June 23, 2026, is the 174th day of the year, with 191 days remaining, and it falls on a Tuesday — in the twenty-fifth week of the year.

With 16 national and international days on the calendar, June 23 carries three significant UN observances side by side: United Nations Public Service Day, International Widows’ Day, and International Olympic Day, marking the 132nd anniversary of the IOC’s founding in 1894. International Women in Engineering Day addresses one of STEM’s most persistent gender gaps, while National Typewriter Day commemorates Christopher Sholes’ 1868 patent that gave the world the QWERTY keyboard. A Detroit-style pizza, a bowl of porridge, and the freedom to simply let something go add something more personal to this date.

📅 Tuesday, June 23, 2026

National Days on June 23

All national & international days celebrated today

15 celebrations on this day
National Days on June 23, 2026

Here’s every observance celebrated on June 23, 2026.

✦ All 16 Observances on June 23
🧠 International Dravet Syndrome Awareness Day June 23, 2014 · Dravet Syndrome Foundation (DSF)
🏅 International Olympic Day IOC founded June 23, 1894 · Pierre de Coubertin
🎗️ International Widows’ Day UN · fixed June 23 · poverty & social exclusion awareness
⚙️ International Women in Engineering Day (INWED) Fixed June 23 · addressing the gender gap in engineering
🔄 Let It Go Day Release what no longer serves you · fixed June 23
🍕 National Detroit-Style Pizza Day Also: Buddy’s Pizza Day · square pan, crispy edges
🏢 National Family Owned & Operated Businesses Day The AG Center · Est. March 2021
💧 National Hydration Day Drink water · fixed June 23
🥜 National Pecan Sandies Day Also: National Pecan Sandy Day · buttery shortbread cookies
💗 National Pink Day Wear the colour · fixed June 23
🥣 National Porridge Day Oats, warmth & a simple start to the day · fixed June 23
⌨️ National Typewriter Day Christopher Sholes patented the typewriter June 23, 1868
🦩 Pink Flamingo Day Pink, leggy & iconic · fixed June 23
🏃 Runner’s Selfie Day Document the miles · fixed June 23
📐 SAT Math Day Also: Scholastic Assessment Test Math Day · fixed June 23
🏛️ United Nations Public Service Day UN · fixed June 23 · UN Public Service Awards

National & International Days on June 23

Whether you’re celebrating the Olympic spirit, honoring women in engineering, supporting widows worldwide, typing on an old typewriter, eating Detroit-style pizza, drinking enough water, wearing pink, or letting go of something that’s been weighing on you, here’s the story behind each of these June 23 celebrations.


International Dravet Syndrome Awareness Day

International Dravet Syndrome Awareness Day shines a light on this rare and severe form of epilepsy — affecting approximately 1 in 15,700 individuals and beginning in infancy. The day falls within June, which is recognized as Dravet Syndrome Awareness Month, a time for the global community to advocate, fundraise, and spread education about the condition. The first International Dravet Syndrome Awareness Day was held on June 23, 2014, growing out of the work of the Dravet Syndrome Foundation (DSF), founded in 2009 by Lori O’Driscoll — a parent of a child with Dravet syndrome — who united other driven families to accelerate research toward better treatments and a cure.


International Olympic Day

International Olympic Day commemorates the founding of the International Olympic Committee in 1894. It was first observed in 1948 and promotes Olympic values such as excellence, friendship, and respect. Events on this day often encourage people of all ages and backgrounds to engage in physical activity and embrace the spirit of global sportsmanship.


International Widows Day

International Widows Day was established by The Loomba Foundation in 2005 to raise awareness about the hardships faced by widows, especially in developing countries. It marks the day in 1954 when Lord Loomba’s mother became a widow. In 2010, the United Nations officially recognized it, and the first UN-backed observance took place in 2011. The day highlights issues such as poverty, discrimination, and lack of access to resources.


International Women in Engineering Day

International Women in Engineering Day (INWED) was originally launched as National Women in Engineering Day in the UK in 2014 by the Women’s Engineering Society. The observance became international in 2017. It aims to recognize the achievements of women in engineering fields and to encourage more girls and women to consider careers in areas like aerospace, electrical, and civil engineering. It also works to address the gender gap that still persists in the industry today.


