December 2027 calendar
December 2027
Coming upSeptember 2027
Deer Archery season opens (MN)StatewideThe season runs through Dec 31, 2027, statewide.Minnesota DNRDetails →Rabbit, Cottontail & Snowshoe Hare season opens (MN)StatewideThe season runs through Feb 29, 2028, statewide.Minnesota DNRDetails →Rabbit, Jack season opens (MN)StatewideThe season runs through Feb 29, 2028, statewide.Minnesota DNRDetails →Squirrel, Gray & Fox season opens (MN)StatewideThe season runs through Feb 29, 2028, statewide.Minnesota DNRDetails →
Coming upOctober 2027
Badger season opens (MN)North furbearer zoneThe season runs through Mar 15, 2028 (North furbearer zone).Minnesota DNRDetails →Fox, Gray & Red season opens (MN)North furbearer zoneThe season runs through Mar 15, 2028 (Gray & Red, North furbearer zone).Minnesota DNRDetails →Opossum season opens (MN)North furbearer zoneThe season runs through Mar 15, 2028 (North furbearer zone).Minnesota DNRDetails →Raccoon season opens (MN)North furbearer zoneThe season runs through Mar 15, 2028 (North furbearer zone).Minnesota DNRDetails →Badger season opens (MN)South furbearer zoneThe season runs through Mar 15, 2028 (South furbearer zone).Minnesota DNRDetails →Fox, Gray & Red season opens (MN)South furbearer zoneThe season runs through Mar 15, 2028 (Gray & Red, South furbearer zone).Minnesota DNRDetails →Opossum season opens (MN)South furbearer zoneThe season runs through Mar 15, 2028 (South furbearer zone).Minnesota DNRDetails →Raccoon season opens (MN)South furbearer zoneThe season runs through Mar 15, 2028 (South furbearer zone).Minnesota DNRDetails →
Coming upNovember 2027
Nativity Fast (Revised Julian calendar)The forty-day fast before Christmas, November 15 to December 24.Orthodox Church in America, computedDetails →Deer Muzzleloader season opens (MN)StatewideThe season runs through Dec 12, 2027, statewide.Minnesota DNRDetails →AdventThe four weeks of preparation for Christmas, from the First Sunday of Advent to Christmas Eve.USCCB liturgical year, computedDetails →Nativity Fast (Julian calendar)The forty-day fast before Christmas, November 15 to December 24 Julian.Orthodox Church in America, computedDetails →AWS re:Invent 2027Las Vegas, NV · AWSAWS's annual cloud conference, spanning infrastructure, data services, and AI.AWSDetails →
Coming upDecember 2027
World AIDS DayA United Nations international day.United NationsDetails →Chile Personal Data Protection Law (Ley 21.719): Proposed postponement of entry into forceChileGovernment bill Boletin 18623-07 (filed 1 Sep 2026, 'suma' urgency) would replace the 24-month vacatio legis in transitional Art 1 with a fixed date of 1...RegulationsDetails →NeurIPS 2027Location TBA · NeurIPSThe annual conference on neural information processing systems, covering machine learning and computational neuroscience research.NeurIPSDetails →National Day/Great Union (Romania)RomaniaA public holiday in Romania, known locally as Ziua Națională/Marea Unire.Nager.DateDetails →Restoration of Independence (Portugal)PortugalA public holiday in Portugal, known locally as Restauração da Independência.Nager.DateDetails →AWS retires Amazon EKS 1.37AWSAmazon EKS ends support for this runtime.AWSDetails →Metabase retires Metabase 0.64MetabaseMetabase ends support for this runtime.MetabaseDetails →100th anniversary: The Ford Motor Company introduced the second version of the Model A (pictured),...In 1927, The Ford Motor Company introduced the second version of the Model A (pictured), its first new model in 18 years.WikipediaDetails →International Day for the Abolition of SlaveryA United Nations international day.United NationsDetails →EU AI Act: High-risk obligations apply to Annex III systemsEuropean UnionChapter III Sections 1-3 (high-risk requirements and provider/deployer obligations) apply to AI systems classified high-risk under Art 6(2) and Annex III...RegulationsDetails →Martyrdom of Guru Tegh BahadurThe ninth Guru, executed in Delhi in 1675 for defending freedom of religion. Margashirsha, Shukla 5. Regional dates can differ by a day.Wikipedia, computedDetails →100th