Calendarby GlyphSeptember 2030 calendar
September 2030
Coming upJune 2030
Coming upAugust 2030
Minnesota State Fair 2030State Fairgrounds, Falcon HeightsThe Great Minnesota Get-Together: twelve days ending on Labor Day.Minnesota State Fair, computedDetails →Paryushana (Svetambara)Eight days of fasting and reflection, the holiest time of the Jain year, ending on Samvatsari, the day of forgiveness (Michhami Dukkadam). Bhadrapada,...Wikipedia, computedDetails →
Coming upSeptember 2030
Ganesh ChaturthiThe birth of Ganesha; a ten-day festival ending with immersion (Anant Chaturdashi). Bhadrapada, Shukla 4. Regional dates can differ by a day.Wikipedia, computedDetails →Orthodox Church New Year (Revised Julian calendar)The Indiction, the start of the church year.Orthodox Church in America, computedDetails →Labor DayUnited StatesA public holiday in the United States, officially Labor Day.Nager.DateDetails →Das Lakshana Parva (Digambara)Ten days on the ten virtues, the Digambara Paryushana, ending on Anant Chaturdashi. Bhadrapada, Shukla 5. Regional dates can differ by a day.Wikipedia, computedDetails →Labour Day (Puerto Rico)Puerto RicoA public holiday in Puerto Rico, known locally as Día del Trabajo.Nager.DateDetails →National Day (Vietnam)VietnamA public holiday in Vietnam, known locally as Quốc khánh.Nager.DateDetails →First quarter moonThe Moon is half lit (waxing).NASA, computedDetails →75th anniversary: A white U.S. soldier raped and murdered a five-year-old local girl in Kadena,...In 1955, A white U.S. soldier raped and murdered a five-year-old local girl in Kadena, Okinawa.WikipediaDetails →125th anniversary: Under the mediation of U.S. president Theodore Roosevelt, the Russo-Japanese...In 1905, Under the mediation of U.S. president Theodore Roosevelt, the Russo-Japanese War officially ended with the signing of a treaty at the Portsmouth Naval...WikipediaDetails →25th anniversary: Mandala Airlines Flight 091 crashed shortly after take-off in Indonesia due to...In 2005, Mandala Airlines Flight 091 crashed shortly after take-off in Indonesia due to pilot error, killing 100 out of the 117 people on board along with 49...WikipediaDetails →International Day of CharityA United Nations international day.United NationsDetails →International Day of the World’s Indigenous Women and GirlsA United Nations international day.United NationsDetails →100th anniversary: Argentine president Hipólito Yrigoyen was deposed in a military coup by José...In 1930, Argentine president Hipólito Yrigoyen was deposed in a military coup by José Félix Uriburu.WikipediaDetails →Independence Day (Brazil)BrazilA public holiday in Brazil, known locally as Dia da Independência.Nager.DateDetails →International Day of Clean Air for Blue SkiesA United Nations international day.United NationsDetails →International Day of Police CooperationA United Nations international day.United NationsDetails →World Duchenne Awareness DayA United Nations international day.United NationsDetails →275th anniversary: French and Indian War: Despite being ambushed at the start of the Battle of...In 1755, French and Indian War: Despite being ambushed at the start of the Battle of Lake George, British colonial troops and their Mohawk allies were able to...WikipediaDetails →International Literacy DayA United Nations international day.United NationsDetails →Nativity of the Blessed Virgin MaryThe birthday of Mary.USCCB liturgical year, computedDetails →Nativity of the Theotokos (Revised Julian calendar)The birth of Mary, one of the Twelve Great Feasts.Orthodox Church in America, computedDetails →National Grandparents DayThe first Sunday after Labor Day.US Code, computedDetails →Onam (Thiruvonam)Kerala’s harvest festival and the homecoming of King Mahabali: pookalam flower carpets, the Onasadya feast and snake-boat races. Thiruvonam day in the month...Wikipedia, computedDetails →International Day to Protect Education from AttackA United Nations international day.United NationsDetails →Full moon: Harvest MoonTraditional North American name: Harvest Moon. Moon 383,989 km from Earth.NASA, computedDetails →Enkutatash and Nayrouz (Ethiopian and Coptic New Year)Meskerem 1 (Thout 1): the Ethiopian year 2023 and the Coptic year of the Martyrs 1747 begin.Ethiopian Orthodox Tewahedo Church, computedDetails →250th anniversary: American Revolutionary War: Approximately ten American soldiers were killed by...In 1780, American Revolutionary War: Approximately ten American soldiers were killed by Loyalists and their Native American allies in the Sugarloaf massacre in...WikipediaDetails →Chuseok (South Korea)South KoreaA public holiday in South Korea.Nager.DateDetails →Enkutatash (Ethiopia)EthiopiaA public holiday in Ethiopia.Nager.DateDetails →Mid-Autumn FestivalMooncakes under the harvest full moon; Chuseok in Korea falls on the same day. Day 15 of lunar month 8.Hong Kong Observatory, computedDetails →Chuseok (South Korea)South KoreaA public holiday in South Korea.Nager.DateDetails →Mid-Autumn Festival (China)ChinaA public holiday in China.Nager.DateDetails →Cao Dai: Festival of the Holy MotherThe feast of the Mother Goddess (Dieu Tri Kim Mau) at Tay Ninh. Day 15 of lunar month 8.Hong Kong Observatory, computedDetails →Gahambar Paitishahem (harvest)The third Gahambar, the grain harvest, in the Fasli calendar.avesta.org Zoroastrian calendars, computedDetails →United Nations Day for South-South CooperationA United Nations international day.United NationsDetails →Chuseok (South Korea)South KoreaA public holiday in South Korea.Nager.DateDetails →Day following the Mid-Autumn Festival (Hong Kong)Hong KongA public holiday in Hong Kong.Nager.DateDetails →25th anniversary: A software bug caused a simulated pandemic in the online video game World of...In 2005, A software bug caused a simulated pandemic in the online video game World of Warcraft, serving as a model for epidemiologists to understand how human...WikipediaDetails →Pope Leo XIV, born 1955 (75 years)Pope Leo XIV.WikipediaDetails →Elevation of the Holy Cross (Revised Julian calendar)One of the Twelve Great Feasts, a strict fast day.Orthodox Church in America, computedDetails →Exaltation of the Holy CrossHoly Cross Day: honors the cross, from the dedication of the Church of the Holy Sepulchre in 335.USCCB liturgical year, computedDetails →Orthodox Church New Year (Julian calendar)The Indiction, the start of the church year. September 1 in the Julian calendar.Orthodox Church in America, computedDetails →National Hispanic Heritage MonthNational Hispanic Heritage Month, observed across the US.Library of Congress and partners, computedDetails →Mercury at greatest western elongationMercury is 17.9° from the Sun, best seen in the morning sky.Astronomy Engine, computedDetails →200th anniversary: The Liverpool and Manchester Railway (L&M) (depicted), the first...In 1830, The Liverpool and Manchester Railway (L&M) (depicted), the first locomotive-hauled railway to connect two major cities, opened with the Duke of...WikipediaDetails →International Day of DemocracyA United Nations international day.United NationsDetails →Independence Day (Mexico)MexicoA public holiday in Mexico, known locally as Día de la Independencia.Nager.DateDetails →Respect for the Aged Day (Japan)JapanA public holiday in Japan.Nager.DateDetails →International Day for Interventional CardiologyA United Nations international day.United NationsDetails →International Day for the Preservation of the Ozone LayerA United Nations international day.United NationsDetails →International Day of Science, Technology and Innovation for the SouthA United Nations international day.United NationsDetails →50th anniversary: Solidarity, a Polish trade union, was founded as the first independent labor...In 1980, Solidarity, a Polish trade union, was founded as the first independent labor union in an Eastern Bloc country.WikipediaDetails →Narendra Modi, born 1950 (80 years)Indian politician; Chief Minister of Gujarat and 14th Prime Minister of India.WikipediaDetails →World Patient Safety DayA United Nations international day.United NationsDetails →National holiday (Chile)ChileA public holiday in Chile, known locally as Fiestas Patrias.Nager.DateDetails →International Equal Pay DayA United Nations international day.United NationsDetails →Army Day (Chile)ChileA public holiday in Chile, known locally as Día de las Glorias del Ejército.Nager.DateDetails →Last quarter moonThe Moon is half lit (waning).NASA, computedDetails →Autumn HiganThe week of the equinox, when Japanese Buddhists visit and tidy family graves.Wikipedia, computedDetails →World Cleanup DayA United Nations international day.United NationsDetails →International Day of PeaceA United Nations international day.United NationsDetails →Founders Day (Ghana)GhanaA public holiday in Ghana.Nager.DateDetails →Leil SelichotThe first night of Ashkenazi penitential prayers (Selichot) before Rosh Hashanah, late on Saturday night.Hebcal, computedDetails →Nativity of the Theotokos (Julian calendar)The birth of Mary, one of the Twelve Great Feasts. September 8 in the Julian calendar.Orthodox Church in America, computedDetails →Bill Murray, born 1950 (80 years)American actor, comedian, producer, and screenwriter.WikipediaDetails →September equinoxAutumn begins in the Northern Hemisphere, spring in the Southern.US Naval Observatory, computedDetails →MabonAutumn equinox sabbat. Northern Hemisphere dates.Wheel of the Year, computedDetails →250th anniversary: American Revolutionary War: British officer John André was captured by Patriot...In 1780, American Revolutionary War: British officer John André was captured by Patriot forces, thereby revealing a plot by Continental Army general Benedict...WikipediaDetails →Autumnal Equinox Day (Japan)JapanA public holiday in Japan.Nager.DateDetails →International Day of Sign LanguagesA United Nations international day.United NationsDetails →Heritage Day (South Africa)South AfricaA public holiday in South Africa.Nager.DateDetails →Confucius’s Birthday (traditional lunar date)The traditional birthday of Confucius, kept by the Confucian Academy in Hong Kong and in Confucian temples. Day 27 of lunar month 8.Hong Kong Observatory, computedDetails →World Maritime DayA United Nations international day.United NationsDetails →450th anniversary: English explorer Francis Drake's galleon the Golden Hind (replica pictured)...In 1580, English explorer Francis Drake's galleon the Golden Hind (replica pictured) sailed into Plymouth, completing his circumnavigation of the globe.WikipediaDetails →International Day for the Total Elimination of Nuclear WeaponsA United Nations international day.United NationsDetails →Meskel (Finding of the True Cross)Bonfires (Demera) for the finding of the Cross by Empress Helena; UNESCO intangible heritage. The Coptic Feast of the Cross falls on the same day.Ethiopian Orthodox Tewahedo Church, computedDetails →New moonThe Moon is between Earth and the Sun; darkest nights for stargazing.NASA, computedDetails →Meskel (Orthodox) (Ethiopia)EthiopiaA public holiday in Ethiopia.Nager.DateDetails →Elevation of the Holy Cross (Julian calendar)One of the Twelve Great Feasts, a strict fast day. September 14 in the Julian calendar.Orthodox Church in America, computedDetails →Nine Emperor Gods FestivalNine days of Taoist rites and vegetarian fasting in Malaysia, Singapore and Thailand (the Phuket Vegetarian Festival). Day 1 of lunar month 9.Hong Kong Observatory, computedDetails →World Tourism DayA United Nations international day.United NationsDetails →Rosh HashanahThe Jewish New Year. Begins at sundown on Fri, September 27, 2030.Hebcal, computedDetails →Sharad NavaratriNine nights of the goddess Durga; Durga Puja in Bengal. Ashvin, Shukla 1. Regional dates can differ by a day.Wikipedia, computedDetails →St. Wenceslas Day (Czechia)CzechiaA public holiday in Czechia, known locally as Den české státnosti.Nager.DateDetails →Confucius’s Birthday (Teachers’ Day, Taiwan)The Grand Ceremony at Taipei’s Confucius Temple and at Qufu, the birthplace of Confucius.Wikipedia, computedDetails →Days of Awe (Ten Days of Repentance)The ten days from Rosh Hashanah to Yom Kippur. Begins at sundown on Fri, September 27, 2030.Hebcal, computedDetails →National Hunting and Fishing DayCelebrates hunters and anglers and their role in conservation; the fourth Saturday in September.National Hunting and Fishing Day, computedDetails →National Public Lands DayA fee-free day at national parks and other federal lands; the fourth Saturday in September.National Park Service, computedDetails →International Day for Universal Access to InformationA United Nations international day.United NationsDetails →Michaelmas (Saints Michael, Gabriel and Raphael)The feast of the archangels; in England one of the old quarter days.USCCB liturgical year, computedDetails →25th anniversary: John Roberts became the 