Observance library

Browse all researched observances

2,411 researched observances. Search for a specific name or known alternate name.

Source-backedFixed AnnualIn-depth guide

National Banana Bread Day

23 February · Informal food-calendar usage documented by Association of Nutrition & Foodservice Professionals chapter material

Two ANFP Wyoming chapter calendars list National Banana Bread Day on February 23.

Source-backedFixed AnnualIn-depth guide

National Barber Mental Health Awareness Day

19 May · United States / barber-industry mental-health awareness observance

The National Association of Barbers identifies May 19 as Barber Mental Health Awareness Day and publishes industry-focused mental-health awareness guidance for the date.

Source-backedFixed AnnualIn-depth guide

National Barbershop Music Appreciation Day

13 July · United States / Sweet Adelines International-linked music appreciation observance

National Day Calendar states Sweet Adelines International founded the observance in 2005 for its 60th anniversary, tied to the organization’s July 13, 1945 founding date; a Sweet Adelines r…

Source-backedFixed AnnualIn-depth guide

National Barbershop Quartet Day

11 April · Barbershop Harmony Society / organized barbershop commemoration

The Barbershop Harmony Society says National Barbershop Quartet Day commemorates the birth of the organized barbershop movement on 11 April 1938.

Source-backedFixed AnnualIn-depth guide

National Barcode Day

26 June annually · AIDC / supply-chain industry observance founded by Barcoding, Inc., Datalogic and ScanSource

Barcoding, Inc. says it created National Barcode Day with Datalogic and ScanSource for June 26, commemorating the first retail UPC scan on June 26, 1974.

Source-backedFixed AnnualIn-depth guide

National Bath Bomb Day

25 May · United States / Desert Bath Company-created bath-product observance

National Day Archives records May 25 of each calendar year and identifies Desert Bath Company as the 2021 creator; current calendar coverage preserves the same date.

Source-backedFixed AnnualIn-depth guide

National Be Late for Something Day

5 September · United States / informal lifestyle observance created by the Procrastinators’ Club of America; participation guidance limited to low-stakes situations

National Day Calendar identifies the Procrastinators’ Club of America, founded by Les Waas in 1956, as the body whose committee designated September 5 as Be Late for Something Day; Timeandd…

Source-backedFixed AnnualIn-depth guide

National Bean Counter Day

16 April · United States / informal accounting-profession appreciation observance; informational only, not tax or financial advice

National Day Calendar credits Connecticut CPA Kevin Wenig with founding National Bean Counter Day on April 16; Hartford Business Journal independently identified Wenig as the local accounta…

Source-backedFixed AnnualIn-depth guide

National Bed Bug Prevention Day

10 June · United States / informal bed-bug prevention awareness observance

National Day Archives lists National Bed Bug Prevention Day on June 10 and attributes its 2019 creation to Dodson Pest Control. Dodson currently publishes first-party bed-bug prevention res…

Source-backedFixed AnnualIn-depth guide

National Beef Tallow Day

13 July · United States and Canada / Healthy Fats Coalition-created informal culinary observance; industry/private rather than statutory

The Healthy Fats Coalition announced establishment of National Beef Tallow Day on July 10, 2017, effective July 13, 2018, timed to coincide with National French Fry Day; its current page an…

Source-backedFixed AnnualIn-depth guide

National Beer Day

7 April · United States / brewing-industry observance tied to the Cullen-Harrison Act

The Brewers Association lists National Beer Day on 7 April 2026 and explains that it commemorates the Cullen-Harrison Act taking effect on 7 April 1933.

Source-backedFixed AnnualIn-depth guide

National Best Friends Day

8 June · Informal friendship observance in U.S. consumer and pet-awareness calendars

Hallmark’s 2026 calendar lists National Best Friends Day on June 8, while the Animal Medical Center repeatedly lists Best Friends Day on the same date.

Source-backedRule Based AnnualIn-depth guide

National Bible Day

Last Monday of January (26 January in 2026) · Philippines / statutory National Bible Day and special working holiday; religious participation is not compulsory

Republic Act No. 11163 declares the last Monday of January every year as National Bible Day and a special working holiday throughout the Philippines. Senate legislative records identify Sen…

Source-backedFixed AnnualIn-depth guide

National Biologic Coordinators Day

1 November · United States / recognition campaign for biologic coordinators launched by Janssen

The campaign launch material and day registry identify November 1 as National Biologic Coordinators Day, launched by Janssen in 2021 to recognize biologic coordinators.

