September 2024 calendar
September 2024
PastNovember 2024
PastOctober 2024
Vassa (Buddhist Rains Retreat)The three-month rains retreat of Theravada monks, from Khao Phansa, the day after Asalha Puja, to Ok Phansa.Bank of Thailand holiday calendarDetails →National Hispanic Heritage MonthNational Hispanic Heritage Month, observed across the US.Library of Congress and partners, computedDetails →GOTO Copenhagen 2024Copenhagen, Denmark · IndependentA five-day tech conference in Copenhagen, Denmark.IndependentDetails →Dev2Next 2024Denver, CO · IndependentA four-day tech conference in Denver, CO.IndependentDetails →PGConf NYC 2024New York, NY · IndependentA three-day tech conference in New York, NY.IndependentDetails →Ray Summit 2024San Francisco, SF Bay Area, CA · IndependentA three-day tech conference in San Francisco, SF Bay Area, CA.IndependentDetails →
PastSeptember 2024
National Day for Truth and Reconciliation (Canada)CanadaA public holiday in Canada.Nager.DateDetails →Monica Bellucci, born 1964 (60 years)Italian actress and fashion model.WikipediaDetails →Truman Capote, born 1924 (100 years)American novelist, playwright, and screenwriter (died 1984).WikipediaDetails →International Translation DayA United Nations international day.United NationsDetails →betterCode() ArchDoc 2024Online · IndependentA tech conference, held online.IndependentDetails →GovAI Summit 2024Arlington, Washington DC, VA · IndependentA three-day tech conference in Arlington, Washington DC, VA.IndependentDetails →UN General Assembly general debate 2024UN Headquarters, New YorkWorld leaders address the UN General Assembly.WikipediaDetails →300th anniversary: J. S. Bach led the first performance of Herr Gott, dich loben alle wir, BWV...In 1724, J. S. Bach led the first performance of Herr Gott, dich loben alle wir, BWV 130, based on Paul Eber's hymn in twelve stanzas, for the feast of...WikipediaDetails →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 →Michaelmas (Saints Michael, Gabriel and Raphael)The feast of the archangels; in England one of the old quarter days.USCCB liturgical year, computedDetails →2024 Berlin MarathonBerlinOne of the six World Marathon Majors.WikipediaDetails →International Day of Awareness of Food Loss and WasteA United Nations international day.United NationsDetails →100th anniversary: A team of U.S. Army Air Service aviators landed in Seattle, Washington, to...In 1924, A team of U.S. Army Air Service aviators landed in Seattle, Washington, to complete the first aerial circumnavigation of the world.WikipediaDetails →Brigitte Bardot, born 1934 (90 years)French actress and animal rights activist (died 2025).WikipediaDetails →Confucius, born -551 (2575 years)Chinese teacher, editor, politician, and philosopher of the Spring and Autumn period of Chinese history. (died 479 BC).WikipediaDetails →Meskel (Orthodox) (Ethiopia)EthiopiaA public holiday in Ethiopia.Nager.DateDetails →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 →Leil SelichotThe first night of Ashkenazi penitential prayers (Selichot) before Rosh Hashanah, late on Saturday night.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 →Marcello Mastroianni, born 1924 (100 years)Italian-French actor and singer (died 1996).WikipediaDetails →International Day for Universal Access to InformationA United Nations international day.United NationsDetails →California AB 2013 (AI training data transparency): AB 2013 signedCaliforniaAB 2013 chaptered (ch. 817).RegulationsDetails →iterate=>RUHR 2024Essen, Germany · IndependentA two-day tech conference in Essen, Germany.IndependentDetails →Paris Web 2024Paris, France · IndependentA three-day tech conference in Paris, France.IndependentDetails →Nerdearla 2024Buenos Aires, Argentina · IndependentA five-day tech conference in Buenos Aires, Argentina.IndependentDetails →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 →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 →75th anniversary: Members of the Chinese People's Political Consultative Conference unanimously...In 1949, Members of the Chinese People's Political Consultative Conference unanimously selected Zeng Liansong's design for the flag of China (pictured).WikipediaDetails →Wilford Brimley, born 1934 (90 years)American actor (died 2020).WikipediaDetails →World Tourism DayA United Nations international day.United NationsDetails →Devopsdays London 2024London, United Kingdom · IndependentA two-day tech conference in London, United Kingdom.IndependentDetails →InfoQ Dev Summit Munich 2024Munich, Germany · IndependentA two-day tech conference in Munich, Germany.IndependentDetails →DjangoCon US 2024Durham, NC · IndependentA six-day tech conference in Durham, NC.IndependentDetails →Ivan Pavlov, born 1849 (175 years)Russian physiologist and physician, Nobel Prize laureate (died 1936).WikipediaDetails →International Day for the Total Elimination of Nuclear WeaponsA United Nations international day.United NationsDetails →
Accenture earnings (Q4 FY2024)Accenture (ACN)Accenture reported Q4 FY2024 results before the market opened.EarningsDetails →Conf42 Kube Native 2024Online · IndependentA tech conference, held online.IndependentDetails →Michael Douglas, born 1944 (80 years)American actor and producer.WikipediaDetails →Pedro Almodóvar, born 1949 (75 years)Spanish director, producer, and screenwriter.WikipediaDetails →
Micron earnings (Q4 FY2024)Micron (MU)Micron reported Q4 FY2024 results after the market closed.EarningsDetails →Devopsdays Cairo 2024Cairo, Egypt · IndependentA tech conference in Cairo, Egypt.IndependentDetails →Autumn HiganThe week of the equinox, when Japanese Buddhists visit and tidy family graves.Wikipedia, computedDetails →Heritage Day (South Africa)South AfricaA public holiday in South Africa.Nager.DateDetails →Last quarter moonThe Moon is half lit (waning).NASA, computedDetails →World Maritime DayA United Nations international day.United NationsDetails →
Progress Software earnings (Q3 FY2024)Progress Software (PRGS)Progress Software reported Q3 FY2024 results after the market closed.EarningsDetails →APAC Data 2030 SummitSingapore · IndependentA tech conference in Singapore.IndependentDetails →hayaData 2024Tel Aviv, Israel · IndependentA tech conference in Tel Aviv, Israel.IndependentDetails →TechHeads Conference 2024Kalmar, Sweden · IndependentA tech conference in Kalmar, Sweden.IndependentDetails →BSides Edmonton 2024Edmonton, Canada · IndependentA two-day tech conference in Edmonton, Canada.IndependentDetails →Bruce Springsteen, born 1949 (75 years)American singer-songwriter and guitarist.WikipediaDetails →International Day of Sign LanguagesA United Nations international day.United NationsDetails →PyCon India 2024Bengaluru, India · IndependentA four-day tech conference in Bengaluru, India.IndependentDetails →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 →Autumnal Equinox Day (Japan)JapanA public holiday in Japan.Nager.DateDetails →Quebec Law 25: Phase 3: data portabilityQuebec, CanadaRight to data portability in a structured, commonly used technological format applies.RegulationsDetails →Pycon Latam 2024Mazatlán, Mexico · IndependentA four-day tech conference in Mazatlán, Mexico.IndependentDetails →The Matrix Conference 2024Berlin, Germany · IndependentA four-day tech conference in Berlin, Germany.IndependentDetails →Shinzo Abe, born 1954 (70 years)Japanese lawyer and politician, 90th Prime Minister of Japan (died 2022).WikipediaDetails →International Day of PeaceA United Nations international day.United NationsDetails →Founders Day (Ghana)GhanaA public holiday in Ghana.Nager.DateDetails →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 →2024 Sri Lankan presidential electionSri LankaPresidential election.WikipediaDetails →25th anniversary: A 7.7 Mw earthquake struck Jiji, TaiwanIn 1999, A 7.7 Mw earthquake struck Jiji, Taiwan, killing 