17th Chief Justice of the United StatesIn 2005, John Roberts became the 17th Chief Justice of the United States; he would be the first Chief Justice to serve for twenty years since Melville Fuller...WikipediaDetails →75th anniversary: The first Indonesian legislative election resulted in an unexpectedly poor...In 1955, The first Indonesian legislative election resulted in an unexpectedly poor result for the Masyumi Party of incumbent prime minister Burhanuddin...WikipediaDetails →International Day of Awareness of Food Loss and WasteA United Nations international day.United NationsDetails →National Day for Truth and Reconciliation (Canada)CanadaA public holiday in Canada.Nager.DateDetails →Fast of GedaliahA minor fast day after Rosh Hashanah. Observed from dawn to nightfall.Hebcal, computedDetails →
| Date | Event | |||
|---|---|---|---|---|
| Coming upJune 2030 | ||||
| Jun 10Monin 3 years | Ordinary Time (after Pentecost)The long second stretch of Ordinary Time, from the day after Pentecost to the Saturday before Advent.Religion · Catholic · to Nov 30 · USCCB liturgical year | – | annual | USCCB liturgical yearComputed (rule) |
| Coming upAugust 2030 | ||||
| Aug 22Thuin 3 years | Minnesota State Fair 2030The Great Minnesota Get-Together: twelve days ending on Labor Day.Culture · Minnesota · to Sep 2 · State Fairgrounds, Falcon Heights · Minnesota State Fair | State Fairgrounds, Falcon Heights | annual | Minnesota State FairComputed (rule) |
| Aug 25Sunin 3 years | Paryushana (Svetambara)TentativeEight days of fasting and reflection, the holiest time of the Jain year, ending on Samvatsari, the day of forgiveness (Michhami Dukkadam). Bhadrapada,...Religion · Jainism · to Sep 1 · Wikipedia | – | annual | WikipediaComputed (rule) |
| Coming upSeptember 2030 | ||||
| Sep 1Sunin 3 years | Ganesh ChaturthiTentativeThe birth of Ganesha; a ten-day festival ending with immersion (Anant Chaturdashi). Bhadrapada, Shukla 4. Regional dates can differ by a day.Religion · Hinduism · to Sep 11 · Wikipedia | – | annual | WikipediaComputed (rule) |
| Orthodox Church New Year (Revised Julian calendar)The Indiction, the start of the church year.Religion · Eastern Orthodox · Orthodox Church in America | – | annual | Orthodox Church in AmericaComputed (rule) | |
| Sep 2Monin 3 years | Labor DayA public holiday in the United States, officially Labor Day.Holidays · United States · United States · Nager.Date | United States | annual | Nager.Date |
| Das Lakshana Parva (Digambara)TentativeTen days on the ten virtues, the Digambara Paryushana, ending on Anant Chaturdashi. Bhadrapada, Shukla 5. Regional dates can differ by a day.Religion · Jainism · to Sep 11 · Wikipedia | – | annual | WikipediaComputed (rule) | |
| Labour Day (Puerto Rico)A public holiday in Puerto Rico, known locally as Día del Trabajo.Holidays · Puerto Rico · Puerto Rico · Nager.Date | Puerto Rico | annual | Nager.Date | |
| National Day (Vietnam)A public holiday in Vietnam, known locally as Quốc khánh.Holidays · Vietnam · Vietnam · Nager.Date | Vietnam | annual | Nager.Date | |
| Sep 4Wedin 3 years | First quarter moonThe Moon is half lit (waxing).Sky · Moon phases · 4:56 pm CT · NASA | – | monthly | NASAComputed (rule) |
| 75th anniversary: A white U.S. soldier raped and murdered a five-year-old local girl in Kadena,...In 1955, A white U.S. soldier raped and murdered a five-year-old local girl in Kadena, Okinawa.History · Anniversaries · Wikipedia | – | annual | Wikipedia | |
| Sep 5Thuin 3 years | 125th anniversary: Under the mediation of U.S. president Theodore Roosevelt, the Russo-Japanese...In 1905, Under the mediation of U.S. president Theodore Roosevelt, the Russo-Japanese War officially ended with the signing of a treaty at the Portsmouth Naval...History · Anniversaries · Wikipedia | – | annual | Wikipedia |
| 25th anniversary: Mandala Airlines Flight 091 crashed shortly after take-off in Indonesia due to...In 2005, Mandala Airlines Flight 091 crashed shortly after take-off in Indonesia due to pilot error, killing 100 out of the 117 people on board along with 49...History · Anniversaries · Wikipedia | – | annual | Wikipedia | |
| International Day of CharityA United Nations international day.Observances · UN international days · United Nations | – | annual | United Nations | |
