Arts Entertainment Lifestyle observances

Floral Design Day

28 February · United States / floral-design arts observance originating in Massachusetts

Smithsonian Libraries documents Floral Design Day on February 28, created around floral educator Carl Rittner’s birthday and enacted by a 1995 Massachusetts gubernatorial proclamation.

Foursquare Day (4SQDay)

16 April · Foursquare user/Superuser community / brand-community observance

Foursquare’s own material describes 4SQDay as an annual community holiday centered on April 16, with community events sometimes scheduled around that date.

Free Comic Book Day

2 May 2026; first Saturday in May · Comic-book retail / official Free Comic Book Day campaign

The official Free Comic Book Day site states that the 2026 event is Saturday, 2 May and describes it as taking place on the first Saturday in May.

French Language Day

20 March · United Nations / international observance

United Nations language observance

Friday before the AFL Grand Final

25 September 2026 · Victorian public holiday; date varies with the AFL Grand Final

Business Victoria

Fête de la musique

21 June; 21 June 2026 · France Ministry of Culture / international cultural event

France’s Ministry of Culture identifies the Fête de la musique on 21 June, says it was launched by the ministry in 1982, and describes it as celebrated in France and around the world.

Geek Pride Day

25 May · Spain-origin / international geek-culture observance

Spanish press coverage documents May 25 as Día del Orgullo Friki/Geek Pride Day and traces the organized Spanish observance to 2006.

Geelong Cup Day

Mid-to-late October; current date must be rechecked · Greater Geelong, Victoria, Australia

City of Greater Geelong identifies Geelong Cup Day as its local substituted public-holiday/free-parking day and distinguishes it from Melbourne Cup Day

GIS Day

18 November 2026 · Global / GIS Day first-party event

The official GIS Day site identifies 18 November 2026 as GIS Day and describes it as a global celebration for sharing, teaching and inspiring others with geographic information systems.

Glastonbury Festival

No festival in 2026; next scheduled 23–27 June 2027 · Worthy Farm, UK / Glastonbury Festival current schedule

Glastonbury Festival’s official information page states that there is no festival in 2026 because it is a fallow year and gives the next festival dates as 23–27 June 2027.

Global Beatles Day

25 June annually · Global Beatles fandom / Apple Corps-recognized fan initiative

The Beatles’ official site states that Global Beatles Day is celebrated annually on 25 June and that Apple Corps formally recognized the fan-led initiative in 2026.

Global Fat Bike Day

First Saturday of December · International / grassroots fat-bike cycling community

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.

Global Movie Day

Second Saturday of February annually · Global / Academy of Motion Picture Arts and Sciences initiative

The Academy states that Global Movie Day takes place on the second Saturday of February every year.

Globally Organized Hug A Runner Day (G.O.H.A.R.D.)

20 November · Run The Edge / international runner-community campaign

Run The Edge describes the event it created as Globally Organized Hug A Runner Day (G.O.H.A.R.D.) and identifies 20 November as the recurring date.

Go Skateboarding Day

21 June · International / skateboarding participation day promoted by the International Association of Skateboard Companies (IASC)

IASC press releases describe Go Skateboarding Day as the official annual holiday of skateboarding, observed worldwide on June 21.

Go to an Art Museum Day

9 November · International / informal arts-and-museum observance

AnydayGuide places Go to an Art Museum Day on November 9, and EventGuide independently lists the naming variant “Go to an Art Museum Today Day” in its November calendar.

Gold Cup Parade

Current annual date must be rechecked · Charlottetown, Prince Edward Island, Canada

The Gold Cup Parade’s official organizer site is the primary source for the event and current programme

Guinness World Records Day

Annual Guinness World Records event; 20 November in the 2025 edition · Guinness World Records / international record-breaking community

Guinness World Records identifies GWR Day as an annual celebration first held in 2004 and publishes the date for each edition

Harbin International Ice and Snow Festival

5 January opening date · Harbin, Heilongjiang, China / international municipal ice-and-snow festival

Chinese government sources document successive Harbin International Ice and Snow Festival openings on January 5, including the 40th edition in 2024, 41st in 2025 and 42nd in 2026.

Harlem Globetrotters first-road-game anniversary

7 January · Harlem Globetrotters / anniversary of the team’s first road game in 1927

The Harlem Globetrotters’ official FAQ dates the team’s first road game to 7 January 1927. This verifies a reusable anniversary anchor, not an official team-created holiday called “Harlem G…

Harry Potter Book Day

8 October 2026 · Bloomsbury / global publisher-led event

Bloomsbury’s official Harry Potter Book Day page identifies Thursday 8 October 2026 as the current event date.