2,415 people, injuring more than 11,000 others and causing about NT$300 billion (US$10 billion) in...WikipediaDetails →25th anniversary: The first chapter of Naruto, later one of the best-selling manga series, was...In 1999, The first chapter of Naruto, later one of the best-selling manga series, was published.WikipediaDetails →Leonard Cohen, born 1934 (90 years)Canadian singer-songwriter and poet (died 2016).WikipediaDetails →PyBay 2024San Francisco, SF Bay Area, CA · IndependentA tech conference in San Francisco, SF Bay Area, CA.IndependentDetails →JoomlaDay DACH 2024Hamburg, Germany · IndependentA two-day tech conference in Hamburg, Germany.IndependentDetails →Neptune at oppositionNeptune is opposite the Sun: up all night and at its brightest for the year.Astronomy Engine, computedDetails →Sophia Loren, born 1934 (90 years)Italian actress.WikipediaDetails →World Cleanup DayA United Nations international day.United NationsDetails →California SB 976 addictive feeds: Signed by GovernorCaliforniaChaptered as Chapter 321, Statutes of 2024.RegulationsDetails →Fluttercon USA 2024New York, NY · IndependentA two-day tech conference in New York, NY.IndependentDetails →SREday London 2024London, United Kingdom · IndependentA two-day tech conference in London, United Kingdom.IndependentDetails →Linux Plumbers Conference 2024Vienna, Austria · IndependentA three-day tech conference in Vienna, Austria.IndependentDetails →Army Day (Chile)ChileA public holiday in Chile, known locally as Día de las Glorias del Ejército.Nager.DateDetails →California AI Transparency Act (SB 942): SB 942 signedCaliforniaSB 942 chaptered (ch. 291) with an original operative date of January 1, 2026.RegulationsDetails →DevOpsDays Tampa Bay 2024Tampa, FL · IndependentA tech conference in Tampa, FL.IndependentDetails →Silicon Labs 'Works With' San Jose 2024San Jose, SF Bay Area, CA · IndependentA tech conference in San Jose, SF Bay Area, CA.IndependentDetails →SOSS Community Day Europe 2024Vienna, Austria · IndependentA tech conference in Vienna, Austria.IndependentDetails →Big Data London 2024London, United Kingdom · IndependentA two-day tech conference in London, United Kingdom.IndependentDetails →data2day 2024Heidelberg, Germany · IndependentA two-day tech conference in Heidelberg, Germany.IndependentDetails →Pytorch 2024San Francisco, SF Bay Area, CA · IndependentA two-day tech conference in San Francisco, SF Bay Area, CA.IndependentDetails →1700th anniversary: Constantine the Great decisively defeated Licinius in the Battle of...In 324, Constantine the Great decisively defeated Licinius in the Battle of Chrysopolis, establishing Constantine's sole control over the Roman Empire and...WikipediaDetails →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 →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 →FOMC meetingFederal Reserve, WashingtonThe Federal Open Market Committee sets US interest rates; the statement comes at 2:00 pm ET on the last day, with the Summary of Economic Projections.Federal ReserveDetails →Open Source Summit Europe 2024Vienna, Austria · IndependentA three-day tech conference in Vienna, Austria.IndependentDetails →
| Date | Event | |||
|---|---|---|---|---|
| PastNovember 2024 | ||||
| May 20Mon1 year ago | 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) |
| PastOctober 2024 | ||||
| Jul 21Sun2 years ago | Vassa (Buddhist Rains Retreat)The three-month rains retreat of Theravada monks, from Khao Phansa, the day after Asalha Puja, to Ok Phansa.Religion · Buddhism · to Oct 17 · Bank of Thailand holiday calendar | – | annual | Bank of Thailand holiday calendar |
| Sep 15Sun2 years ago | 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) |
| Sep 30Mon2 years ago | GOTO Copenhagen 2024A five-day tech conference in Copenhagen, Denmark.Tech · Conferences · to Oct 4 · Copenhagen, Denmark · Independent | Copenhagen, Denmark; Independent | annual | Independent |