National Detroit-Style Pizza Day

National Detroit-Style Pizza Day was first celebrated in 2021 to mark the 75th anniversary of Detroit-style pizza. It was founded by Buddy’s Pizza, where the style originated in 1946. Known for its square shape, thick yet airy crust, and caramelized edges, the pizza is baked in heavy steel pans once used in auto shops. This local specialty has grown into a national favorite.

🍕 See also our complete list of pizza-related national days.


National Family Owned & Operated Businesses Day

National Family Owned & Operated Businesses Day was created by The AG Center in March 2021 to honor family-run businesses that have endured changing economic conditions and corporate buyouts across generations. These enterprises make up the vast majority of businesses in North America, employing millions and generating a substantial share of local GDP. Consumers tend to trust family-operated businesses more than non-family ones and are often willing to pay a premium for their personalized service.


National Hydration Day

National Hydration Day was founded in 2016 by SafeTGard Corporation to honor Coach Victor Hawkins, who invented a mouthguard that released electrolytes to keep athletes hydrated. Observed on the anniversary of his passing in 2012, the day promotes awareness about the importance of staying hydrated, especially during sports and hot weather.


National Let It Go Day

National Let It Go Day was created by Thomas and Ruth Roy of Wellcat Holidays to encourage emotional release and self-forgiveness. Observed annually on June 23, it’s a reminder to let go of regrets and burdens from the past to make space for healing and growth.


National Pecan Sandies Day

National Pecan Sandies Day spotlights the crumbly, buttery cookie filled with chopped pecans. The term “sandies” refers to their sandy texture, with roots in the French sablé cookie. Keebler trademarked the name in 1955, helping popularize pecan sandies across the United States. Though the exact origin is debated, the cookie has become a classic treat enjoyed with coffee or tea.


National Pink Day

National Pink Day embraces the color pink in fashion, decor, and self-expression. While it has no clear founding origin, the day has been used to support awareness campaigns like breast cancer initiatives and anti-bullying efforts.


👚 Similar days include International Day of Pink celebrated on the second Wednesday in April and Wear It Pink Day in October in the UK 🇬🇧, both promoting kindness and unity.


National Porridge Day

National Porridge Day recognizes porridge as a nourishing and affordable dish made from grains like oats, rice, or cornmeal. While June 23 date highlights the role of porridge as a global comfort food, World Porridge Day falls on October 10 and serves a charitable purpose, supporting Mary’s Meals’ efforts to feed children in poverty.


National Typewriter Day

National Typewriter Day marks the anniversary of Christopher Latham Sholes receiving the U.S. patent for the typewriter in 1868. Sholes’ model became the first commercially successful typewriter and helped launch a revolution in written communication. While the typewriter is mostly obsolete today, the day honors its impact on publishing, office work, and even modern keyboards.


Pink Flamingo Day

Pink Flamingo Day was first proclaimed in 2007 by Dean Mazzarella, the mayor of Leominster, Massachusetts. It honors Don Featherstone, who designed the original plastic pink flamingo in 1957. Featherstone’s creation became a cultural icon of kitsch and suburban charm. Celebrations now include art exhibits and public displays in various cities, keeping the flamingo’s legacy alive.


Runner’s Selfie Day

Runner’s Selfie Day is an unofficial holiday created in 2015. It invites runners around the world to snap and share selfies mid-run, celebrating the sport while documenting their personal progress. In doing so, it also connects runners globally through this photo-driven tradition.


SAT Math Day

SAT Math Day encourages students to assess and strengthen their readiness in core quantitative areas—algebra, geometry, and data interpretation—ahead of the exam’s math section.


United Nations Public Service Day

United Nations Public Service Day was designated by the UN General Assembly in 2002. The observance celebrates the value of public service and recognizes civil servants’ contributions to development. It encourages youth to pursue public sector careers and supports the UN’s Sustainable Development Goals by promoting strong, transparent institutions.

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Last Update: June 24, 2026

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