Source-backedFixed AnnualIn-depth guide
World AIDS Day
United Nations observance
2025 calendar
December 2025 observances
Observances for December, with source and date details available on each guide.
131listed dates
31days with observances
6+in-depth guides surfaced
Explore the mix
All topics →Topics across December
Curated global anchors
See the collection →Major global guides in December
A reviewed starting point drawn from prominent global observances with strong institutional or organizer sources. Each observance keeps its own documented status and scope.
Source-backedFixed AnnualIn-depth guide
International Day for the Abolition of Slavery
A/RES/317(IV)
Source-backedFixed AnnualIn-depth guide
International Volunteer Day for Economic and Social Development
A/RES/40/212
Source-backedFixed AnnualIn-depth guide
International Civil Aviation Day
A/RES/51/33
Source-backedFixed AnnualIn-depth guide
International Anti-Corruption Day
A/RES/58/4
Source-backedFixed AnnualIn-depth guide
Human Rights Day
A/RES/423 (V)
Source-backedFixed AnnualIn-depth guide
International Mountain Day
A/RES/57/245
Source-backedFixed AnnualIn-depth guide
Arabic Language Day
United Nations language observance
Reviewed depth
Curated collections →More in-depth guides in December
Source-backedFixed AnnualIn-depth guide
Central African Republic national day / Republic Day
The Central African Republic government identifies 1 December 1958 as the date of proclamation of the Republic, and current diplomatic references list 1 December as the national day.
Source-backedFixed AnnualIn-depth guide
Freedom and Democracy Day
Chad’s Prime Minister’s office documented the official 1 December 2025 commemoration of the 35th Freedom and Democracy Day, and current constitutional/journal-official material lists 1 Dece…
Source-backedFixed AnnualIn-depth guide
Indigenous Faith Day
Arunachal Pradesh government holiday calendars list Indigenous Faith Day on 1 December, including the 2024 notification and 2026 state portal calendar.
Source-backedFixed AnnualIn-depth guide
Day of the First President of the Republic of Kazakhstan
Kazakhstan’s 2011 law created December 1 First President’s Day as a state holiday; 2022 legal changes removed it from the non-working holiday law and Government Resolution No. 956 retained…
Source-backedFixed AnnualIn-depth guide
National Peppermint Bark Day
Williams Sonoma’s first-party releases identify December 1 as the annual National Peppermint Bark Day celebration; current observance history also attributes the holiday launch to Williams…
Source-backedFixed AnnualIn-depth guide
Dia da Restauração da Independência
Portugal’s Armed Forces commemorated Dia da Restauração da Independência on 1 December 2025, marking the restoration of national sovereignty in 1640; the Government’s national-holiday regis…
Calendar density
Busiest dates in December 2025
MonDecember 1Date page →
Source-backedFixed AnnualIn-depth guide
Central African Republic national day / Republic Day
The Central African Republic government identifies 1 December 1958 as the date of proclamation of the Republic, and current diplomatic references list 1 December as the national day.
Source-backedFixed AnnualIn-depth guide
Freedom and Democracy Day
Chad’s Prime Minister’s office documented the official 1 December 2025 commemoration of the 35th Freedom and Democracy Day, and current constitutional/journal-official material lists 1 Dece…
Source-backedFixed AnnualIn-depth guide
Indigenous Faith Day
Arunachal Pradesh government holiday calendars list Indigenous Faith Day on 1 December, including the 2024 notification and 2026 state portal calendar.
Source-backedFixed AnnualIn-depth guide
Day of the First President of the Republic of Kazakhstan
Kazakhstan’s 2011 law created December 1 First President’s Day as a state holiday; 2022 legal changes removed it from the non-working holiday law and Government Resolution No. 956 retained…
Source-backedFixed AnnualIn-depth guide
National Peppermint Bark Day
Williams Sonoma’s first-party releases identify December 1 as the annual National Peppermint Bark Day celebration; current observance history also attributes the holiday launch to Williams…
Source-backedFixed AnnualIn-depth guide
Dia da Restauração da Independência
Portugal’s Armed Forces commemorated Dia da Restauração da Independência on 1 December 2025, marking the restoration of national sovereignty in 1640; the Government’s national-holiday regis…
Source-backedFixed AnnualIn-depth guide
Prisoners for Peace Day
War Resisters’ International documents 1 December as Prisoners for Peace Day and traces the observance to 1957; WRI annual reporting independently records the 1 December campaign date.