Have a Heart Day

14 February annually; organizer events may be held on nearby dates · First Nations Child & Family Caring Society child-rights and equity campaign in Canada

The First Nations Child & Family Caring Society states that Have a Heart Day has been marked each year on 14 February since 2012 to support equitable opportunities for First Nations childre…

Hina Matsuri / Doll’s Festival / Girls’ Day

3 March annually · Japan / traditional cultural observance

The Japan National Tourism Organization describes the third day of the third month as the annual Hina Matsuri or Doll’s Festival/Girls’ Day celebration in Japan.

Hobbit Day

22 September annually in American Tolkien Society practice · Tolkien literary-fandom observance

The American Tolkien Society identifies 22 September as Hobbit Day, connecting the date to the birthdays of Bilbo and Frodo Baggins and documenting the society’s observance tradition.

I Love Yarn Day

Second Saturday in October; 10 October in 2026 · Craft Yarn Council fibre-arts celebration

The Craft Yarn Council current page gives 10 October 2026 and says the celebration is held annually on the second Saturday in October.

IBM PC unveiling anniversary

12 August anniversary of the 1981 IBM PC unveiling · Technology-history anniversary connected to IBM’s original Personal Computer

IBM’s own history states that the IBM PC was unveiled on 12 August 1981 at New York’s Waldorf Hotel.

Independent Bookstore Day

25 April 2026; last Saturday in April · United States / American Booksellers Association event

The American Booksellers Association identifies 25 April 2026 as Independent Bookstore Day and describes the event as a national one-day celebration held on the last Saturday in April.

Indianapolis 500

24 May 2026 · Indianapolis, Indiana, United States

INDYCAR’s official schedule documents the 110th Indianapolis 500 and its 2026 race date

Insurance Nerd Day

18 July · Insurance industry / informal professional appreciation observance

Pioneer State Mutual’s own Insurance Nerd Day article says people in the industry talk about the observance every year on July 18 and describes its purpose as showcasing insurance careers.

International Animation Day

28 October · Organizer-backed worldwide cultural observance

ASIFA — International Animated Film Association

International Artist Day

25 October · International / founder-led artist recognition initiative

The International Artist Day site identifies October 25 as the observance date and says founder Chris MacClure launched the initiative in 2004.

International ASMR Day

9 April · Community/media observance associated with ASMR creators and audiences

YouTube’s official Culture & Trends blog identified 9 April 2024 as International ASMR Day; independent observance calendars consistently use 9 April as the annual date.

International Asteroid Day

30 June · United Nations / international observance

A/RES/71/90

International Astrology Day

Date of the March/northward equinox · Astrology community / International Astrology Day observance

Reference material attributes International Astrology Day to the Association for Astrological Networking and ties its date to the northward/March equinox rather than to one permanently fixe…

International Axe Throwing Day

13 June annually · International axe-throwing sport community

The World Axe Throwing League, a sport governing organization, identifies 13 June as International Axe Throwing Day.

International Bagpipe Day

10 March; 10 March 2026 confirmed by organizer · International bagpipe players, makers, scholars and cultural communities

The International Bagpipe Organisation marked International Bagpipe Day on 10 March 2026 and describes it as a celebration of the world’s diverse bagpipes and piping traditions.

International Book Giving Day

14 February annually · International Book Giving Day / volunteer literacy initiative

The Children’s Book Council describes International Book Giving Day as a volunteer initiative that takes place each year on 14 February.

International Casinos Day

15 May · International / casino-industry observance created by Casinos.com

Casinos.com states that it established International Casinos Day in 2025 for May 15 and displays a City of Las Vegas proclamation; EventGuide independently records an every-May-15 recurrenc…

International Cello Day

29 December annually · International music-appreciation observance

Akashvani News, India’s public broadcaster, identifies International Cello Day as an annual 29 December observance and links it to the legacy of cellist Pablo Casals.

International Childfree Day

1 August · international lifestyle and recognition observance for people who are childfree by choice

International Childfree Day organizers

International Children’s Book Day

2 April 2026; held on or around 2 April each year · International / IBBY-led observance

The International Board on Books for Young People says International Children’s Book Day is held on or around Hans Christian Andersen’s birthday, 2 April, and its 2026 announcement states t…

International Children’s Book Day

On or around 2 April each year · International Board on Books for Young People / international observance

IBBY states that since 1967 International Children’s Book Day has been celebrated in the first week of April, on or around Hans Christian Andersen’s birthday, 2 April.

