Source-backedFixed AnnualIn-depth guide
National Tarantula Appreciation Day
National Day Archives records August 8 each year for National Tarantula Appreciation Day and identifies Palp Friction Tarantulas as the creator in 2019.
Observance library
Browse all researched observances
2,411 researched observances. Search for a specific name or known alternate name.
Source-backedRule Based AnnualIn-depth guide
National Tartar Sauce Day
Frisch’s launch material designated the first Friday of Lent as National Tartar Sauce Day, making the Gregorian date move with Ash Wednesday/Lent.
Source-backedFixed AnnualIn-depth guide
National Tattoo Removal Day
Astanza announced National Tattoo Removal Day for August 14 and identifies itself as an organizer of the observance.
Source-backedFixed AnnualIn-depth guide
National Tea Day
The National Tea Day organizer site publishes the observance on 21 April and lists the 2026 National Tea Day edition for 21 April 2026.
Source-backedRule Based AnnualIn-depth guide
National Teacher Day
NEA traces National Teacher Day to Eleanor Roosevelt’s 1953 advocacy, records congressional recognition in 1980, and says that since 1985 it has celebrated the day on the Tuesday of the fir…
Source-backedFixed AnnualIn-depth guide
National Team Manager Day
Observance references identify FlipGive and National Today as the creators of National Team Manager Day and place the recognition annually on November 6.
Source-backedFixed AnnualIn-depth guide
National Technology Day (India)
India’s Department of Science and Technology identifies 11 May as National Technology Day, commemorated annually following the 1998 technology achievements.
Source-backedFixed AnnualIn-depth guide
National Tennessee Day
National Day Calendar lists the private October 26 National Tennessee Day. The U.S. Senate records June 1, 1796 statehood. Tennessee tourism later recognized the private day in 2022, but th…
Source-backedFixed AnnualIn-depth guide
National Tennis Pro Day
National Day Archives gives February 17 and identifies Maria Oddy as the creator in 2020, with the inaugural observance described for 2021.
Source-backedFixed AnnualIn-depth guide
National Testosterone Awareness Day
National Today places National Testosterone Awareness Day on November 17 annually, while Marius Pharmaceuticals’ 2024 release independently anchored a nonprofit launch to National Testoster…
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-backedRule Based AnnualIn-depth guide
National Thanksgiving Day
Official Liberian government proclamations trace the annual first-Thursday-in-November National Thanksgiving Day national holiday to an Act/statute enacted by the National Legislature in 18…
Source-backedFixed AnnualIn-depth guide
National Therapy Animal Day
Pet Partners states that it created National Therapy Animal Day in 2015 and currently recognizes April 30 with annual participation and local-proclamation resources.
Source-backedFixed AnnualIn-depth guide
National Thermal Engineer Day
Advanced Thermal Solutions sponsors National Thermal Engineer Day, supports a 2015 launch period, currently identifies July 24, and explains the heat-themed date rationale; a conflicting 20…
Source-backedRule Based AnnualIn-depth guide
National Third Shift Workers Day
UFCW national and local materials identify National Third Shift Workers Day on the second Wednesday in May and document union observance activity by at least 2017.
Source-backedRule Based AnnualIn-depth guide
National Tight End Day
NFL material documents the origin and league recognition of National Tight End Day; NFL team material describes it as observed on the fourth Sunday in October.
Source-backedRule Based AnnualIn-depth guide
National Toast Day
Current Tiptree first-party material verifies the last-Thursday-in-February rule and current campaign participation; independent histories trace the observance to the Tiptree World Bread Aw…
Source-backedFixed AnnualIn-depth guide
National Tourism Day
Government of India, Ministry of Tourism / Press Information Bureau
Source-backedRule Based AnnualIn-depth guide
National Trails Day®
American Hiking Society says it conceived National Trails Day in 1991 and launched the first event on 5 June 1993; current organizer material keeps the recurrence on the first Saturday in J…
Source-backedFixed AnnualIn-depth guide
National Travel Insurance Claims Day
Aon Affinity Travel states that its travel practice started National Travel Insurance Claims Day in 2019; USTIA recognizes the recurring May 14 observance. Coverage and claim outcomes remai…
Source-backedFixed AnnualIn-depth guide
National Treat Your Pet Day
Dr. Marty Pets announced the inaugural National Treat Your Pet Day for October 30, 2021 as a new annual holiday; registry/current sources retain October 30.