| International Day of the World’s Indigenous Women and GirlsA United Nations international day.Observances · UN international days · United Nations | – | annual | United Nations | |
| Sep 6Friin 3 years | 100th anniversary: Argentine president Hipólito Yrigoyen was deposed in a military coup by José...In 1930, Argentine president Hipólito Yrigoyen was deposed in a military coup by José Félix Uriburu.History · Anniversaries · Wikipedia | – | annual | Wikipedia |
| Sep 7Satin 3 years | Independence Day (Brazil)A public holiday in Brazil, known locally as Dia da Independência.Holidays · Brazil · Brazil · Nager.Date | Brazil | annual | Nager.Date |
| International Day of Clean Air for Blue SkiesA United Nations international day.Observances · UN international days · United Nations | – | annual | United Nations | |
| International Day of Police CooperationA United Nations international day.Observances · UN international days · United Nations | – | annual | United Nations | |
| World Duchenne Awareness DayA United Nations international day.Observances · UN international days · United Nations | – | annual | United Nations | |
| Sep 8Sunin 3 years | 275th anniversary: French and Indian War: Despite being ambushed at the start of the Battle of...In 1755, French and Indian War: Despite being ambushed at the start of the Battle of Lake George, British colonial troops and their Mohawk allies were able to...History · Anniversaries · Wikipedia | – | annual | Wikipedia |
| International Literacy DayA United Nations international day.Observances · UN international days · United Nations | – | annual | United Nations | |
| Nativity of the Blessed Virgin MaryThe birthday of Mary.Religion · Catholic · USCCB liturgical year | – | annual | USCCB liturgical yearComputed (rule) | |
| Nativity of the Theotokos (Revised Julian calendar)The birth of Mary, one of the Twelve Great Feasts.Religion · Eastern Orthodox · Orthodox Church in America | – | annual | Orthodox Church in AmericaComputed (rule) | |
| National Grandparents DayThe first Sunday after Labor Day.Observances · Days · US Code | – | annual | US CodeComputed (rule) | |
| Sep 9Monin 3 years | Onam (Thiruvonam)TentativeKerala’s harvest festival and the homecoming of King Mahabali: pookalam flower carpets, the Onasadya feast and snake-boat races. Thiruvonam day in the month...Religion · Hinduism · Wikipedia | – | annual | WikipediaComputed (rule) |
| International Day to Protect Education from AttackA United Nations international day.Observances · UN international days · United Nations | – | annual | United Nations | |
| Sep 11Wedin 3 years | Full moon: Harvest MoonTraditional North American name: Harvest Moon. Moon 383,989 km from Earth.Sky · Moon phases · 4:18 pm CT · NASA | – | monthly | NASAComputed (rule) |
| Enkutatash and Nayrouz (Ethiopian and Coptic New Year)Meskerem 1 (Thout 1): the Ethiopian year 2023 and the Coptic year of the Martyrs 1747 begin.Religion · Oriental Orthodox (Coptic, Ethiopian, Armenian) · Ethiopian Orthodox Tewahedo Church | – | annual | Ethiopian Orthodox Tewahedo ChurchComputed (rule) | |
| 250th anniversary: American Revolutionary War: Approximately ten American soldiers were killed by...In 1780, American Revolutionary War: Approximately ten American soldiers were killed by Loyalists and their Native American allies in the Sugarloaf massacre in...History · Anniversaries · Wikipedia | – | annual | Wikipedia | |
| Chuseok (South Korea)A public holiday in South Korea.Holidays · South Korea · South Korea · Nager.Date | South Korea | annual | Nager.Date | |
| Enkutatash (Ethiopia)A public holiday in Ethiopia.Holidays · Ethiopia · Ethiopia · Nager.Date | Ethiopia | annual | Nager.Date | |
| Sep 12Thuin 3 years | Mid-Autumn FestivalMooncakes under the harvest full moon; Chuseok in Korea falls on the same day. Day 15 of lunar month 8.Culture · Lunar calendar festivals · Hong Kong Observatory | – | annual | Hong Kong ObservatoryComputed (rule) |
| Chuseok (South Korea)A public holiday in South Korea.Holidays · South Korea · South Korea · Nager.Date | South Korea | annual | Nager.Date | |
| Mid-Autumn Festival (China)A public holiday in China.Holidays · China · China · Nager.Date | China | annual | Nager.Date | |