anniversary: Putting Pants on Philip, the first official film featuring the British-American...In 1927, Putting Pants on Philip, the first official film featuring the British-American comedy duo Laurel and Hardy, was released.WikipediaDetails →International Day of Persons with DisabilitiesA United Nations international day.United NationsDetails →Farmers' Day (Ghana)GhanaA public holiday in Ghana.Nager.DateDetails →Entry of the Theotokos into the Temple (Julian calendar)One of the Twelve Great Feasts. November 21 in the Julian calendar.Orthodox Church in America, computedDetails →International Day Against Unilateral Coercive MeasuresA United Nations international day.United NationsDetails →International Day of BanksA United Nations international day.United NationsDetails →SAT test date (anticipated)US test centersAnticipated SAT Weekend test date for 2027-28; College Board confirms later.College BoardDetails →Confluent retires Apache Flink 2.2ConfluentConfluent Platform ends support for this runtime.ConfluentDetails →2027 Qatar Grand PrixLusail International Circuit, LusailFormula One Qatar Grand Prix race day.WikipediaDetails →Bhumibol Adulyadej, born 1927 (100 years)King of Thailand (died 2016).WikipediaDetails →First quarter moonThe Moon is half lit (waxing).NASA, computedDetails →75th anniversary: The "Great Smog of London" (pictured) began and lasted for five days, causing...In 1952, The "Great Smog of London" (pictured) began and lasted for five days, causing 12,000 deaths and leading to the Clean Air Act 1956.WikipediaDetails →International Volunteer Day for Economic and Social DevelopmentA United Nations international day.United NationsDetails →World Soil DayA United Nations international day.United NationsDetails →Microsoft retires claude-fable-5 (1)MicrosoftMicrosoft Foundry ends support for this model.MicrosoftDetails →Microsoft retires claude-fable-5-1MicrosoftMicrosoft Foundry ends support for this model.MicrosoftDetails →Constitution Day (Spain)SpainA public holiday in Spain, known locally as Día de la Constitución.Nager.DateDetails →Independence Day (Finland)FinlandA public holiday in Finland, known locally as Itsenäisyyspäivä.Nager.DateDetails →Saint Nicholas DayFeast of Saint Nicholas, a gift-giving day in much of Europe.USCCB liturgical year, computedDetails →IT Security Summit Munich 2027Munich, Germany · IndependentA five-day tech conference in Munich, Germany.IndependentDetails →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 →International Civil Aviation DayA United Nations international day.United NationsDetails →250th anniversary: American Revolutionary War: British commander-in-chief Sir William Howe...In 1777, American Revolutionary War: British commander-in-chief Sir William Howe withdrew his troops from the Battle of White Marsh to Philadelphia.WikipediaDetails →Bank of Canada rate announcement, December 8, 2027Bank of Canada, OttawaScheduled interest rate announcement by the Bank of Canada.Bank of CanadaDetails →Feast of the Immaculate Conception of Mary (Philippines)PhilippinesA public holiday in the Philippines, known locally as Kapistahan ng Immaculada Concepcion.Nager.DateDetails →Immaculate Conception (Colombia)ColombiaA public holiday in Colombia, known locally as La Inmaculada Concepción.Nager.DateDetails →Immaculate Conception Day (Argentina)ArgentinaA public holiday in Argentina, known locally as Día de la Inmaculada Concepción de María.Nager.DateDetails →Bodhi DayThe Buddha’s enlightenment, kept on December 8 in Japanese and many Western Mahayana traditions (Rohatsu).Wikipedia, computedDetails →Feast of the Immaculate ConceptionA holy day of obligation for Catholics and the patronal feast of the United States.USCCB liturgical year, computedDetails →Battle of Ayacucho (Peru)PeruA public holiday in Peru, known locally as Batalla de Ayacucho.Nager.DateDetails →Independence Day (Tanzania)TanzaniaA public holiday in Tanzania, known locally as Siku ya Uhuru.Nager.DateDetails →International Anti-Corruption DayA United Nations international day.United NationsDetails →International Day of