces Day (Ukraine) **California Admission Day (California, United States) **Children's Day (Costa Rica) **Chrysanthemum Day (Japanese calendar#National holidays, Japan) **Remembrance days in Slovakia, Day of the Victims of Holocaust and of Racial Violence (Slovakia) **Emergency Services Day (United_Kingdom), Emergency Services Day (United Kingdom) **Public holidays in North Korea, Independence Day or Republic Day (North Korea) **Independence Day (Tajikistan) from USSR in 1991. **Martyrs' Day (Afghanistan) (date may fall on September 8, follows a non-Gregorian calendar) **List of food days#September, National Steak Au Poivre Day (United States) **Ásatrú holidays#The Troth, Remembrance for Herman the Cheruscan (The Troth) **List of food days#September, Wienerschnitzel Day (United States) **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) **Independence Day (Guatemala, El Salvador, Honduras, Nicaragua, and Costa Rica) **International Day of Democracy (International observance, International) **Public holidays in Azerbaijan#Other observances, Knowledge Day (Azerbaijan) **List of food days#September, National Crème de Menthe Day (

) **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 **Constitution Day (United States) (observed on the previous Friday if it falls on a Saturday, the following Monday if on a Sunday) **Start of Constitution Week, runs from September 17–23 **Heroes' Day (Angola) **Marathwada Liberation Day (India) **List of food days#September, National Apple Dumpling Day (

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

) *September 20 **Independence Day 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 (Poland) **Founder's Day (Ghana), Founder's Day and National Volunteer Day (Ghana) **Independence Day (Armenia), Independence Day, celebrates the independence of Armenia from the Soviet Union in 1991. **Independence Day (Belize), Independence Day, celebrates the independence of Belize from the United Kingdom in 1981. **Independence Day (Malta), Independence Day, celebrates the independence of Malta from the United Kingdom in 1964. **International Day of Peace (International observance, International) **List of food days#September, National Pecan Cookie Day (

) **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 (Estonia) **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 (Mozambique) *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 (Poland) **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 (Philippines) **

(Taiwan and Chinese-Filipino schools in the Philippines) **World Rabies Day *September 29 ** Feast of the Archangels Michael (archangel), Michael, Gabriel, and Raphael (archangel), Raphael. **List of food days#September, National Biscotti Day (

) **International Coffee Day, National Coffee Day (multiple countries, see article) **Inventors' Day (Argentina) **Michaelmas One of the four quarter days in the Irish calendar. (England and Ireland) **Victory of Boquerón Day (Paraguay) **World Heart Federation, World Heart Day *September 30 **Agricultural Reform (Nationalization) Day (São Tomé and Príncipe) **Birth of Morelos (Mexico) **Blasphemy Day (

, other countries) **Public holidays in Poland#Holidays declared by statute, Boy's Day (Poland) **Independence Day (Botswana) **International Translation Day (International Federation of Translators) **List of food days#September, National Hot Mulled Cider Day (

) **Recovery Day (

) **Orange Shirt Day (

)

References

External links

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