Source-backedFixed AnnualIn-depth guide

National Bird Day

5 January annually · Avian Welfare Coalition / captive-bird welfare and education campaign

The Avian Welfare Coalition says it established National Bird Day on January 5 as a day of action and education for captive birds; its anniversary material dates the campaign to 2002.

Source-backedRule Based AnnualIn-depth guide

National Bison Day

first Saturday in November annually; 7 November 2026 · United States / bison recognition observance

NPS says National Bison Day has been observed annually on the first Saturday in November since 2012; WCS documents the Vote Bison Coalition’s inaugural 1 November 2012 celebration. Year-spe…

Source-backedFixed AnnualIn-depth guide

National Black Barber Shop Appreciation Day

1 May · United States / creator-registered Black barber and barber-shop appreciation observance

National Day Archives attributes the May 1 observance to James Jean-Pierre, created in April 2021; University of Georgia Extension independently recognizes the date in community-health educ…

Source-backedRule Based AnnualIn-depth guide

National Black Bear Day

First Saturday in June (6 June in 2026) · United States / National Black Bear Festival education initiative

The National Black Bear Festival states that it secured the National Black Bear Day designation and that the day is celebrated on the first Saturday in June each year.

Source-backedFixed AnnualIn-depth guide

National Black Cat Day

27 October annually · United Kingdom / Cats Protection annual adoption-awareness and animal-welfare campaign

Cats Protection states that National Black Cat Day is held each year on October 27, that it launched the first campaign on 27 October 2011 as Black Cat Awareness Day, and that it renamed th…

Source-backedFixed AnnualIn-depth guide

National Black Dog Day

1 October · United States / Colleen Paige animal-welfare observance

Founder Colleen Paige’s current materials list National Black Dog Day on October 1 and describe it as an annual awareness observance.

Source-backedFixed AnnualIn-depth guide

National Black Forest Cake Day

28 March · Informal food-calendar usage documented by Association of Nutrition & Foodservice Professionals chapter material

ANFP Wyoming and Wisconsin chapter calendars list National Black Forest Cake Day on March 28.

Source-backedFixed AnnualIn-depth guide

National Black HIV/AIDS Awareness Day

7 February annually · United States / Black and African American HIV awareness

NIH states that National Black HIV/AIDS Awareness Day is observed annually on February 7 to increase awareness and mobilize community involvement around HIV among Black/African American peo…

Source-backedFixed AnnualIn-depth guide

National Black Literacy Day

14 February · United States / Semicolon Bookstore-created literacy-awareness observance

National Day Archives states that Semicolon Bookstore created National Black Literacy Day in February 2021 and that it takes place on February 14 each calendar year.

Source-backedFixed AnnualIn-depth guide

National Black Marketers Day

16 November · United States / Black Marketers Coalition-created professional recognition observance

Black Marketers Coalition first-party material announces creation of National Black Marketers Day and annual November 16 observance; the creator registry dates creation to September 2021.

Source-backedFixed AnnualIn-depth guide

National Black Poetry Day

17 October · United States / cultural-literary commemoration honoring Black poetry and Jupiter Hammon

New York legislative and SUNY Plattsburgh records trace Black Poetry Day to Stanley Ransom in 1970, observed on October 17 for Jupiter Hammon’s birthday; later state resolutions recognize t…

Source-backedFixed AnnualIn-depth guide

National Black Women in Jazz and the Arts Day

1 March · United States / arts-recognition observance associated with Black Women in Jazz

Multiple current observance references place the day on March 1 and attribute its establishment to the Black Women in Jazz organization/initiative.

Source-backedFixed AnnualIn-depth guide

National Blueberry Cheesecake Day

26 May · United States / blueberry-industry observance

The U.S. Highbush Blueberry Council repeatedly identifies May 26 as National Blueberry Cheesecake Day in its industry marketing materials.

Source-backedFixed AnnualIn-depth guide

National Blueberry Day

8 July · United States / blueberry-industry observance

The U.S. Highbush Blueberry Council repeatedly identifies July 8 as National Blueberry Day in industry campaign materials.

Source-backedFixed AnnualIn-depth guide

National Blueberry Muffin Day

11 July · United States / blueberry-industry observance

The U.S. Highbush Blueberry Council identifies July 11 as National Blueberry Muffin Day in multiple industry materials.