Source-backedRule Based AnnualIn-depth guide
National Tree Day
Planet Ark says Australia’s National Tree Day began in 1996 and is held on the last Sunday in July; its official materials also document the program’s founding history and locally adaptable…
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-…
Source-backedFixed AnnualIn-depth guide
National Unity Day
Tajikistan’s Ministry of Foreign Affairs commemorated National Unity Day on 27 June 2026 and links the occasion to the 27 June 1997 peace and national accord agreement.
Source-backedFixed AnnualIn-depth guide
National Unity Day (Rashtriya Ekta Diwas)
Government of India / Ministry of Home Affairs announcements establish annual October 31 observance beginning in 2014 on Sardar Vallabhbhai Patel’s birth anniversary; a 2023 Gazette notific…
Source-backedFixed AnnualIn-depth guide
National Unity Day / Day of People’s Unity (Russia)
Federal Laws No. 201-FZ and 200-FZ of December 29, 2004 established the modern November 4 statutory framework effective January 1, 2005; the legal holiday is kept distinct from the 1612 eve…
Source-backedFixed AnnualIn-depth guide
National Upcycling Day
The Upcycled Food Association states that Upcycling Day is celebrated annually on June 24; the U.S. Environmental Protection Agency independently promoted a June 24 webinar in honor of Nati…
Source-backedFixed AnnualIn-depth guide
National Urban Beekeeping Day
Detroit Hives identifies itself as the founder of National Urban Beekeeping Day on 19 July; Detroit public records also cite Michigan House recognition of the date.
Source-backedRule Based AnnualIn-depth guide
National Use Your Gift Card Day
The official campaign identifies Tracy Tilson as founder, January 18, 2020 as the first edition, and the third Saturday of January as the recurring annual date.
Source-backedFixed AnnualIn-depth guide
National Utah Day
National Day Calendar lists the private May 31 National Utah Day. The U.S. Senate records January 4, 1896 statehood. Utah Division of Indian Affairs sources document eight federally recogni…
Source-backedFixed AnnualIn-depth guide
National Vaccination Day (India)
Press Information Bureau, Government of India
Source-backedFixed AnnualIn-depth guide
National Vanilla Pudding Day
Two Association of Nutrition & Foodservice Professionals chapter calendars list National Vanilla Pudding Day on 22 May.
Source-backedFixed AnnualIn-depth guide
National Vegan Lipstick Day
National Day Archives records February 28 as National Vegan Lipstick Day and identifies CakeLipps as the 2020 founder; the date commemorates the founders’ grandmother’s birthday.
Source-backedFixed AnnualIn-depth guide
National Veggie Burger Day
National Day Calendar attributes the observance to Amy’s Kitchen and June 5, while Amy’s own 2017 release calls that year the second annual celebration. The lifecycle conflict is preserved…
Source-backedFixed AnnualIn-depth guide
National Vermont Day
National Day Calendar lists the private October 12 National Vermont Day. The U.S. Senate records March 4, 1791 statehood. Vermont Commission sources document four state-recognized Abenaki t…
Source-backedFixed AnnualIn-depth guide
National Vet Girls ROCK Day
National Day Calendar’s private proclamation record lists February 19 and attributes a 2019 founding to Vet Girls ROCK. No current first-party Vet Girls ROCK/AVWA source was verified, so cr…
Source-backedFixed AnnualIn-depth guide
National Vietnam War Veterans Day
The U.S. Department of Veterans Affairs identifies March 29 as National Vietnam War Veterans Day and describes the national commemoration of Vietnam veterans and their families.