| Dev2Next 2024A four-day tech conference in Denver, CO.Tech · Conferences · to Oct 3 · Denver, CO · Independent | Denver, CO; Independent | annual | Independent | |
| PGConf NYC 2024A three-day tech conference in New York, NY.Tech · Conferences · to Oct 2 · New York, NY · Independent | New York, NY; Independent | annual | Independent | |
| Ray Summit 2024A three-day tech conference in San Francisco, SF Bay Area, CA.Tech · Conferences · to Oct 2 · San Francisco, SF Bay Area, CA · Independent | San Francisco, SF Bay Area, CA; Independent | annual | Independent | |
| PastSeptember 2024 | ||||
| Sep 30Mon2 years ago | National Day for Truth and Reconciliation (Canada)A public holiday in Canada.Holidays · Canada · Canada · Nager.Date | Canada | annual | Nager.Date |
| Monica Bellucci, born 1964 (60 years)Italian actress and fashion model.People · Birth anniversaries · Wikipedia | – | annual | Wikipedia | |
| Truman Capote, born 1924 (100 years)American novelist, playwright, and screenwriter (died 1984).People · Birth anniversaries · Wikipedia | – | annual | Wikipedia | |
| International Translation DayA United Nations international day.Observances · UN international days · United Nations | – | annual | United Nations | |
| betterCode() ArchDoc 2024A tech conference, held online.Tech · Conferences · Online · Independent | Online; Independent | annual | Independent | |
| Sep 28Sat2 years ago | GovAI Summit 2024A three-day tech conference in Arlington, Washington DC, VA.Tech · Conferences · to Sep 30 · Arlington, Washington DC, VA · Independent | Arlington, Washington DC, VA; Independent | annual | Independent |
| Sep 24Tue2 years ago | UN General Assembly general debate 2024World leaders address the UN General Assembly.Politics · Summits · to Sep 30 · UN Headquarters, New York · Wikipedia | UN Headquarters, New York | annual | Wikipedia |
| Sep 29Sun2 years ago | 300th anniversary: J. S. Bach led the first performance of Herr Gott, dich loben alle wir, BWV...In 1724, J. S. Bach led the first performance of Herr Gott, dich loben alle wir, BWV 130, based on Paul Eber's hymn in twelve stanzas, for the feast of...History · Anniversaries · Wikipedia | – | annual | Wikipedia |
| 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) | |
| 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) | |
| 2024 Berlin MarathonOne of the six World Marathon Majors.Sports · Marathons and athletics · Berlin · Wikipedia | Berlin | 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 28Sat2 years ago | 100th anniversary: A team of U.S. Army Air Service aviators landed in Seattle, Washington, to...In 1924, A team of U.S. Army Air Service aviators landed in Seattle, Washington, to complete the first aerial circumnavigation of the world.History · Anniversaries · Wikipedia | – | annual | Wikipedia |
| Brigitte Bardot, born 1934 (90 years)French actress and animal rights activist (died 2025).People · Birth anniversaries · Wikipedia | – | annual | Wikipedia | |
| Confucius, born -551 (2575 years)Chinese teacher, editor, politician, and philosopher of the Spring and Autumn period of Chinese history. (died 479 BC).People · Birth anniversaries · Wikipedia | – | annual | Wikipedia | |
| Meskel (Orthodox) (Ethiopia)A public holiday in Ethiopia.Holidays · Ethiopia · Ethiopia · Nager.Date | Ethiopia | annual | Nager.Date | |
| 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) | |
| Leil SelichotThe first night of Ashkenazi penitential prayers (Selichot) before Rosh Hashanah, late on Saturday night.Religion · Judaism · 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) | |
| Marcello Mastroianni, born 1924 (100 years)Italian-French actor and singer (died 1996).People · Birth anniversaries · Wikipedia | – | annual | Wikipedia | |
| International Day for Universal Access to InformationA United Nations international day.Observances · UN international days · United Nations | – | annual | United Nations | |