Commemoration and Dignity of the Victims of the Crime of Genocide and of the Prevention of this CrimeA United Nations international day.United NationsDetails →Human Rights DayA United Nations international day.United NationsDetails →Nobel Prize award ceremonies 2027Stockholm and OsloThe prizes are presented on the anniversary of Alfred Nobel’s death: in Stockholm, and the Peace Prize in Oslo.Nobel Prize, computedDetails →Michael Clarke Duncan, born 1957 (70 years)American actor (died 2012).WikipediaDetails →2027 Army-Navy GameLincoln Financial Field, PhiladelphiaThe annual service academy rivalry game.WikipediaDetails →Birth of Imam AliThe birth of Ali ibn Abi Talib, the first Shia Imam; Father’s Day in Iran. 7/13/1449 AH in the Umm al-Qura calendar. Begins the evening before; the actual...Umm al-Qura calendar, computedDetails →Bobcat season opens (MN)North Furbearer ZoneThe season runs through Jan 16, 2028 (North Furbearer Zone).Minnesota DNRDetails →International Mountain DayA United Nations international day.United NationsDetails →ACT national test date (projected)US test centersProjected national ACT test date for 2027-28.ACTDetails →Cyber Resilience Act: CRA fully appliesEuropean UnionAll remaining obligations, including essential cybersecurity requirements, conformity assessment and CE marking, apply (Art 71(2)). Products placed on the...RegulationsDetails →F1 season finale 2027: Abu Dhabi Grand PrixYas Marina Circuit, Abu DhabiSeason finale: the Abu Dhabi Grand Prix.WikipediaDetails →Our Lady of GuadalupePatroness of the Americas; millions visit the Basilica in Mexico City.USCCB liturgical year, computedDetails →1400th anniversary: At the Battle of Nineveh, the Byzantine army under Emperor Heraclius defeated...In 627, At the Battle of Nineveh, the Byzantine army under Emperor Heraclius defeated the forces of Sasanian emperor Khosrow II, commanded by Rhahzadh, near...WikipediaDetails →International Day of NeutralityA United Nations international day.United NationsDetails →International Universal Health Coverage DayA United Nations international day.United NationsDetails →Full moon: Cold MoonTraditional North American name: Cold Moon. Moon 368,131 km from Earth.NASA, computedDetails →450th anniversary: Francis Drake set sail from Plymouth, England, on his round-the-world voyageIn 1577, Francis Drake set sail from Plymouth, England, on his round-the-world voyage.WikipediaDetails →Jamhuri Day (Kenya)KenyaA public holiday in Kenya.Nager.DateDetails →Jamie Foxx, born 1967 (60 years)American actor, singer, songwriter, producer, and comedian.WikipediaDetails →Geminids meteor shower peakUp to about 150 meteors an hour under a dark sky at the peak (IMO zenithal hourly rate); best after midnight.International Meteor Organization, computedDetails →Reserve Bank of Australia rate decision, December 14, 2027Reserve Bank of Australia, SydneySecond day of the Monetary Policy Board meeting, when the cash rate decision is announced.Reserve Bank of AustraliaDetails →Dilma Rousseff, born 1947 (80 years)Brazilian economist and politician, 36th President of Brazil.WikipediaDetails →International Day against Colonialism in All its Forms and ManifestationsA United Nations international day.United NationsDetails →ECB monetary policy meetingEuropean Central Bank, FrankfurtThe ECB Governing Council sets euro area interest rates; the decision is published on the last day, followed by the press conference.European Central BankDetails →Henri Becquerel, born 1852 (175 years)French physicist and chemist, Nobel Prize laureate (died 1908).WikipediaDetails →World Turkic Language Family DayA United Nations international day.United NationsDetails →Bank of England rate decision, December 16, 2027Bank of England, LondonThe Monetary Policy Committee announces Bank Rate and publishes its summary and minutes.Bank of EnglandDetails →Bank of Japan policy meeting, December 16 to 17, 2027Bank of Japan, TokyoTwo-day Monetary Policy Meeting; the policy decision is announced on the second day.Bank of JapanDetails →Swiss National Bank monetary policy assessment, December 16, 2027Swiss National Bank, ZurichQuarterly monetary policy assessment and rate decision, followed by a news conference.Swiss National BankDetails →Day of Reconciliation (South Africa)South AfricaA public holiday in South Africa.Nager.DateDetails →Victory Day (Bangladesh)BangladeshA public holiday in Bangladesh.Nager.DateDetails →CockroachDB retires CockroachDB 25.2CockroachDBCockroachDB ends support for this runtime.CockroachDBDetails →Arabic Language DayA United Nations international day.United NationsDetails →International Migrants DayA United Nations international day.United NationsDetails →