Source-backedFixed AnnualIn-depth guide
National Virginia Day
National Day Calendar documents National Virginia Day on September 14 within its private National State Days series; U.S. Senate records Virginia’s statehood/ratification date as June 25, 1…
Source-backedFixed AnnualIn-depth guide
National Vodka Day
GREY GOOSE first-party material identifies National Vodka Day as October 4 and separately repeats that date in its cocktail FAQ.
Source-backedFixed AnnualIn-depth guide
National Wagyu Day
Steve Haddadin’s official National Wagyu Day site identifies him as founder and June 21 as the date. National Day Calendar records that Haddadin collaborated with it in 2024 to proclaim the…
Source-backedFixed AnnualIn-depth guide
National Waiters and Waitresses Day
Bar & Restaurant identifies May 21 as National Waiters and Waitresses Day in a dedicated 2014 article and in multiple hospitality promotional calendars.
Source-backedHistorical LegacyIn-depth guide
National Waiters Day
Contemporary UK hospitality sources verify a first National Waiters Day on 23 June 2013, originated by Fred Sirieix with Springboard organizing/leading. Later documented editions used 21 Ma…
Source-backedEdition SpecificIn-depth guide
National Walk & Roll to School Day
Official program history says the Partnership for a Walkable America sponsored the first National Walk Our Children to School Day in 1997. The National Center for Safe Routes to School now…
Source-backedFixed AnnualIn-depth guide
National Walk Your Dog Day
Texas Parks and Wildlife explicitly marked February 22 as National Walk Your Dog Day, and the Animal Medical Center’s 2026 awareness calendar corroborates the February 22 dog-walking observ…
Source-backedRule Based AnnualIn-depth guide
National Walking Day
The American Heart Association states that it established National Walking Day in 2007 and celebrates it annually on the first Wednesday in April; current 2026 material confirms continuing…
Source-backedFixed AnnualIn-depth guide
National Washington Day
National Day Calendar lists National Washington Day on May 10 as a private Washington State observance; U.S. Senate records statehood on November 11, 1889, and Washington state sources docu…
Source-backedFixed AnnualIn-depth guide
National Watermelon Day
National Watermelon Promotion Board materials identify August 3 as National Watermelon Day and use it in consumer promotion planning.
Source-backedFixed AnnualIn-depth guide
National Wattle Day
The Australian Government states that 1 September is National Wattle Day and records that the observance was officially proclaimed on 23 June 1992; current 2026 government material continue…
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
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
National Wildlife Day
Creator Colleen Paige’s current site identifies her as founder and lists National Wildlife Day on September 4. Sacramento Zoo corroborates a 2005 founding and separately notes February 22 u…
Source-backedFixed AnnualIn-depth guide
National Windrush Day
The UK government announced on 18 June 2018 that National Windrush Day would take place on 22 June every year; later official material identifies 2019 as the first national Windrush Day, an…
Source-backedFixed AnnualIn-depth guide
National Wine and Cheese Day
Jace Shoemaker-Galloway’s current creator-side Holidailys page describes National Wine and Cheese Day as an annual U.S. holiday created by her. Independent research preserves the earlier cr…
Source-backedFixed AnnualIn-depth guide
National Winter Skin Relief Day
Valeant Consumer Healthcare, then maker of CeraVe Skincare, publicly declared January 8, 2017 as National Winter Skin Relief Day in a January 5, 2017 launch announcement; National Day Calen…
Source-backedFixed AnnualIn-depth guide
National Wisconsin Day
National Day Calendar lists the private National Wisconsin Day on February 15; U.S. Senate records statehood on May 29, 1848. A Wisconsin gubernatorial proclamation dated January 27, 2026 l…
Source-backedFixed AnnualIn-depth guide
National Women and Girls HIV/AIDS Awareness Day
HIV.gov, the HHS Office on Women’s Health and CDC verify March 10 and current federal stewardship. Federal sources disagree on whether the first annual observance was 2005 or 2006, so first…
Source-backedFixed AnnualIn-depth guide
National Women in Aerospace Day
H. Res. 941 was introduced to recognize May 20 as National Women in Aerospace Day, and the Congressional Record documents a May 20, 2026 House recognition statement.