Source-backedFixed AnnualIn-depth guide
National Day
Romania’s Law No. 10 of 31 July 1990 proclaims 1 December the National Day and repeals the former 23 August national-holiday decision; Romanian government material connects 1 December with…
Source-backedFixed AnnualIn-depth guide
State Inauguration Day
Nagaland government sources identify 1 December 1963 as the formal inauguration of the State of Nagaland and continue to commemorate 1 December as Statehood Day; the State of Nagaland Act,…
Source-backedFixed AnnualIn-depth guide
World AIDS Day
United Nations observance
TueDecember 2Date page →
Source-backedFixed AnnualIn-depth guide
International Day for the Abolition of Slavery
A/RES/317(IV)
Source-backedFixed AnnualIn-depth guide
National Day
Lao News Agency states that National Day is celebrated annually on 2 December and links the date to the proclamation/establishment of the Lao People’s Democratic Republic on 2 December 1975…
Source-backedFixed AnnualIn-depth guide
Special Education Day
The Special Education Day organization identifies December 2 as the observance and says it was launched in 2005 to mark the anniversary of the 1975 federal special-education law.
Source-backedFixed AnnualIn-depth guide
Eid Al Etihad (UAE National Day)
Current UAE government material lists National Day on 2 December and the official holiday period on 2–3 December for public and private sectors. Current official celebration material uses t…
Source-backedFixed AnnualIn-depth guide
World Computer Literacy Day
NIIT first-party history states that it launched World Computer Literacy Day on 2 December to mark its 20th anniversary; NIIT was incorporated on 2 December 1981, placing the launch in 2001…
Source-backedFixed AnnualIn-depth guide
World Futures Day
Proclaimed by UNESCO General Conference in 2021
WedDecember 3Date page →
Source-backedFixed AnnualIn-depth guide
Día de Navarra
Foral Law 18/1985, published in the Spanish Official State Gazette
Source-backedFixed AnnualIn-depth guide
International Day of Persons with Disabilities
A/RES/47/3
ThuDecember 4Date page →
Source-backedFixed AnnualIn-depth guide
International Cheetah Day
Cheetah Conservation Fund (CCF)
Source-backedFixed AnnualIn-depth guide
International Day Against Unilateral Coercive Measures
A/RES/79/293
Source-backedFixed AnnualIn-depth guide
International Day of Banks
A/RES/74/245
Source-backedFixed AnnualIn-depth guide
Navy Day
Government of India Ministry of Defence / Press Information Bureau
FriDecember 5Date page →
Source-backedFixed AnnualIn-depth guide
Bathtub Party Day
The first-party Wellcat Holidays calendar lists Bathtub Party Day on December 5 and identifies the collection as created by Thomas and Ruth Roy; unsupported origin stories and unsafe or pri…
Source-backedRule Based AnnualIn-depth guide
Farmers’ Day (Ghana)
Ghana’s Ministry of the Interior lists Farmers Day among statutory public holidays on the first Friday in December, and its current 2026 holiday calendar places Farmers’ Day on Friday, 4 De…
Source-backedFixed AnnualIn-depth guide
International Volunteer Day for Economic and Social Development
A/RES/40/212
Source-backedFixed AnnualIn-depth guide
National Father’s Day
Thailand’s Government Public Relations Department states that 5 December, the birthday of the late King Bhumibol Adulyadej The Great, is also observed as Thailand’s National Day and Nationa…
Source-backedFixed AnnualIn-depth guide
World Soil Day
A/RES/68/232
SatDecember 6Date page →
Source-backedFixed AnnualIn-depth guide
Independence Day
Finnish Government history ties December 6 to Parliament’s 1917 approval of the independence process and records a 1919 decision to celebrate Independence Day annually on that date; Finlex…
Source-backedFixed AnnualIn-depth guide
Foundation of Quito commemoration
Quito municipal communications document the city’s annual December foundation commemoration and anniversary events
Source-backedRule Based AnnualIn-depth guide
Global Fat Bike Day
Cycling-community sources describe Global Fat Bike Day as a grassroots celebration held on the first Saturday of December; Flatlands Cycling lists 5 December for 2026.