| California AB 2013 (AI training data transparency): AB 2013 signedAB 2013 chaptered (ch. 817).Tech · Compliance deadlines · California · Regulations | California | one-off | Regulations | |
| Sep 27Fri2 years ago | iterate=>RUHR 2024A two-day tech conference in Essen, Germany.Tech · Conferences · to Sep 28 · Essen, Germany · Independent | Essen, Germany; Independent | annual | Independent |
| Sep 26Thu2 years ago | Paris Web 2024A three-day tech conference in Paris, France.Tech · Conferences · to Sep 28 · Paris, France · Independent | Paris, France; Independent | annual | Independent |
| Sep 24Tue2 years ago | Nerdearla 2024A five-day tech conference in Buenos Aires, Argentina.Tech · Conferences · to Sep 28 · Buenos Aires, Argentina · Independent | Buenos Aires, Argentina; Independent | annual | Independent |
| Sep 27Fri2 years ago | 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) |
| 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) | |
| 75th anniversary: Members of the Chinese People's Political Consultative Conference unanimously...In 1949, Members of the Chinese People's Political Consultative Conference unanimously selected Zeng Liansong's design for the flag of China (pictured).History · Anniversaries · Wikipedia | – | annual | Wikipedia | |
| Wilford Brimley, born 1934 (90 years)American actor (died 2020).People · Birth anniversaries · Wikipedia | – | annual | Wikipedia | |
| World Tourism DayA United Nations international day.Observances · UN international days · United Nations | – | annual | United Nations | |
| Sep 26Thu2 years ago | Devopsdays London 2024A two-day tech conference in London, United Kingdom.Tech · Conferences · to Sep 27 · London, United Kingdom · Independent | London, United Kingdom; Independent | annual | Independent |
| InfoQ Dev Summit Munich 2024A two-day tech conference in Munich, Germany.Tech · Conferences · to Sep 27 · Munich, Germany · Independent | Munich, Germany; Independent | annual | Independent | |
| Sep 22Sun2 years ago | DjangoCon US 2024A six-day tech conference in Durham, NC.Tech · Conferences · to Sep 27 · Durham, NC · Independent | Durham, NC; Independent | annual | Independent |
| Sep 26Thu2 years ago | Ivan Pavlov, born 1849 (175 years)Russian physiologist and physician, Nobel Prize laureate (died 1936).People · Birth 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 | |
| Accenture earnings (Q4 FY2024)Accenture reported Q4 FY2024 results before the market opened.Economy · Earnings · Accenture (ACN) · Earnings | Accenture (ACN) | quarterly | Earnings | |
| Conf42 Kube Native 2024A tech conference, held online.Tech · Conferences · Online · Independent | Online; Independent | annual | Independent | |
| Sep 25Wed2 years ago | Michael Douglas, born 1944 (80 years)American actor and producer.People · Birth anniversaries · Wikipedia | – | annual | Wikipedia |
| Pedro Almodóvar, born 1949 (75 years)Spanish director, producer, and screenwriter.People · Birth anniversaries · Wikipedia | – | annual | Wikipedia | |
| Micron earnings (Q4 FY2024)Micron reported Q4 FY2024 results after the market closed.Economy · Earnings · Micron (MU) · Earnings | Micron (MU) | quarterly | Earnings | |
| Devopsdays Cairo 2024A tech conference in Cairo, Egypt.Tech · Conferences · Cairo, Egypt · Independent | Cairo, Egypt; Independent | annual | Independent | |
| Sep 19Thu2 years ago | Autumn HiganThe week of the equinox, when Japanese Buddhists visit and tidy family graves.Religion · Buddhism · to Sep 25 · Wikipedia | – | annual | WikipediaComputed (rule) |
| Sep 24Tue2 years ago | Heritage Day (South Africa)A public holiday in South Africa.Holidays · South Africa · South Africa · Nager.Date | South Africa | annual | Nager.Date |
| Last quarter moonThe Moon is half lit (waning).Sky · Moon phases · 1:50 pm CT · NASA | – | monthly | NASAComputed (rule) | |