Source-backedFixed AnnualIn-depth guide
National Women Touched by Addiction Day
Mending Hearts states that it created National Women Touched by Addiction Day and that the movement takes place every July 23.
Source-backedRule Based AnnualIn-depth guide
National Women’s Checkup Day
A 2026 New York Senate resolution identifies National Women’s Checkup Day as held annually on the second Monday in May and recognizes May 11, 2026 in conjunction with the observance.
Source-backedFixed AnnualIn-depth guide
National Women’s Day
South Africa’s government lists National Women’s Day on 9 August and applies the statutory next-Monday rule when a public holiday falls on a Sunday; government material also describes the a…
Source-backedFixed AnnualIn-depth guide
National Women’s Fly Fishing Day
National Park Service programming identifies June 27, 2026 as National Women’s Fly Fishing Day; observance references attribute the June 27 annual date to the fly-fishing community initiati…
Source-backedRule Based AnnualIn-depth guide
National Women’s Health & Fitness Day
The official FitnessDay site states that National Women’s Health & Fitness Day is always held on the last Wednesday in September and is organized by the Health Information Resource Center.
Source-backedFixed AnnualIn-depth guide
National Words With Friends Day
Zynga says it founded National Words With Friends Day in 2021 and that the observance is held annually on July 19, the game franchise’s anniversary.
Source-backedFixed AnnualIn-depth guide
National Work From Home for Wellness Day
NexRep states that it established National Work from Home for Wellness Day, celebrates it annually on August 16, and launched the holiday on August 16, 2023. The exact reason for selecting…
Source-backedFixed AnnualIn-depth guide
National Workers’ Comp Adjuster Day
National Day Archives lists August 17 and attributes creation in July 2021 to Centre for Neuro Skills; the creator attribution is not treated as independently verified without a first-party…
Source-backedFixed AnnualIn-depth guide
National Working Moms Day
National Day Calendar states that Susannah Lago of Working Moms of Milwaukee launched National Working Moms Day in 2020 and that its Registrar proclaimed annual March 12 observance on March…
Source-backedFixed AnnualIn-depth guide
National Write Your Story Day
National Day Calendar states that Mitzy founded the observance in 2017 and that the registrar proclaimed annual observance beginning March 14, 2018.
Source-backedFixed AnnualIn-depth guide
National Wyoming Day
National Day Calendar lists the private National Wyoming Day on May 24; U.S. Senate records statehood on July 10, 1890. Wyoming Statutes §8-4-103 separately establishes December 10 as “Wyom…
Source-backedFixed AnnualIn-depth guide
National YogaFit Day
National Day Archives identifies YogaFit Worldwide as founder in 2019 and September 25 as the annual date. Archived 2019 calendar evidence places National YogaFit Day on September 25, and Y…
Source-backedRule Based AnnualIn-depth guide
National Yorkshire Pudding Day (UK)
Contemporaneous January–February 2008 reporting documents the first British Yorkshire Pudding Day on 3 February 2008, while Florence Sandeman’s reproduced first-person explanation identifie…
Source-backedFixed AnnualIn-depth guide
National Youth Confidence Day
Confident Girl Mentoring Program identifies Tiffany R. Lewis as founder and October 20 as the date; National Day Calendar’s creator record adds a 2018 founding year and annual registrar pro…
Source-backedFixed AnnualIn-depth guide
National Youth Day
Government of India sources state that January 12, Swami Vivekananda’s birth anniversary, has been observed as National Youth Day every year since 1985; the Ministry of Youth Affairs and Sp…