| Cao Dai: Festival of the Holy MotherThe feast of the Mother Goddess (Dieu Tri Kim Mau) at Tay Ninh. Day 15 of lunar month 8.Religion · Cao Dai · Hong Kong Observatory | – | annual | Hong Kong ObservatoryComputed (rule) | |
| Gahambar Paitishahem (harvest)The third Gahambar, the grain harvest, in the Fasli calendar.Religion · Zoroastrianism · to Sep 16 · avesta.org Zoroastrian calendars | – | annual | avesta.org Zoroastrian calendarsComputed (rule) | |
| United Nations Day for South-South CooperationA United Nations international day.Observances · UN international days · United Nations | – | annual | United Nations | |
| Sep 13Friin 3 years | Chuseok (South Korea)A public holiday in South Korea.Holidays · South Korea · South Korea · Nager.Date | South Korea | annual | Nager.Date |
| Day following the Mid-Autumn Festival (Hong Kong)A public holiday in Hong Kong.Holidays · Hong Kong · Hong Kong · Nager.Date | Hong Kong | annual | Nager.Date | |
| 25th anniversary: A software bug caused a simulated pandemic in the online video game World of...In 2005, A software bug caused a simulated pandemic in the online video game World of Warcraft, serving as a model for epidemiologists to understand how human...History · Anniversaries · Wikipedia | – | annual | Wikipedia | |
| Sep 14Satin 3 years | Pope Leo XIV, born 1955 (75 years)Pope Leo XIV.People · Birth anniversaries · Wikipedia | – | annual | Wikipedia |
| Elevation of the Holy Cross (Revised Julian calendar)One of the Twelve Great Feasts, a strict fast day.Religion · Eastern Orthodox · Orthodox Church in America | – | annual | Orthodox Church in AmericaComputed (rule) | |
| Exaltation of the Holy CrossHoly Cross Day: honors the cross, from the dedication of the Church of the Holy Sepulchre in 335.Religion · Christianity · USCCB liturgical year | – | annual | USCCB liturgical yearComputed (rule) | |
| Orthodox Church New Year (Julian calendar)The Indiction, the start of the church year. September 1 in the Julian calendar.Religion · Eastern Orthodox · Orthodox Church in America | – | annual | Orthodox Church in AmericaComputed (rule) | |
| Sep 15Sunin 3 years | National Hispanic Heritage MonthNational Hispanic Heritage Month, observed across the US.Observances · Heritage months · to Oct 15 · Library of Congress and partners | – | annual | Library of Congress and partnersComputed (rule) |
| Mercury at greatest western elongationMercury is 17.9° from the Sun, best seen in the morning sky.Sky · Planets · Astronomy Engine | – | recurring | Astronomy EngineComputed (rule) | |
| 200th anniversary: The Liverpool and Manchester Railway (L&M) (depicted), the first...In 1830, The Liverpool and Manchester Railway (L&M) (depicted), the first locomotive-hauled railway to connect two major cities, opened with the Duke of...History · Anniversaries · Wikipedia | – | annual | Wikipedia | |
| International Day of DemocracyA United Nations international day.Observances · UN international days · United Nations | – | annual | United Nations | |
| Sep 16Monin 3 years | Independence Day (Mexico)A public holiday in Mexico, known locally as Día de la Independencia.Holidays · Mexico · Mexico · Nager.Date | Mexico | annual | Nager.Date |
| Respect for the Aged Day (Japan)A public holiday in Japan.Holidays · Japan · Japan · Nager.Date | Japan | annual | Nager.Date | |
| International Day for Interventional CardiologyA United Nations international day.Observances · UN international days · United Nations | – | annual | United Nations | |
| International Day for the Preservation of the Ozone LayerA United Nations international day.Observances · UN international days · United Nations | – | annual | United Nations | |
| International Day of Science, Technology and Innovation for the SouthA United Nations international day.Observances · UN international days · United Nations | – | annual | United Nations | |
| Sep 17Tuein 3 years | 50th anniversary: Solidarity, a Polish trade union, was founded as the first independent labor...In 1980, Solidarity, a Polish trade union, was founded as the first independent labor union in an Eastern Bloc country.History · Anniversaries · Wikipedia | – | annual | Wikipedia |
| Narendra Modi, born 1950 (80 years)Indian politician; Chief Minister of Gujarat and 14th Prime Minister of India.People · Birth anniversaries · Wikipedia | – | annual | Wikipedia | |