Source-backedFixed AnnualIn-depth guide
National Day of Remembrance and Action on Violence Against Women
Canada’s National Day of Remembrance Act establishes December 6 each year throughout Canada, while current federal material connects the date to remembrance of the 14 women killed at Polyte…
Source-backedFixed AnnualIn-depth guide
National Miners Day
U.S. Department of Labor / Mine Safety and Health Administration; Congress-designated observance
Source-backedRule Based AnnualIn-depth guide
National Patio Day
Stratco and Cancer Council materials establish the 2019 Australian launch and first-Saturday-of-December recurrence; current exclusive stewardship remains unresolved.
Source-backedRule Based AnnualIn-depth guide
SKYWARN Recognition Day
National Weather Service states that SKYWARN Recognition Day was developed in 1999 by the NWS and ARRL, and its archive identifies the first event on 27 November 1999. The normal recurrence…
SunDecember 7Date page →
Source-backedFixed AnnualIn-depth guide
Armed Forces Flag Day
Government of India Ministry of Defence / Press Information Bureau material identifies December 7 as Armed Forces Flag Day, states that it has been observed throughout India since 1949, and…
Source-backedFixed AnnualIn-depth guide
International Civil Aviation Day
A/RES/51/33
Source-backedFixed AnnualIn-depth guide
Memorial Day (Timor-Leste)
Timor-Leste Law No. 3/2016 amended the public-holidays law so 7 December is Memorial/Memory Day, commemorating those who resisted the Indonesian occupation and fought for national liberatio…
Source-backedFixed AnnualIn-depth guide
National Illinois Day
National Day Calendar lists its private National Illinois Day on December 7 within the National State Days series. The U.S. Senate separately records December 3, 1818 statehood, while Illin…
Source-backedFixed AnnualIn-depth guide
National Letter Writing Day
The Smithsonian National Museum of American History identifies December 7 as National Letter Writing Day, and the University of Michigan Clements Library documented the same date in 2009 wh…
Source-backedFixed AnnualIn-depth guide
National Pearl Harbor Remembrance Day
36 U.S.C. §129 designates December 7 as National Pearl Harbor Remembrance Day and requests annual proclamations and half-staff display; historical notes trace the designation to Public Law…
MonDecember 8Date page →
Source-backedFixed AnnualIn-depth guide
Constitution Day
The Government of Uzbekistan identifies 8 December as Constitution Day and states that it is a national public holiday.
Source-backedFixed AnnualIn-depth guide
Solemnity of the Immaculate Conception of the Blessed Virgin Mary
Vatican sources identify December 8 as the Solemnity of the Immaculate Conception, trace medieval devotion, state that Clement XI established the feast for the whole Church in 1708, and pub…
Source-backedFixed AnnualIn-depth guide
Día de la Madre
Panama’s Ministry of Government currently observes Día de las Madres on 8 December. The historical 1930 Law 69 that declared the date a holiday is recorded by Infojurídica as repealed by La…
Source-backedFixed AnnualIn-depth guide
National Lard Day
Healthy Fats Coalition calls National Lard Day its brainchild and repeatedly marks December 8; its own press index links a December 8, 2018 supporter article describing the first annual obs…
Source-backedFixed AnnualIn-depth guide
Saint Clement of Ohrid Day
North Macedonia’s Law on Holidays lists 8 December, St. Clement of Ohrid, among state holidays and provides non-working-day treatment for the state-holiday list. Government tourism material…
Source-backedFixed AnnualIn-depth guide
Día de la Virgen de Caacupé
Paraguayan law, tourism/culture authorities and Catholic institutional sources verify December 8 as the recurring national holiday and major Caacupé Marian pilgrimage festival; current stat…
TueDecember 9Date page →
Source-backedFixed AnnualIn-depth guide
International Day of Commemoration and Dignity of the Victims of the Crime of Genocide and of the Prevention of this Crime
A/RES/69/323
Source-backedFixed AnnualIn-depth guide
International Anti-Corruption Day
A/RES/58/4
Source-backedFixed AnnualIn-depth guide
International Day of Veterinary Medicine
The Animal Medical Center lists International Day of Veterinary Medicine on December 9 across multiple annual veterinary-awareness calendars, including 2024, 2025 and 2026.