International Colour Day

21 March · international colour awareness and interdisciplinary observance

International Colour Association (AIC)

International Country Music Day

17 September · International / informal country-music appreciation observance

Timeanddate identifies September 17 as International Country Music Day and treats it as an unofficial observance.

International Cribbage Day

10 February in American Cribbage Congress history; confirm current organizer programming yearly · American Cribbage Congress and international cribbage-community observance

American Cribbage Congress board minutes describe the second annual International Cribbage Day held on February 10 and note collaboration with cribbage organizations outside the United Stat…

International Dance Day

29 April · Organizer-backed international observance

International Theatre Institute (ITI) Dance Committee

International Day for Monuments and Sites

18 April · ICOMOS international heritage observance; concept adopted by UNESCO in 1983

International Council on Monuments and Sites (ICOMOS)

International Day for Underwater Cultural Heritage

21 August · UNESCO international day

Proclaimed at UNESCO’s 43rd General Conference (2025)

International Day of Human Space Flight

12 April · United Nations / international observance

A/RES/65/271

International Day of Islamic Art

18 November · UNESCO international day

Proclaimed at UNESCO’s 40th General Conference (2019)

International Day of Light

16 May · UNESCO international observance

UNESCO 39 C/Resolution 16

International Day of Mathematics

14 March · UNESCO international observance

International Day of the Celebration of the Solstice

21 June · United Nations / international observance

A/RES/73/300

International Day of the Intangible Cultural Heritage

17 October · UNESCO international day

Proclaimed at UNESCO’s 42nd General Conference (2023)

International Day of University Sport

20 September · UNESCO international day

International Day of Yoga

21 June · United Nations international observance

A/RES/69/131

International Design Day

27 April · Organizer-backed international design observance

International Council of Design (ICoD)

International Documentary Day

16 April · International / filmmaker-led documentary appreciation observance launched in 2026

Organizer-side launch material describes April 16 as an annual documentary observance beginning in 2026, and current calendar coverage likewise specifies April 16 every year.

International Dot Day

Around 15 September (“September 15-ish”) · International Dot Day / education and creativity community

The official International Dot Day project describes the “September 15-ish” celebration of creativity, courage and collaboration

International Dylan Thomas Day

14 May · international literary observance celebrating Dylan Thomas

Literature Wales and Dylan Thomas partners

International Edible Book Festival / Edible Book Day

1 April · International participatory book-art/food event

The Books2Eat creator site identifies Judith A. Hoffberg and Béatrice Coron as the creators and explains the April 1 date for the International Edible Book Festival.

International Face and Body Art Day

1 February · International / informal body-art observance

National Today gives International Face and Body Art Day an every-February-1 recurrence, and Holiday Today independently places it on February 1.

International Firewalking Day / Global Firewalking Day

4 April in the 2026 organizer calendar · International firewalking instructor/community event

The Global Firewalking Alliance’s current calendar lists multiple 4 April 2026 events explicitly branded International Firewalking Day or Global Firewalking Day.

International Francophonie Day

20 March · UNESCO international day

UNESCO international observance

International Geocaching Day

Third Saturday of August · global geocaching community and outdoor-exploration observance

Geocaching HQ

International Jazz Day

30 April · UNESCO / international observance

UNESCO 36 C/Resolution 39

International Joke Day

1 July · Popular culture observance

UPI reports that International Joke Day has been celebrated annually on 1 July since Wayne Reinagel started it in 1994.

International Kids’ Yoga Day

2 April 2027; annual event held in April · Kids’ Yoga Day / international organizer-led event

The Kids’ Yoga Day organization identifies the event as an annual international celebration held in April and currently lists the 12th annual edition for Friday, April 2, 2027.

International Louie Louie Day

11 April in the organizer/community tradition; current activity should be rechecked yearly · Grassroots music/fan observance centered on the song “Louie Louie”

The Louie Louie advocacy/fan community documents International Louie Louie Day and its April 11 tradition, developed through the Louie Louie Advocacy and Music Appreciation Society ecosyste…

International Marconi Day

Saturday closest to 25 April · international amateur-radio operating event

Cornish Radio Amateur Club

International Moon Day

20 July · United Nations / international observance

A/RES/76/76

International Museum Day

18 May · International Council of Museums global observance