| World Maritime DayA United Nations international day.Observances · UN international days · United Nations | – | annual | United Nations | |
| Progress Software earnings (Q3 FY2024)Progress Software reported Q3 FY2024 results after the market closed.Economy · Earnings · Progress Software (PRGS) · Earnings | Progress Software (PRGS) | quarterly | Earnings | |
| APAC Data 2030 SummitA tech conference in Singapore.Tech · Conferences · Singapore · Independent | Singapore; Independent | annual | Independent | |
| hayaData 2024A tech conference in Tel Aviv, Israel.Tech · Conferences · Tel Aviv, Israel · Independent | Tel Aviv, Israel; Independent | annual | Independent | |
| TechHeads Conference 2024A tech conference in Kalmar, Sweden.Tech · Conferences · Kalmar, Sweden · Independent | Kalmar, Sweden; Independent | annual | Independent | |
| Sep 23Mon2 years ago | BSides Edmonton 2024A two-day tech conference in Edmonton, Canada.Tech · Conferences · to Sep 24 · Edmonton, Canada · Independent | Edmonton, Canada; Independent | annual | Independent |
| Bruce Springsteen, born 1949 (75 years)American singer-songwriter and guitarist.People · Birth anniversaries · Wikipedia | – | annual | Wikipedia | |
| International Day of Sign LanguagesA United Nations international day.Observances · UN international days · United Nations | – | annual | United Nations | |
| Sep 20Fri2 years ago | PyCon India 2024A four-day tech conference in Bengaluru, India.Tech · Conferences · to Sep 23 · Bengaluru, India · Independent | Bengaluru, India; Independent | annual | Independent |
| Sep 22Sun2 years ago | September equinoxAutumn begins in the Northern Hemisphere, spring in the Southern.Sky · Solstices and equinoxes · 7:43 am 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) | |
| Autumnal Equinox Day (Japan)A public holiday in Japan.Holidays · Japan · Japan · Nager.Date | Japan | annual | Nager.Date | |
| Quebec Law 25: Phase 3: data portabilityRight to data portability in a structured, commonly used technological format applies.Tech · Compliance deadlines · Quebec, Canada · Regulations | Quebec, Canada | one-off | Regulations | |
| Sep 19Thu2 years ago | Pycon Latam 2024A four-day tech conference in Mazatlán, Mexico.Tech · Conferences · to Sep 22 · Mazatlán, Mexico · Independent | Mazatlán, Mexico; Independent | annual | Independent |
| The Matrix Conference 2024A four-day tech conference in Berlin, Germany.Tech · Conferences · to Sep 22 · Berlin, Germany · Independent | Berlin, Germany; Independent | annual | Independent | |
| Sep 21Sat2 years ago | Shinzo Abe, born 1954 (70 years)Japanese lawyer and politician, 90th Prime Minister of Japan (died 2022).People · Birth anniversaries · Wikipedia | – | annual | Wikipedia |
| 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 | |
| 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) | |
| 2024 Sri Lankan presidential electionPresidential election.Politics · Elections worldwide · Sri Lanka · Wikipedia | Sri Lanka | every few years | Wikipedia | |
| 25th anniversary: A 7.7 Mw earthquake struck Jiji, TaiwanIn 1999, A 7.7 Mw earthquake struck Jiji, Taiwan, killing 2,415 people, injuring more than 11,000 others and causing about NT$300 billion (US$10 billion) in...History · Anniversaries · Wikipedia | – | annual | Wikipedia | |
| 25th anniversary: The first chapter of Naruto, later one of the best-selling manga series, was...In 1999, The first chapter of Naruto, later one of the best-selling manga series, was published.History · Anniversaries · Wikipedia | – | annual | Wikipedia | |
| Leonard Cohen, born 1934 (90 years)Canadian singer-songwriter and poet (died 2016).People · Birth anniversaries · Wikipedia | – | annual | Wikipedia | |
| PyBay 2024A tech conference in San Francisco, SF Bay Area, CA.Tech · Conferences · San Francisco, SF Bay Area, CA · Independent | San Francisco, SF Bay Area, CA; Independent | annual | Independent | |