Source-backedFixed AnnualIn-depth guide
National Opal Apples Day
A FirstFruits Farms release published on December 8, 2022 identifies December 9, 2022 as the inaugural National Opal Apples Day, and current Opal Apples brand materials continue to maintain…
Source-backedFixed AnnualIn-depth guide
Tanzania Independence Day
Tanzanian official history identifies 9 December 1961 as Tanganyika’s independence date, while the current Public Holidays Act lists 9 December as Independence and Republic Day.
Source-backedFixed AnnualIn-depth guide
V.C. Bird Day / National Heroes Day
The Government of Antigua and Barbuda lists V.C. Bird Day on 9 December; its Government Information Service also identifies 9 December as V.C. Bird Day/National Heroes Day.
WedDecember 10Date page →
Source-backedFixed AnnualIn-depth guide
Constitution Day
Thailand’s Board of Investment official 2026 holiday information lists 10 December 2026 as Constitution Day.
Source-backedFixed AnnualIn-depth guide
Human Rights Day
A/RES/423 (V)
Source-backedFixed AnnualIn-depth guide
International Animal Rights Day
World Animal Protection states that International Animal Rights Day is observed on December 10 every year and is used to advocate for recognition and protection of animals as sentient being…
Source-backedFixed AnnualIn-depth guide
Victory Day
Iraq's Ministry of Higher Education and Scientific Research publishes annual Victory Day messages on December 10 commemorating victory over terrorism/ISIS.
Source-backedFixed AnnualIn-depth guide
Nobel Day
The Nobel Foundation identifies 10 December as Nobel Day, when the Nobel Prize award ceremonies take place in Oslo and Stockholm
ThuDecember 11Date page →
Source-backedFixed AnnualIn-depth guide
Anniversary of the Statute of Westminster
Canadian Heritage states that the anniversary of the Statute of Westminster is celebrated each year on December 11 and describes the associated federal flag protocol.
Source-backedFixed AnnualIn-depth guide
Proclamation of the Republic of Upper Volta / 11 December national-day context
The Presidency of Burkina Faso states that the Republic of Upper Volta was proclaimed on 11 December 1958. Current government sources call 11 December the national celebration and frame it…
Source-backedFixed AnnualIn-depth guide
International Mountain Day
A/RES/57/245
Source-backedFixed AnnualIn-depth guide
UNICEF founding anniversary
UNICEF states that the United Nations established UNICEF on 11 December 1946; the date supports a founding-anniversary page rather than a formal UN “UNICEF Birthday” observance.
FriDecember 12Date page →
Source-backedFixed AnnualIn-depth guide
Feast of Our Lady of Guadalupe
Vatican sources identify 12 December as the feast of Our Lady of Guadalupe.
Source-backedFixed AnnualIn-depth guide
International Day of Neutrality
A/RES/71/275
Source-backedFixed AnnualIn-depth guide
Jamhuri Day
Office of the President of the Republic of Kenya
Source-backedFixed AnnualIn-depth guide
Pa-Togan Nengminza Sangma
Government of Meghalaya
Source-backedFixed AnnualIn-depth guide
International Universal Health Coverage Day
A/RES/72/138
SatDecember 13Date page →
Source-backedFixed AnnualIn-depth guide
Republic Day
Official Malta sources identify 13 December 1974 as the creation of the Republic of Malta and current government holiday guidance lists Republic Day as a National Holiday regulated by Chapt…
Source-backedFixed AnnualIn-depth guide
National Cream Cheese Frosting Day
Arla Foods announced December 13 as the inaugural National Cream Cheese Frosting Day in 2018.
Source-backedFixed AnnualIn-depth guide
National Day of the Horse
The U.S. Senate agreed to S. Res. 452 designating December 13, 2004 as National Day of the Horse; the American Horse Council continues to recognize December 13 as National Day of the Horse.
Source-backedFixed AnnualIn-depth guide
Pick A Pathologist Pal Day
The first-party Wellcat Holidays calendar lists Pick A Pathologist Pal Day on December 13 and identifies the Wellcat Holidays collection as created by Thomas and Ruth Roy. The creator page…
Source-backedFixed AnnualIn-depth guide
National Guard Birthday
The National Guard identifies 13 December as its birthday.