| Date | Event | |||
|---|---|---|---|---|
| Coming upSeptember 2027 | ||||
| Sep 18Satin 10 months | Deer Archery season opens (MN)The season runs through Dec 31, 2027, statewide.Outdoors · Hunting · to Dec 31 · Statewide · Minnesota DNR | Statewide | annual | Minnesota DNR |
| Rabbit, Cottontail & Snowshoe Hare season opens (MN)The season runs through Feb 29, 2028, statewide.Outdoors · Hunting · to Feb 29 · Statewide · Minnesota DNR | Statewide | annual | Minnesota DNR | |
| Rabbit, Jack season opens (MN)The season runs through Feb 29, 2028, statewide.Outdoors · Hunting · to Feb 29 · Statewide · Minnesota DNR | Statewide | annual | Minnesota DNR | |
| Squirrel, Gray & Fox season opens (MN)The season runs through Feb 29, 2028, statewide.Outdoors · Hunting · to Feb 29 · Statewide · Minnesota DNR | Statewide | annual | Minnesota DNR | |
| Coming upOctober 2027 | ||||
| Oct 16Satin 11 months | Badger season opens (MN)The season runs through Mar 15, 2028 (North furbearer zone).Outdoors · Hunting · to Mar 15 · North furbearer zone · Minnesota DNR | North furbearer zone | annual | Minnesota DNR |
| Fox, Gray & Red season opens (MN)The season runs through Mar 15, 2028 (Gray & Red, North furbearer zone).Outdoors · Hunting · to Mar 15 · North furbearer zone · Minnesota DNR | North furbearer zone | annual | Minnesota DNR | |
| Opossum season opens (MN)The season runs through Mar 15, 2028 (North furbearer zone).Outdoors · Hunting · to Mar 15 · North furbearer zone · Minnesota DNR | North furbearer zone | annual | Minnesota DNR | |
| Raccoon season opens (MN)The season runs through Mar 15, 2028 (North furbearer zone).Outdoors · Hunting · to Mar 15 · North furbearer zone · Minnesota DNR | North furbearer zone | annual | Minnesota DNR | |
| Oct 23Satin 11 months | Badger season opens (MN)The season runs through Mar 15, 2028 (South furbearer zone).Outdoors · Hunting · to Mar 15 · South furbearer zone · Minnesota DNR | South furbearer zone | annual | Minnesota DNR |
| Fox, Gray & Red season opens (MN)The season runs through Mar 15, 2028 (Gray & Red, South furbearer zone).Outdoors · Hunting · to Mar 15 · South furbearer zone · Minnesota DNR | South furbearer zone | annual | Minnesota DNR | |
| Opossum season opens (MN)The season runs through Mar 15, 2028 (South furbearer zone).Outdoors · Hunting · to Mar 15 · South furbearer zone · Minnesota DNR | South furbearer zone | annual | Minnesota DNR | |
| Raccoon season opens (MN)The season runs through Mar 15, 2028 (South furbearer zone).Outdoors · Hunting · to Mar 15 · South furbearer zone · Minnesota DNR | South furbearer zone | annual | Minnesota DNR | |
| Coming upNovember 2027 | ||||
| Nov 15Monin 1 year | Nativity Fast (Revised Julian calendar)The forty-day fast before Christmas, November 15 to December 24.Religion · Eastern Orthodox · to Dec 24 · Orthodox Church in America | – | annual | Orthodox Church in AmericaComputed (rule) |
| Nov 27Satin 1 year | Deer Muzzleloader season opens (MN)The season runs through Dec 12, 2027, statewide.Outdoors · Hunting · to Dec 12 · Statewide · Minnesota DNR | Statewide | annual | Minnesota DNR |
| Nov 28Sunin 1 year | AdventThe four weeks of preparation for Christmas, from the First Sunday of Advent to Christmas Eve.Religion · Catholic · to Dec 24 · USCCB liturgical year | – | annual | USCCB liturgical yearComputed (rule) |
| Nativity Fast (Julian calendar)The forty-day fast before Christmas, November 15 to December 24 Julian.Religion · Eastern Orthodox · to Jan 6 · Orthodox Church in America | – | annual | Orthodox Church in AmericaComputed (rule) | |