Source-backedFixed AnnualIn-depth guide

National Blueberry Pancake Day

28 January · United States / blueberry-industry observance

The U.S. Highbush Blueberry Council repeatedly identifies January 28 as National Blueberry Pancake Day and publishes promotional assets for the date.

Source-backedFixed AnnualIn-depth guide

National Blueberry Pie Day

28 April · United States / blueberry-industry observance

The U.S. Highbush Blueberry Council explicitly states that National Blueberry Pie Day is celebrated on April 28 each year and repeats the date in other campaign materials.

Source-backedFixed AnnualIn-depth guide

National Blueberry Popover Day

10 March · Informal food-calendar usage documented by Association of Nutrition & Foodservice Professionals chapter material

ANFP Wyoming and Wisconsin chapter calendars list National Blueberry Popover Day on March 10.

Source-backedFixed AnnualIn-depth guide

National Bobblehead Day

7 January annually · National Bobblehead Hall of Fame and Museum-organized pop-culture observance

The National Bobblehead Hall of Fame and Museum says it developed National Bobblehead Day, submitted it for designation in December 2014, and celebrated the first annual observance on Janua…

Source-backedFixed AnnualIn-depth guide

National Borinqueneers Day

13 April · United States recognition of the 65th Infantry Regiment / Borinqueneers

U.S. Senate Resolution 641 (2020) and subsequent federal recognition

Source-backedFixed AnnualIn-depth guide

National Boss’s Day

16 October · United States / workplace appreciation observance

SHRM and Hallmark trace National Boss Day to Patricia Bays Haroski’s 1958 registration with the U.S. Chamber of Commerce; October 16 was selected for her father’s birthday, with later Illin…

Source-backedEdition SpecificIn-depth guide

National Bowling Day

Latest dated organizer page: Saturday 9 August 2025; 2026 industry materials confirm campaign continuity but not a 2026 date · United States / Go Bowling and bowling-industry National Bowling Day campaign; target-year date remains edition-specific

Go Bowling’s official campaign page documents Saturday, 9 August for the 2025 edition and says the sport has been featured on FOX & Friends for National Bowling Day each year since 2018. US…

Source-backedRule Based AnnualIn-depth guide

National Breadstick Day

Last Friday in October · United States / informal culinary observance

Calendar and institutional event material use the last Friday in October for National Breadstick Day.

Source-backedFixed AnnualIn-depth guide

National Break Up With Your Carrier Day

13 February · United States / T-Mobile-founded private telecom marketing observance; National Day Calendar recurring registry

T-Mobile’s February 11, 2019 launch release and National Day Calendar’s founder proclamation establish February 13, 2019 as the first annual observance, T-Mobile as founder and the pre-Vale…

Source-backedFixed AnnualIn-depth guide

National Brown Dog Day

2 February · United States / Debra Loveless Williams-created dog appreciation observance

National Day Archives attributes National Brown Dog Day to Debra Loveless Williams, created in January 2021, and lists February 2 annually; independent observance coverage corroborates the…

Source-backedFixed AnnualIn-depth guide

National Bubble Tea Day

30 April · United States / Kung Fu Tea-created bubble-tea celebration

Kung Fu Tea states that it founded National Bubble Tea Day on April 30, 2018, its eighth birthday, to celebrate the bubble-tea community; this verifies the modern observance, not invention…

Source-backedFixed AnnualIn-depth guide

National Bulldogs Are Beautiful Day

21 April · United States / informal bulldog-appreciation and acceptance observance; creator-attributed and institutionally recurring rather than statutory

Independent pet/holiday coverage attributes the observance to children’s author Jackie Valent in 2007, while current Truman State University and Drake University materials independently con…

Source-backedRule Based AnnualIn-depth guide

National Bunion Day

Third Tuesday of April (21 April in 2026) · United States / Treace Medical Concepts bunion-awareness campaign; commercial-origin awareness day, not a government/statutory health observance

Treace Medical Concepts announced the first-ever National Bunion Day in the United States on 16 April 2024, states that it founded the observance, and sets it on the third Tuesday of April…

Source-backedFixed AnnualIn-depth guide

National Caesar Salad Day

4 July · United States / informal food observance

National Day Calendar consistently places National Caesar Salad Day on July 4 and explicitly states that it has not identified the observance founder.