SunDecember 14Date page →
Source-backedFixed AnnualIn-depth guide
International Day against Colonialism in All its Forms and Manifestations
A/RES/80/106
Source-backedFixed AnnualIn-depth guide
Martyred Intellectuals Day
Bangladesh government rules list Martyred Intellectuals Day on December 14 among national days connected with the Liberation War.
Source-backedFixed AnnualIn-depth guide
National Alabama Day
National Day Calendar lists National Alabama Day on 14 December as part of its creator-defined National State Days series, introduced in 2017 to honor states in the order they joined the Un…
Source-backedFixed AnnualIn-depth guide
National Energy Conservation Day
India’s Bureau of Energy Efficiency states that December 14 was declared National Energy Conservation Day and that the annual awards function is organized on December 14 each year.
Source-backedRule Based AnnualIn-depth guide
The Compassionate Friends Worldwide Candle Lighting
The Compassionate Friends; annual remembrance begun in 1997
MonDecember 15Date page →
Source-backedFixed AnnualIn-depth guide
Bill of Rights Day
Public Law 77-243, approved August 21, 1941, requested a presidential proclamation designating December 15, 1941 as Bill of Rights Day for the 150th anniversary of the Bill of Rights. Natio…
Source-backedFixed AnnualIn-depth guide
Cat Herders' Day
Thomas and Ruth Roy’s first-party Wellcat Holidays calendar lists Cat Herders' Day on 15 December and identifies the Wellcat holiday collection as their creation. The creator text frames th…
Source-backedFixed AnnualIn-depth guide
National Wear Your Pearls Day
National Day Calendar states that DeAnna Heard founded the observance, that its registrar approved it in 2015, and that it is observed on 15 December.
Source-backedFixed AnnualIn-depth guide
World Turkic Language Family Day
UNESCO 43 C/57
TueDecember 16Date page →
Source-backedFixed AnnualIn-depth guide
National Day
Bahrain’s official national portal lists National Day on December 16 and separately lists independence from the United Kingdom on August 15, 1971; official cultural material documents the n…
Source-backedFixed AnnualIn-depth guide
Day of Reconciliation
South African Government sources list 16 December as Day of Reconciliation under the Public Holidays Act 36 of 1994. Government history explains that the date had distinct earlier meanings,…
Source-backedFixed AnnualIn-depth guide
Independence Day of Kazakhstan
Kazakhstan’s official government portal states that Independence Day is celebrated annually on 16 December and the 2026 holiday schedule lists Kazakhstan Independence Day on 16 December.
Source-backedFixed AnnualIn-depth guide
Victory Day
Bangladesh’s Armed Forces Division describes December 16 as Victory Day, commemorating the 1971 victory and surrender in Dhaka, and its official observance program treats the day as a publi…
Source-backedFixed AnnualIn-depth guide
Vijay Diwas
Government of India material states that Vijay Diwas is observed every 16 December to commemorate India’s 1971 victory, with current national and military remembrance programming documented…
WedDecember 17Date page →
Source-backedFixed AnnualIn-depth guide
Wright Brothers Day
36 U.S.C. §143 designates December 17 as Wright Brothers Day and states that it commemorates the first successful heavier-than-air mechanically propelled airplane flights by Orville and Wil…
ThuDecember 18Date page →
Source-backedFixed AnnualIn-depth guide
Arabic Language Day
United Nations language observance
Source-backedFixed AnnualIn-depth guide
Guru Ghasidas Jayanti
Chhattisgarh government sources identify 18 December as Guru Ghasidas’s birth anniversary and describe the Jayanti as celebrated every year in the state; the High Court’s 2026 calendar sepa…
Source-backedFixed AnnualIn-depth guide
International Migrants Day
A/RES/55/93
Source-backedFixed AnnualIn-depth guide
National Crime Junkie Day
Crime Junkie’s first-party fifth-anniversary page established National Crime Junkie Day for December 18, 2022 and ties the date to the podcast’s December 18, 2017 debut; a creator-linked cu…
Source-backedFixed AnnualIn-depth guide
National Day
Qatar Law No. 11 of 2007 establishes 18 December—the 1878 power-assumption date of Sheikh Jassim bin Mohamed bin Thani—as the State National Day and makes the annual National Day an officia…
FriDecember 19Date page →
Source-backedFixed AnnualIn-depth guide