| Nov 29Monin 1 year | AWS re:Invent 2027UnverifiedTentativeAWS's annual cloud conference, spanning infrastructure, data services, and AI.Tech · Conferences · to Dec 3 · Las Vegas, NV · AWS | Las Vegas, NV; AWS | annual | AWS |
| Coming upDecember 2027 | ||||
| Dec 1Wedin 1 year | World AIDS DayA United Nations international day.Observances · UN international days · United Nations | – | annual | United Nations |
| Chile Personal Data Protection Law (Ley 21.719): Proposed postponement of entry into forceTentativeGovernment bill Boletin 18623-07 (filed 1 Sep 2026, 'suma' urgency) would replace the 24-month vacatio legis in transitional Art 1 with a fixed date of 1...Tech · Compliance deadlines · Chile · Regulations | Chile | one-off | Regulations | |
| NeurIPS 2027UnverifiedTentativeThe annual conference on neural information processing systems, covering machine learning and computational neuroscience research.Tech · Conferences · Location TBA · NeurIPS | Location TBA; NeurIPS | annual | NeurIPS | |
| National Day/Great Union (Romania)A public holiday in Romania, known locally as Ziua Națională/Marea Unire.Holidays · Romania · Romania · Nager.Date | Romania | annual | Nager.Date | |
| Restoration of Independence (Portugal)A public holiday in Portugal, known locally as Restauração da Independência.Holidays · Portugal · Portugal · Nager.Date | Portugal | annual | Nager.Date | |
| AWS retires Amazon EKS 1.37UnverifiedAmazon EKS ends support for this runtime.Tech · Retirements · AWS · AWS | AWS | one-off | AWS | |
| Metabase retires Metabase 0.64UnverifiedMetabase ends support for this runtime.Tech · Retirements · Metabase · Metabase | Metabase | one-off | Metabase | |
| Dec 2Thuin 1 year | 100th anniversary: The Ford Motor Company introduced the second version of the Model A (pictured),...In 1927, The Ford Motor Company introduced the second version of the Model A (pictured), its first new model in 18 years.History · Anniversaries · Wikipedia | – | annual | Wikipedia |
| International Day for the Abolition of SlaveryA United Nations international day.Observances · UN international days · United Nations | – | annual | United Nations | |
| EU AI Act: High-risk obligations apply to Annex III systemsChapter III Sections 1-3 (high-risk requirements and provider/deployer obligations) apply to AI systems classified high-risk under Art 6(2) and Annex III...Tech · Compliance deadlines · European Union · Regulations | European Union | one-off | Regulations | |
| Dec 3Friin 1 year | Martyrdom of Guru Tegh BahadurTentativeThe ninth Guru, executed in Delhi in 1675 for defending freedom of religion. Margashirsha, Shukla 5. Regional dates can differ by a day.Religion · Sikhism · Wikipedia | – | annual | WikipediaComputed (rule) |
| 100th anniversary: Putting Pants on Philip, the first official film featuring the British-American...In 1927, Putting Pants on Philip, the first official film featuring the British-American comedy duo Laurel and Hardy, was released.History · Anniversaries · Wikipedia | – | annual | Wikipedia | |
| International Day of Persons with DisabilitiesA United Nations international day.Observances · UN international days · United Nations | – | annual | United Nations | |
| Farmers' Day (Ghana)A public holiday in Ghana.Holidays · Ghana · Ghana · Nager.Date | Ghana | annual | Nager.Date | |
| Dec 4Satin 1 year | Entry of the Theotokos into the Temple (Julian calendar)One of the Twelve Great Feasts. November 21 in the Julian calendar.Religion · Eastern Orthodox · Orthodox Church in America | – | annual | Orthodox Church in AmericaComputed (rule) |
| International Day Against Unilateral Coercive MeasuresA United Nations international day.Observances · UN international days · United Nations | – | annual | United Nations | |
| International Day of BanksA United Nations international day.Observances · UN international days · United Nations | – | annual | United Nations | |