Source-backedFixed AnnualIn-depth guide

National California Day

22 February · United States / National Day Calendar National State Days series — California

National Day Calendar places National California Day on February 22 within its creator-defined National State Days series, introduced in 2017 and sequenced by state admission order with cal…

Source-backedRule Based AnnualIn-depth guide

National Call Your Doctor Day

Second Tuesday of June (9 June in 2026) · United States / women’s preventive-health reminder created by Bright Pink and registered through National Day Calendar

National Day Calendar’s proclamation record says Bright Pink founded the observance in 2016 and that the recurring date was moved to the second Tuesday in June beginning in 2017.

Source-backedFixed AnnualIn-depth guide

National Cancer Awareness Day (India)

7 November annually · India / national cancer-awareness campaign

Government of India material states that India observes National Cancer Awareness Day on November 7 each year; the Health Ministry’s 2014 announcement established November 7 for the nationw…

Source-backedFixed AnnualIn-depth guide

National Canine Lymphoma Awareness Day

7 November annually · CLEAR — Canine Lymphoma Education Awareness and Research campaign

CLEAR states that National Canine Lymphoma Awareness Day is observed each year on November 7 and was established in 2015 in honor of Reveille; Cornell veterinary material is used only to bo…

Source-backedFixed AnnualIn-depth guide

National Canoe Day

26 June annually · Canadian canoe heritage and paddling community

The Canadian Canoe Museum identifies 26 June as National Canoe Day and maintains a current 2026 event page.

Source-backedFixed AnnualIn-depth guide

National Care for Kids Day®

20 September · United States / Care for Kids and Designetics Cares-created child-support observance

Designetics says it spearheaded the effort that created National Care for Kids Day for annual September 20 observance; current Care for Kids first-party material says the day was founded in…

Source-backedRule Based AnnualIn-depth guide

National Caregivers Day

Third Friday in February · United States / caregiver recognition; organizer convention corroborated in California legislative analysis

California Assembly Rules Committee analysis describes National Caregivers Day as founded in 2015 and observed annually on the third Friday in February.

Source-backedFixed AnnualIn-depth guide

National Caribbean Civility Day

5 October · Caribbean-focused / World Civility Presidential Club-created humanitarian recognition observance

National Day Archives lists October 5 and attributes the 2020 founding to the World Civility Presidential Club; current observance references corroborate the date, founder attribution and a…

Source-backedFixed AnnualIn-depth guide

National Carrot Cake Day

3 February · Informal food-calendar usage documented by Association of Nutrition & Foodservice Professionals chapter material

Two ANFP Wyoming chapter calendars list National Carrot Cake Day on February 3.

Source-backedRule Based AnnualIn-depth guide

National Cartonnage Day

Third Saturday in September · United States / cartonnage craft community

National Day Archives records Colorway Arts as the creator and states the observance occurs on the third Saturday of September; Colorway Arts documents the original September 18, 2021 event.

Source-backedFixed AnnualIn-depth guide

National Cartoonists Day

5 May · United States / cartoonist-recognition observance associated with the National Cartoonists Society

Industry retrospective evidence supports a National Cartoonists Society initiative first observed May 5, 1999; the Library of Congress independently verifies the May 5, 1895 Hogan’s Alley c…

Source-backedFixed AnnualIn-depth guide

National Cat & Dog Gut Health Awareness Day

21 September · Pet-health awareness / September 21 observance with AnimalBiome 2022 activation and veterinary-calendar recurrence

AnimalBiome documented celebrating Cat & Dog Gut Health Awareness Day on September 21, 2022 while launching its inaugural State of the Gut report. The Animal Medical Center independently li…

Source-backedFixed AnnualIn-depth guide

National Cat Day

29 October · United States-origin / creator-led animal-welfare observance

Founder Colleen Paige’s current holiday list places National Cat Day on October 29; U.S. public institutions also recognize the date in programming and resolutions.

Source-backedFixed AnnualIn-depth guide

National Cat DNA Day

19 September · United States / Basepaws-origin feline-genetics awareness day

National Day Archives records September 19 and identifies Basepaws as the 2020 founder; Basepaws continues to reference National Cat DNA Day in its own materials.

Source-backedFixed AnnualIn-depth guide

National Cat Lady Day

19 April · International / CatCon-created cat-lover celebration

CatCon states that founder Susan Michals created National Cat Lady Day in 2017 and that it takes place each year on April 19.