Goa Liberation Day
Current Government of Goa material commemorates December 19 as Goa Liberation Day and identifies December 19, 1961 as the historical anniversary of the end of Portuguese rule in Goa and int…
Source-backedFixed AnnualIn-depth guide
International Day of Recognition for Women Searchers of Missing Persons
A/RES/80/L.108
Source-backedRule Based AnnualIn-depth guide
National Underdog Day
Historical reporting directly attributes Underdog Day to P. Moeller of Clio, Michigan; modern observance histories identify 1976 as the first observed year and preserve the third-Friday-in-…
SatDecember 20Date page →
Source-backedFixed AnnualIn-depth guide
International Human Solidarity Day
A/RES/60/209
Source-backedFixed AnnualIn-depth guide
Macao S.A.R. Establishment Day
Macao SAR Government
SunDecember 21Date page →
Source-backedFixed AnnualIn-depth guide
Chester Greenwood Day
Maine law designates 21 December each year as Chester Greenwood Day, directs the governor to issue an annual proclamation, and traces the section to Public Law 1977, chapter 262.
Source-backedFixed AnnualIn-depth guide
National Coquito Day
Don Q Rum announced National Coquito Day as an annual December 21 observance and described the 2018 formalization of the day.
Source-backedFixed AnnualIn-depth guide
National Maine Day
National Day Calendar lists its private National Maine Day on December 21 and describes the National State Days series as beginning in 2017. Maine separately designates March 15 as Statehoo…
Source-backedFixed AnnualIn-depth guide
World Basketball Day
A/RES/77/324
Source-backedFixed AnnualIn-depth guide
World Meditation Day
A/RES/79/137
MonDecember 22Date page →
Source-backedFixed AnnualIn-depth guide
National Mathematics Day (India)
The Government of India announced 22 December, Ramanujan’s birthday, as National Mathematics Day in 2011; a later Press Information Bureau release states that National Mathematics Day is ce…
Source-backedFixed AnnualIn-depth guide
National Cookie Exchange Day
Multiple observance references consistently place National Cookie Exchange Day on December 22.
TueDecember 23Date page →
Source-backedFixed AnnualIn-depth guide
National Farmers’ Day (Kisan Diwas)
ICAR states that Kisan Diwas is observed annually on 23 December and commemorates Chaudhary Charan Singh’s birth anniversary; Press Information Bureau likewise identifies National Farmers D…
Source-backedFixed AnnualIn-depth guide
HumanLight
HumanLight’s official organization identifies 23 December as the holiday and maintains current information about secular humanist celebration.
Source-backedFixed AnnualIn-depth guide
National Farmers’ Day (Kisan Diwas)
Government of India material identifies National Farmers’ Day, also known as Kisan Diwas, on 23 December.
WedDecember 24Date page →
Source-backedFixed AnnualIn-depth guide
International Anti-Cybercrime Day
A/RES/79/243
Source-backedFixed AnnualIn-depth guide
Libya Independence Day
Institutional Libyan legal material lists 24 December Independence Day (1951) under Law No. 5 of 2012, and current state reporting confirms annual government application while historical ev…
Source-backedFixed AnnualIn-depth guide
National Consumer Day
Government of India Press Information Bureau / Department of Consumer Affairs
ThuDecember 25Date page →
Source-backedFixed AnnualIn-depth guide
Solemnity of the Nativity of the Lord (Christmas)
Vatican sources establish the current 25 December Roman Catholic solemnity and identify evidence of celebration by 336 while preserving uncertainty about a single founder or one uncontested…
FriDecember 26Date page →
Source-backedFixed AnnualIn-depth guide
Boxing Day
GOV.UK current bank-holiday calendars list Boxing Day and substitute-day treatment across the UK. The Banking and Financial Dealings Act 1971 provides the statutory December 26 bank-holiday…
Source-backedFixed AnnualIn-depth guide
Day of Goodwill
South African public-holiday framework / government source verification
Source-backedFixed AnnualIn-depth guide
Kwanzaa
The Smithsonian National Museum of African American History and Culture describes Kwanzaa as a week-long African American and Pan-African cultural celebration observed from December 26 to J…
Source-backedFixed AnnualIn-depth guide
National Thank You Note Day
National Day Archives, AnyDayGuide and Hallmark planning material independently place National Thank You Note Day on December 26.