| SAT test date (anticipated)Anticipated SAT Weekend test date for 2027-28; College Board confirms later.Academic · Exams · US test centers · College Board | US test centers | annual | College Board | |
| Confluent retires Apache Flink 2.2UnverifiedConfluent Platform ends support for this runtime.Tech · Retirements · Confluent · Confluent | Confluent | one-off | Confluent | |
| Dec 5Sunin 1 year | 2027 Qatar Grand PrixFormula One Qatar Grand Prix race day.Sports · Formula 1 · Lusail International Circuit, Lusail · Wikipedia | Lusail International Circuit, Lusail | annual | Wikipedia |
| Bhumibol Adulyadej, born 1927 (100 years)King of Thailand (died 2016).People · Birth anniversaries · Wikipedia | – | annual | Wikipedia | |
| First quarter moonThe Moon is half lit (waxing).Sky · Moon phases · 11:22 pm CT · NASA | – | monthly | NASAComputed (rule) | |
| 75th anniversary: The "Great Smog of London" (pictured) began and lasted for five days, causing...In 1952, The "Great Smog of London" (pictured) began and lasted for five days, causing 12,000 deaths and leading to the Clean Air Act 1956.History · Anniversaries · Wikipedia | – | annual | Wikipedia | |
| International Volunteer Day for Economic and Social DevelopmentA United Nations international day.Observances · UN international days · United Nations | – | annual | United Nations | |
| World Soil DayA United Nations international day.Observances · UN international days · United Nations | – | annual | United Nations | |
| Microsoft retires claude-fable-5 (1)UnverifiedMicrosoft Foundry ends support for this model.Tech · Retirements · Microsoft · Microsoft | Microsoft | one-off | Microsoft | |
| Microsoft retires claude-fable-5-1UnverifiedMicrosoft Foundry ends support for this model.Tech · Retirements · Microsoft · Microsoft | Microsoft | one-off | Microsoft | |
| Dec 6Monin 1 year | Constitution Day (Spain)A public holiday in Spain, known locally as Día de la Constitución.Holidays · Spain · Spain · Nager.Date | Spain | annual | Nager.Date |
| Independence Day (Finland)A public holiday in Finland, known locally as Itsenäisyyspäivä.Holidays · Finland · Finland · Nager.Date | Finland | annual | Nager.Date | |
| Saint Nicholas DayFeast of Saint Nicholas, a gift-giving day in much of Europe.Religion · Christianity · USCCB liturgical year | – | annual | USCCB liturgical yearComputed (rule) | |
| IT Security Summit Munich 2027A five-day tech conference in Munich, Germany.Tech · Conferences · to Dec 10 · Munich, Germany · Independent | Munich, Germany; Independent | annual | Independent | |
| Dec 7Tuein 1 year | FOMC meetingTentativeThe 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 Dec 8 · Federal Reserve, Washington · Federal Reserve | Federal Reserve, Washington | eight times a year | Federal Reserve |
| International Civil Aviation DayA United Nations international day.Observances · UN international days · United Nations | – | annual | United Nations | |
| Dec 8Wedin 1 year | 250th anniversary: American Revolutionary War: British commander-in-chief Sir William Howe...In 1777, American Revolutionary War: British commander-in-chief Sir William Howe withdrew his troops from the Battle of White Marsh to Philadelphia.History · Anniversaries · Wikipedia | – | annual | Wikipedia |
| Bank of Canada rate announcement, December 8, 2027Scheduled interest rate announcement by the Bank of Canada.Economy · Other central banks · Bank of Canada, Ottawa · Bank of Canada | Bank of Canada, Ottawa | annual | Bank of Canada | |
| Feast of the Immaculate Conception of Mary (Philippines)A public holiday in the Philippines, known locally as Kapistahan ng Immaculada Concepcion.Holidays · Philippines · Philippines · Nager.Date | Philippines | annual | Nager.Date | |
| Immaculate Conception (Colombia)A public holiday in Colombia, known locally as La Inmaculada Concepción.Holidays · Colombia · Colombia · Nager.Date | Colombia | annual | Nager.Date | |
| Immaculate Conception Day (Argentina)A public holiday in Argentina, known locally as Día de la Inmaculada Concepción de María.Holidays · Argentina · Argentina · Nager.Date | Argentina | annual | Nager.Date | |
