October 23 National Days

October 23 is the 296th day of the year (297th in leap years) in the Gregorian calendar, leaving 69 days until the end of the year. In 2025, it falls on a Thursday in the 43rd week and features nine national and international observances.

The day highlights comfort food, quirky fashion, and cinematic thrills—from savoring a slice of National Boston Cream Pie Day to showing off your favorite pair on National Croc Day, and spooky fun with National Horror Movie Day.

Below is a list of all observances taking place on October 23, each with a short explanation.

National & International Days on October 23

Event Organizers Day recognizes the professionals who turn ideas into well-coordinated experiences—whether weddings, conferences, festivals, or fundraisers. The day acknowledges their skill in managing every detail, from planning and logistics to design and execution. Event organizers play an essential role in connecting people, supporting industries, and shaping memorable moments that often go unnoticed by the public. The observance was created in 2016 by EventWork, a Brazilian platform for event professionals, to highlight the value and dedication behind this demanding profession.

International Snow Leopard Day raises awareness about the endangered snow leopard and the need to protect its fragile mountain habitat. The observance began in 2013, following the Bishkek Declaration signed by 12 countries that pledged to safeguard snow leopards and their ecosystems. It highlights the animal’s ecological importance as a keystone predator and draws attention to threats such as habitat loss, poaching, and human–wildlife conflict. In 2024, the United Nations General Assembly officially recognized this observance, underscoring its global importance in wildlife conservation.

Mole Day celebrates the concept of the mole in chemistry—a unit that represents 6.02×10²³ particles such as atoms or molecules. The day highlights how this number, known as Avogadro’s number, helps chemists measure and compare substances in meaningful quantities. The idea for the observance originated in the early 1980s after an article in The Science Teacher magazine. Chemistry teacher Maurice Oehler later founded the National Mole Day Foundation in 1991 to spark student interest and appreciation for the role of chemistry in everyday life.

National Boston Cream Pie Day honors one of America’s most classic desserts, a layered sponge cake filled with vanilla custard and topped with chocolate glaze. Despite its name, it’s technically a cake — the term “pie” comes from the 19th-century practice of baking cakes in pie tins. The dessert was created in 1856 by French-Armenian chef Augustine François Anezin (also known as M. Sanzian) at Boston’s Parker House Hotel, now the Omni Parker House. Over time, the recipe became so closely tied to Massachusetts that it was declared the state’s official dessert in 1996.

National Croc Day celebrates the colorful, lightweight footwear brand that started as a boating shoe and became a global trend. The day recognizes Crocs’ rise from a niche product to a pop-culture symbol of comfort and individuality. Founded in 2002 in Boulder, Colorado, Crocs, Inc. first introduced its foam clogs at a boat show before expanding into everyday wear. The observance began as a fan-driven movement online and was officially embraced by the company in 2018, marking the height of “Croctober,” a month-long celebration of the brand’s playful spirit.

☀️ A related day, World Croc Day, is celebrated on June 17th.

National Horror Movie Day honors the horror genre and its impact on film and culture. It’s observed close to Halloween, when spooky stories are already in the air. The day highlights how horror movies tap into human fears while offering a safe way to explore them. From early monster classics to today’s chilling thrillers, these films continue to entertain, surprise, and spark conversation about what frightens and fascinates us.

National iPod Day celebrates the device that changed how people listened to music. When Apple released the iPod in 2001, it made it possible to carry thousands of songs in your pocket—something that felt magical at the time. The iPod made music personal and portable, letting people create playlists for every mood and moment. It also helped shape the way we listen to music today through apps and streaming. For many, the iPod brings back memories of simpler times filled with favorite songs and wired headphones.

National Paralegal Day used to be observed on October 23 but since 2024 is celebrated on August 6.

National Slap Your Annoying Coworker Day is a tongue-in-cheek observance created as a humorous way to vent everyday workplace frustrations. Despite its exaggerated name, the day is meant purely as a joke and does not promote violence of any kind. It gained popularity through internet and social media posts that poke fun at common office irritations, such as chatty colleagues or messy desks. The observance serves as a lighthearted reminder that humor can help people cope with minor annoyances in shared workspaces.

National TV Talk Show Host Day honors the personalities who bring laughter, insight, and connection to television audiences. The date marks the birthday of Johnny Carson, born on October 23, 1925, whose long career on The Tonight Show set the standard for late-night entertainment. The day celebrates the art of conversation—how skilled hosts draw out stories, address current issues, and create moments that become part of pop culture history. From early pioneers to today’s stars, it reminds us how talk shows have shaped the way people share ideas and experience television together.

National Days in October

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