Source-backedFixed AnnualIn-depth guide

National Catholic Men’s Conference Day

17 October · United States / Catholic men’s conference network initiative

The initiative’s first-party site identifies October 17 as National Catholic Men’s Conference Day and describes its U.S. Catholic men’s conference-network purpose. It is not treated as a Va…

Source-backedFixed AnnualIn-depth guide

National Challenged Champions and Heroes Awareness Day

29 July · United States / Challenged Champions & Heroes disability and caregiver recognition observance

Challenged Champions & Heroes identifies founder Dr. Robin A. Lococo as creator of its July 29 national awareness day. National Day Archives uses the longer National Challenged Champions an…

Source-backedFixed AnnualIn-depth guide

National Check the Chip Day

15 August · United States / veterinary microchip awareness observance

AAHA states that it and AVMA launched Check the Chip Day in 2013; AVMA and AAHA materials identify August 15 as the annual recurrence and focus on current microchip registry contact informa…

Source-backedFixed AnnualIn-depth guide

National Check Your Coverage Day

21 January · United States / Talkspace-created private mental-health-benefits awareness campaign; informational rather than statutory or a guarantee of insurance coverage

Talkspace launched National Check Your Coverage Day for January 21, 2025, states that it founded the day to encourage early-year review of mental-health benefits, and promoted the January 2…

Source-backedFixed AnnualIn-depth guide

National Checklist Day

30 October · United States / informal checklist and aviation-safety-themed observance

FAA Safety Briefing states that National Checklist Day rolls around every October 30 and explains the date through the October 30, 1935 Model 299 crash that prompted formal aviation checkli…

Source-backedFixed AnnualIn-depth guide

National Cheese Curd Day

15 October · United States / Culver’s-created cheese-curd celebration

Culver’s states that it created National Cheese Curd Day in 2015 and celebrates it every October 15.

Source-backedFixed AnnualIn-depth guide

National Cheese Day

4 June · United States / informal recurring food observance; separate Wisconsin gubernatorial edition recognitions

National Day Calendar consistently places National Cheese Day on June 4 and says its origins could not be determined; the U.S. Census Bureau used “National Cheese Day: June 4” in 2023. Wisc…

Source-backedFixed AnnualIn-depth guide

National Cheese Fondue Day

11 April · United States / informal food observance repeatedly promoted by The Melting Pot

The Melting Pot’s first-party 2025 material identifies April 11 as National Cheese Fondue Day, continuing a long-running brand celebration.

Source-backedFixed AnnualIn-depth guide

National Cheese Lover’s Day

20 January · United States / informal cheese-appreciation observance; 2026 Wisconsin state proclamation is an edition-specific acknowledgment, not federal status

Dairy Farmers of Wisconsin identifies January 20 as National Cheese Lover’s Day, and Wisconsin’s governor separately proclaimed Cheese Lover’s Day for January 20, 2026.

Source-backedFixed AnnualIn-depth guide

National Cheese Soufflé Day

18 May · Informal food-calendar usage documented by Association of Nutrition & Foodservice Professionals chapter material

Two Association of Nutrition & Foodservice Professionals chapter calendars list National Cheese Soufflé Day on 18 May.

Source-backedFixed AnnualIn-depth guide

National Cheese Toast Day

15 September · United States / Sizzler-created branded food observance

Sizzler’s own press releases celebrate National Cheese Toast Day on September 15 and identify the chain’s participation in the observance.

Source-backedFixed AnnualIn-depth guide

National Cheesesteak Day

24 March · Philadelphia / U.S. informal food observance with documented community origin, modern institutional recurrence and local civic recognition

Direct interviews with the four originators trace the observance to a March 24, 1994 cheesesteak outing and a 1995 “second annual” National Cheesesteak Thursday letter; Philadelphia Interna…

Source-backedFixed AnnualIn-depth guide

National Cherry Pie Day

22 February · Informal food-calendar usage documented by Association of Nutrition & Foodservice Professionals chapter material

Two Association of Nutrition & Foodservice Professionals chapter calendars list National Cherry Pie Day on 22 February.

Source-backedRule Based AnnualIn-depth guide

National Chess Day

Second Saturday in October; 10 October in 2026 · US Chess / United States chess community

US Chess identifies National Chess Day on the second Saturday in October and traces it to a 1976 Ford-era cultural acknowledgment resulting from Bill Dodgen’s efforts; its Ford Library rese…