| Bodhi DayThe Buddha’s enlightenment, kept on December 8 in Japanese and many Western Mahayana traditions (Rohatsu).Religion · Buddhism · Wikipedia | – | annual | WikipediaComputed (rule) | |
| Feast of the Immaculate ConceptionA holy day of obligation for Catholics and the patronal feast of the United States.Religion · Catholic · USCCB liturgical year | – | annual | USCCB liturgical yearComputed (rule) | |
| Dec 9Thuin 1 year | Battle of Ayacucho (Peru)A public holiday in Peru, known locally as Batalla de Ayacucho.Holidays · Peru · Peru · Nager.Date | Peru | annual | Nager.Date |
| Independence Day (Tanzania)A public holiday in Tanzania, known locally as Siku ya Uhuru.Holidays · Tanzania · Tanzania · Nager.Date | Tanzania | annual | Nager.Date | |
| International Anti-Corruption DayA United Nations international day.Observances · UN international days · United Nations | – | annual | United Nations | |
| International Day of Commemoration and Dignity of the Victims of the Crime of Genocide and of the Prevention of this CrimeA United Nations international day.Observances · UN international days · United Nations | – | annual | United Nations | |
| Dec 10Friin 1 year | Human Rights DayA United Nations international day.Observances · UN international days · United Nations | – | annual | United Nations |
| Nobel Prize award ceremonies 2027The prizes are presented on the anniversary of Alfred Nobel’s death: in Stockholm, and the Peace Prize in Oslo.Academic · Nobel Prizes · Stockholm and Oslo · Nobel Prize | Stockholm and Oslo | annual | Nobel PrizeComputed (rule) | |
| Michael Clarke Duncan, born 1957 (70 years)American actor (died 2012).People · Birth anniversaries · Wikipedia | – | annual | Wikipedia | |
| Dec 11Satin 1 year | 2027 Army-Navy GameThe annual service academy rivalry game.Sports · NCAA · Lincoln Financial Field, Philadelphia · Wikipedia | Lincoln Financial Field, Philadelphia | annual | Wikipedia |
| Birth of Imam AliTentativeThe birth of Ali ibn Abi Talib, the first Shia Imam; Father’s Day in Iran. 7/13/1449 AH in the Umm al-Qura calendar. Begins the evening before; the actual...Religion · Shia Islam · Umm al-Qura calendar | – | annual | Umm al-Qura calendarComputed (rule) | |
| Bobcat season opens (MN)The season runs through Jan 16, 2028 (North Furbearer Zone).Outdoors · Hunting · to Jan 16 · North Furbearer Zone · Minnesota DNR | North Furbearer Zone | annual | Minnesota DNR | |
| International Mountain DayA United Nations international day.Observances · UN international days · United Nations | – | annual | United Nations | |
| ACT national test date (projected)TentativeProjected national ACT test date for 2027-28.Academic · Exams · US test centers · ACT | US test centers | annual | ACT | |
| Cyber Resilience Act: CRA fully appliesAll remaining obligations, including essential cybersecurity requirements, conformity assessment and CE marking, apply (Art 71(2)). Products placed on the...Tech · Compliance deadlines · European Union · Regulations | European Union | one-off | Regulations | |
| Dec 12Sunin 1 year | F1 season finale 2027: Abu Dhabi Grand PrixSeason finale: the Abu Dhabi Grand Prix.Sports · Formula 1 · Yas Marina Circuit, Abu Dhabi · Wikipedia | Yas Marina Circuit, Abu Dhabi | annual | Wikipedia |
| Our Lady of GuadalupePatroness of the Americas; millions visit the Basilica in Mexico City.Religion · Catholic · USCCB liturgical year | – | annual | USCCB liturgical yearComputed (rule) | |
| 1400th anniversary: At the Battle of Nineveh, the Byzantine army under Emperor Heraclius defeated...In 627, At the Battle of Nineveh, the Byzantine army under Emperor Heraclius defeated the forces of Sasanian emperor Khosrow II, commanded by Rhahzadh, near...History · Anniversaries · Wikipedia | – | annual | Wikipedia | |
| International Day of NeutralityA United Nations international day.Observances · UN international days · United Nations | – | annual | United Nations | |
| International Universal Health Coverage DayA United Nations international day.Observances · UN international days · United Nations | – | annual | United Nations | |