Source-backedFixed AnnualIn-depth guide
National Whiners Day
A December 1995 Washington Post/Newsday report identifies December 26, quotes Rev. Kevin C. Zaborney, and states that he started National Whiner’s Day in 1986; National Day Calendar preserv…
Source-backedFixed AnnualIn-depth guide
Independence and Unity Day
The Government of Slovenia states that Independence and Unity Day is celebrated every year on 26 December, marking the announcement of the 1990 independence plebiscite results.
Source-backedFixed AnnualIn-depth guide
St. Stephen’s Day
Irish statutory sources and current Workplace Relations Commission guidance establish St. Stephen’s Day as a December 26 public holiday while keeping religious tradition distinct from legal…
Source-backedFixed AnnualIn-depth guide
Synaxis of the Most Holy Mother of God
OCA’s saints calendar states that the Synaxis of the Most Holy Mother of God is commemorated on 26 December.
SatDecember 27Date page →
Source-backedFixed AnnualIn-depth guide
Death anniversary of Benazir Bhutto
The December 27 memorial anniversary is anchored to Benazir Bhutto’s death on 27 December 2007; State Bank and contemporaneous reporting document the first anniversary in 2008, while curren…
Source-backedFixed AnnualIn-depth guide
International Day of Epidemic Preparedness
A/RES/75/27
SunDecember 28Date page →
Source-backedFixed AnnualIn-depth guide
The Holy Innocents, Martyrs
The USCCB identifies 28 December as the Feast of the Holy Innocents, Martyrs.
Source-backedFixed AnnualIn-depth guide
National Short Film Day
Film Movement states that it founded National Short Film Day in 2019 and first observed it on December 28, 2019; National Day Calendar records the annual December 28 rule and the Lumière-an…
Source-backedFixed AnnualIn-depth guide
Proclamation Day
South Australia’s current Public Holidays Act 2023 names 26 December as the Proclamation Day holiday, while the History Trust of South Australia documents 28 December 1836 as the first vice…
MonDecember 29Date page →
Source-backedFixed AnnualIn-depth guide
International Cello Day
Akashvani and the Cello Museum identify International Cello Day as a recurring December 29 music-appreciation observance. The Pau Casals Foundation verifies that Pablo/Pau Casals was born o…
Source-backedFixed AnnualIn-depth guide
Independence Day of Mongolia
Mongolia Parliament and Legal Information System sources verify December 29, the 1911 independence-restoration anchor, 2007 annual-celebration legislation and current public-holiday status.
TueDecember 30Date page →
Source-backedFixed AnnualIn-depth guide
Falling Needles Family Fest
Wellcat Holidays lists Falling Needles Family Fest on December 30 and identifies Thomas and Ruth Roy as the creators of the copyrighted holiday collection.
Source-backedFixed AnnualIn-depth guide
National Bacon Day
National Day Calendar attributes December 30 Bacon Day to Danya Goodman and Meff Leonard in 1997; Checkiday traces the same creator account to the former Bacon Day website, while CooksInfo…
Source-backedFixed AnnualIn-depth guide
Rizal Day
December 30 commemorates José Rizal’s death on 30 December 1896. Official historical material records national commemoration in 1898; Act No. 345 of 1902 designated December 30 a public hol…
WedDecember 31Date page →
Source-backedFixed AnnualIn-depth guide
World Azerbaijanis Solidarity Day
Azerbaijan’s official presidential holiday information identifies 31 December as World Azerbaijanis Solidarity Day; current presidential messages use the same name.
Source-backedFixed AnnualIn-depth guide
National Heroes Day
Timor-Leste’s official 2026 holiday list, applying Law No. 10/2005, lists 31 December as National Heroes Day among fixed public holidays.
Source-backedFixed AnnualIn-depth guide
Restauration de la République
The Canton of Geneva’s official holiday calendar lists Restauration de la République on 31 December, including 31 December 2026 and subsequent calendars.