| Sep 20Fri2 years ago | JoomlaDay DACH 2024A two-day tech conference in Hamburg, Germany.Tech · Conferences · to Sep 21 · Hamburg, Germany · Independent | Hamburg, Germany; Independent | annual | Independent |
| Neptune at oppositionNeptune is opposite the Sun: up all night and at its brightest for the year.Sky · Planets · Astronomy Engine | – | about yearly | Astronomy EngineComputed (rule) | |
| Sophia Loren, born 1934 (90 years)Italian actress.People · Birth anniversaries · Wikipedia | – | annual | Wikipedia | |
| World Cleanup DayA United Nations international day.Observances · UN international days · United Nations | – | annual | United Nations | |
| California SB 976 addictive feeds: Signed by GovernorChaptered as Chapter 321, Statutes of 2024.Tech · Compliance deadlines · California · Regulations | California | one-off | Regulations | |
| Sep 19Thu2 years ago | Fluttercon USA 2024A two-day tech conference in New York, NY.Tech · Conferences · to Sep 20 · New York, NY · Independent | New York, NY; Independent | annual | Independent |
| SREday London 2024A two-day tech conference in London, United Kingdom.Tech · Conferences · to Sep 20 · London, United Kingdom · Independent | London, United Kingdom; Independent | annual | Independent | |
| Sep 18Wed2 years ago | Linux Plumbers Conference 2024A three-day tech conference in Vienna, Austria.Tech · Conferences · to Sep 20 · Vienna, Austria · Independent | Vienna, Austria; Independent | annual | Independent |
| Sep 19Thu2 years ago | 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 |
| California AI Transparency Act (SB 942): SB 942 signedSB 942 chaptered (ch. 291) with an original operative date of January 1, 2026.Tech · Compliance deadlines · California · Regulations | California | one-off | Regulations | |
| DevOpsDays Tampa Bay 2024A tech conference in Tampa, FL.Tech · Conferences · Tampa, FL · Independent | Tampa, FL; Independent | annual | Independent | |
| Silicon Labs 'Works With' San Jose 2024A tech conference in San Jose, SF Bay Area, CA.Tech · Conferences · San Jose, SF Bay Area, CA · Independent | San Jose, SF Bay Area, CA; Independent | annual | Independent | |
| SOSS Community Day Europe 2024A tech conference in Vienna, Austria.Tech · Conferences · Vienna, Austria · Independent | Vienna, Austria; Independent | annual | Independent | |
| Sep 18Wed2 years ago | Big Data London 2024A two-day tech conference in London, United Kingdom.Tech · Conferences · to Sep 19 · London, United Kingdom · Independent | London, United Kingdom; Independent | annual | Independent |
| data2day 2024A two-day tech conference in Heidelberg, Germany.Tech · Conferences · to Sep 19 · Heidelberg, Germany · Independent | Heidelberg, Germany; Independent | annual | Independent | |
| Pytorch 2024A two-day tech conference in San Francisco, SF Bay Area, CA.Tech · Conferences · to Sep 19 · San Francisco, SF Bay Area, CA · Independent | San Francisco, SF Bay Area, CA; Independent | annual | Independent | |
| 1700th anniversary: Constantine the Great decisively defeated Licinius in the Battle of...In 324, Constantine the Great decisively defeated Licinius in the Battle of Chrysopolis, establishing Constantine's sole control over the Roman Empire and...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 | |
| 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 | |
| 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 17Tue2 years ago | FOMC meetingThe Federal Open Market Committee sets US interest rates; the statement comes at 2:00 pm ET on the last day, with the Summary of Economic Projections.Economy · Federal Reserve · 1:00 pm ET · to Sep 18 · Federal Reserve, Washington · Federal Reserve | Federal Reserve, Washington | eight times a year | Federal Reserve |
| Sep 16Mon2 years ago | Open Source Summit Europe 2024A three-day tech conference in Vienna, Austria.Tech · Conferences · to Sep 18 · Vienna, Austria · Independent | Vienna, Austria; Independent | annual | Independent |