| World Patient Safety DayA United Nations international day.Observances · UN international days · United Nations | – | annual | United Nations | |
| Sep 18Wedin 3 years | National holiday (Chile)A public holiday in Chile, known locally as Fiestas Patrias.Holidays · Chile · Chile · Nager.Date | Chile | annual | Nager.Date |
| International Equal Pay DayA United Nations international day.Observances · UN international days · United Nations | – | annual | United Nations | |
| Sep 19Thuin 3 years | Army Day (Chile)A public holiday in Chile, known locally as Día de las Glorias del Ejército.Holidays · Chile · Chile · Nager.Date | Chile | annual | Nager.Date |
| Last quarter moonThe Moon is half lit (waning).Sky · Moon phases · 2:57 pm CT · NASA | – | monthly | NASAComputed (rule) | |
| Sep 20Friin 3 years | Autumn HiganThe week of the equinox, when Japanese Buddhists visit and tidy family graves.Religion · Buddhism · to Sep 26 · Wikipedia | – | annual | WikipediaComputed (rule) |
| World Cleanup DayA United Nations international day.Observances · UN international days · United Nations | – | annual | United Nations | |
| Sep 21Satin 3 years | International Day of PeaceA United Nations international day.Observances · UN international days · United Nations | – | annual | United Nations |
| Founders Day (Ghana)A public holiday in Ghana.Holidays · Ghana · Ghana · Nager.Date | Ghana | annual | Nager.Date | |
| Leil SelichotThe first night of Ashkenazi penitential prayers (Selichot) before Rosh Hashanah, late on Saturday night.Religion · Judaism · Hebcal | – | annual | HebcalComputed (rule) | |
| Nativity of the Theotokos (Julian calendar)The birth of Mary, one of the Twelve Great Feasts. September 8 in the Julian calendar.Religion · Eastern Orthodox · Orthodox Church in America | – | annual | Orthodox Church in AmericaComputed (rule) | |
| Bill Murray, born 1950 (80 years)American actor, comedian, producer, and screenwriter.People · Birth anniversaries · Wikipedia | – | annual | Wikipedia | |
| Sep 22Sunin 3 years | September equinoxAutumn begins in the Northern Hemisphere, spring in the Southern.Sky · Solstices and equinoxes · 6:27 pm CT · US Naval Observatory | – | annual | US Naval ObservatoryComputed (rule) |
| MabonAutumn equinox sabbat. Northern Hemisphere dates.Religion · Pagan and Wiccan · Wheel of the Year | – | annual | Wheel of the YearComputed (rule) | |
| Sep 23Monin 3 years | 250th anniversary: American Revolutionary War: British officer John André was captured by Patriot...In 1780, American Revolutionary War: British officer John André was captured by Patriot forces, thereby revealing a plot by Continental Army general Benedict...History · Anniversaries · Wikipedia | – | annual | Wikipedia |
| Autumnal Equinox Day (Japan)A public holiday in Japan.Holidays · Japan · Japan · Nager.Date | Japan | annual | Nager.Date | |
| International Day of Sign LanguagesA United Nations international day.Observances · UN international days · United Nations | – | annual | United Nations | |
| Sep 24Tuein 3 years | Heritage Day (South Africa)A public holiday in South Africa.Holidays · South Africa · South Africa · Nager.Date | South Africa | annual | Nager.Date |
| Confucius’s Birthday (traditional lunar date)The traditional birthday of Confucius, kept by the Confucian Academy in Hong Kong and in Confucian temples. Day 27 of lunar month 8.Religion · Confucianism · Hong Kong Observatory | – | annual | Hong Kong ObservatoryComputed (rule) | |
| World Maritime DayA United Nations international day.Observances · UN international days · United Nations | – | annual | United Nations | |
| Sep 26Thuin 3 years | 450th anniversary: English explorer Francis Drake's galleon the Golden Hind (replica pictured)...In 1580, English explorer Francis Drake's galleon the Golden Hind (replica pictured) sailed into Plymouth, completing his circumnavigation of the globe.History · Anniversaries · Wikipedia | – | annual | Wikipedia |
| International Day for the Total Elimination of Nuclear WeaponsA United Nations international day.Observances · UN international days · United Nations | – | annual | United Nations | |