| Dec 13Monin 1 year | Full moon: Cold MoonTraditional North American name: Cold Moon. Moon 368,131 km from Earth.Sky · Moon phases · 10:09 am CT · NASA | – | monthly | NASAComputed (rule) |
| 450th anniversary: Francis Drake set sail from Plymouth, England, on his round-the-world voyageIn 1577, Francis Drake set sail from Plymouth, England, on his round-the-world voyage.History · Anniversaries · Wikipedia | – | annual | Wikipedia | |
| Jamhuri Day (Kenya)A public holiday in Kenya.Holidays · Kenya · Kenya · Nager.Date | Kenya | annual | Nager.Date | |
| Jamie Foxx, born 1967 (60 years)American actor, singer, songwriter, producer, and comedian.People · Birth anniversaries · Wikipedia | – | annual | Wikipedia | |
| Dec 14Tuein 1 year | Geminids meteor shower peakUp to about 150 meteors an hour under a dark sky at the peak (IMO zenithal hourly rate); best after midnight.Sky · Meteor showers · International Meteor Organization | – | annual | International Meteor OrganizationComputed (rule) |
| Reserve Bank of Australia rate decision, December 14, 2027Second day of the Monetary Policy Board meeting, when the cash rate decision is announced.Economy · Other central banks · Reserve Bank of Australia, Sydney · Reserve Bank of Australia | Reserve Bank of Australia, Sydney | annual | Reserve Bank of Australia | |
| Dilma Rousseff, born 1947 (80 years)Brazilian economist and politician, 36th President of Brazil.People · Birth anniversaries · Wikipedia | – | annual | Wikipedia | |
| International Day against Colonialism in All its Forms and ManifestationsA United Nations international day.Observances · UN international days · United Nations | – | annual | United Nations | |
| Dec 15Wedin 1 year | ECB monetary policy meetingThe ECB Governing Council sets euro area interest rates; the decision is published on the last day, followed by the press conference.Economy · Other central banks · 2:15 pm GMT+1 · to Dec 16 · European Central Bank, Frankfurt · European Central Bank | European Central Bank, Frankfurt | eight times a year | European Central Bank |
| Henri Becquerel, born 1852 (175 years)French physicist and chemist, Nobel Prize laureate (died 1908).People · Birth anniversaries · Wikipedia | – | annual | Wikipedia | |
| World Turkic Language Family DayA United Nations international day.Observances · UN international days · United Nations | – | annual | United Nations | |
| Dec 16Thuin 1 year | Bank of England rate decision, December 16, 2027The Monetary Policy Committee announces Bank Rate and publishes its summary and minutes.Economy · Other central banks · Bank of England, London · Bank of England | Bank of England, London | annual | Bank of England |
| Bank of Japan policy meeting, December 16 to 17, 2027Two-day Monetary Policy Meeting; the policy decision is announced on the second day.Economy · Other central banks · Bank of Japan, Tokyo · Bank of Japan | Bank of Japan, Tokyo | annual | Bank of Japan | |
| Swiss National Bank monetary policy assessment, December 16, 2027Quarterly monetary policy assessment and rate decision, followed by a news conference.Economy · Other central banks · Swiss National Bank, Zurich · Swiss National Bank | Swiss National Bank, Zurich | annual | Swiss National Bank | |
| Day of Reconciliation (South Africa)A public holiday in South Africa.Holidays · South Africa · South Africa · Nager.Date | South Africa | annual | Nager.Date | |
| Victory Day (Bangladesh)A public holiday in Bangladesh.Holidays · Bangladesh · Bangladesh · Nager.Date | Bangladesh | annual | Nager.Date | |
| Dec 17Friin 1 year | CockroachDB retires CockroachDB 25.2UnverifiedCockroachDB ends support for this runtime.Tech · Retirements · CockroachDB · CockroachDB | CockroachDB | one-off | CockroachDB |
| Dec 18Satin 1 year | Arabic Language DayA United Nations international day.Observances · UN international days · United Nations | – | annual | United Nations |
| International Migrants DayA United Nations international day.Observances · UN international days · United Nations | – | annual | United Nations | |