| Sep 27Friin 3 years | Meskel (Finding of the True Cross)Bonfires (Demera) for the finding of the Cross by Empress Helena; UNESCO intangible heritage. The Coptic Feast of the Cross falls on the same day.Religion · Oriental Orthodox (Coptic, Ethiopian, Armenian) · Ethiopian Orthodox Tewahedo Church | – | annual | Ethiopian Orthodox Tewahedo ChurchComputed (rule) |
| New moonThe Moon is between Earth and the Sun; darkest nights for stargazing.Sky · Moon phases · 4:55 am CT · NASA | – | monthly | NASAComputed (rule) | |
| Meskel (Orthodox) (Ethiopia)A public holiday in Ethiopia.Holidays · Ethiopia · Ethiopia · Nager.Date | Ethiopia | annual | Nager.Date | |
| Elevation of the Holy Cross (Julian calendar)One of the Twelve Great Feasts, a strict fast day. September 14 in the Julian calendar.Religion · Eastern Orthodox · Orthodox Church in America | – | annual | Orthodox Church in AmericaComputed (rule) | |
| Nine Emperor Gods FestivalNine days of Taoist rites and vegetarian fasting in Malaysia, Singapore and Thailand (the Phuket Vegetarian Festival). Day 1 of lunar month 9.Religion · Taoism and Chinese folk religion · to Oct 5 · Hong Kong Observatory | – | annual | Hong Kong ObservatoryComputed (rule) | |
| World Tourism DayA United Nations international day.Observances · UN international days · United Nations | – | annual | United Nations | |
| Sep 28Satin 3 years | Rosh HashanahThe Jewish New Year. Begins at sundown on Fri, September 27, 2030.Religion · Judaism · to Sep 29 · Hebcal | – | annual | HebcalComputed (rule) |
| Sharad NavaratriTentativeNine nights of the goddess Durga; Durga Puja in Bengal. Ashvin, Shukla 1. Regional dates can differ by a day.Religion · Hinduism · to Oct 6 · Wikipedia | – | annual | WikipediaComputed (rule) | |
| St. Wenceslas Day (Czechia)A public holiday in Czechia, known locally as Den české státnosti.Holidays · Czechia · Czechia · Nager.Date | Czechia | annual | Nager.Date | |
| Confucius’s Birthday (Teachers’ Day, Taiwan)The Grand Ceremony at Taipei’s Confucius Temple and at Qufu, the birthplace of Confucius.Religion · Confucianism · Wikipedia | – | annual | WikipediaComputed (rule) | |
| Days of Awe (Ten Days of Repentance)The ten days from Rosh Hashanah to Yom Kippur. Begins at sundown on Fri, September 27, 2030.Religion · Judaism · to Oct 7 · Hebcal | – | annual | HebcalComputed (rule) | |
| National Hunting and Fishing DayCelebrates hunters and anglers and their role in conservation; the fourth Saturday in September.Outdoors · Parks and public lands · National Hunting and Fishing Day | – | annual | National Hunting and Fishing DayComputed (rule) | |
| National Public Lands DayA fee-free day at national parks and other federal lands; the fourth Saturday in September.Outdoors · Parks and public lands · National Park Service | – | annual | National Park ServiceComputed (rule) | |
| International Day for Universal Access to InformationA United Nations international day.Observances · UN international days · United Nations | – | annual | United Nations | |
| Sep 29Sunin 3 years | Michaelmas (Saints Michael, Gabriel and Raphael)The feast of the archangels; in England one of the old quarter days.Religion · Christianity · USCCB liturgical year | – | annual | USCCB liturgical yearComputed (rule) |
| 25th anniversary: John Roberts became the 17th Chief Justice of the United StatesIn 2005, John Roberts became the 17th Chief Justice of the United States; he would be the first Chief Justice to serve for twenty years since Melville Fuller...History · Anniversaries · Wikipedia | – | annual | Wikipedia | |
| 75th anniversary: The first Indonesian legislative election resulted in an unexpectedly poor...In 1955, The first Indonesian legislative election resulted in an unexpectedly poor result for the Masyumi Party of incumbent prime minister Burhanuddin...History · Anniversaries · Wikipedia | – | annual | Wikipedia | |
| International Day of Awareness of Food Loss and WasteA United Nations international day.Observances · UN international days · United Nations | – | annual | United Nations | |
| Sep 30Monin 3 years | National Day for Truth and Reconciliation (Canada)A public holiday in Canada.Holidays · Canada · Canada · Nager.Date | Canada | annual | Nager.Date |
| Fast of GedaliahA minor fast day after Rosh Hashanah. Observed from dawn to nightfall.Religion · Judaism · Hebcal | – | annual | HebcalComputed (rule) | |