National Mad Hatter Day
October 6
About National Mad Hatter Day
National Mad Hatter Day falls on Tuesday, 6 October 2026. It is an unofficial day of silliness inspired by the Mad Hatter from Lewis Carroll’s Alice’s Adventures in Wonderland, encouraging people to embrace whimsy, wear ridiculous hats, and act a little nonsensically. The date comes from the “In this style 10/6” label on the Hatter’s top hat in the book’s original illustrations.
How to Celebrate National Mad Hatter Day
The whole point of the day is to be playfully absurd, so the best celebrations lean into nonsense. Here are plenty of ways to take part.
- Wear an outrageous hat – Dig out the most eccentric headwear you own, whether that is a towering top hat, a feathered fascinator, or a homemade cardboard creation. The sillier the better, and bonus points for adding a “10/6” price tag.
- Host a mad tea party – Recreate the famous unending tea party with a long table, mismatched cups, and an assortment of teas, sandwiches, and cakes. Invite guests in costume and let the conversation be as topsy-turvy as you like.
- Hold a hat-making contest – Set up a craft station with plain hats, ribbons, feathers, and glue, then let everyone design their own Wonderland headpiece. Award a prize for the most magnificently absurd result.
- Trade riddles and wordplay – Carroll loved puzzles, so challenge friends with the Hatter’s own famous riddle, “Why is a raven like a writing desk?” There is no correct answer, which is rather the point.
- Celebrate an Unbirthday – Borrow from the story and throw an Unbirthday party. Since you have only one birthday a year, that leaves 364 unbirthdays to mark, so any day will do.
- Play absurd croquet – Stage a backyard game inspired by the Queen of Hearts, using inflatable flamingos as mallets and soft toys as hedgehogs. Costumes are strongly encouraged.
- Revisit Wonderland – Reread the book, listen to the audiobook, or watch one of the many film adaptations to refresh yourself on the Hatter, the March Hare, and the Dormouse before your celebrations.
- Do something deliberately silly – Wear mismatched socks, talk in riddles, or swap your usual routine for something nonsensical. The day exists purely to give everyone permission to be daft.
What is National Mad Hatter Day?
National Mad Hatter Day is a light-hearted, unofficial holiday dedicated to silliness and creativity. It takes its name and spirit from the Mad Hatter, one of the best-loved characters in Lewis Carroll’s 1865 novel Alice’s Adventures in Wonderland. There is no charity, organisation, or formal campaign behind it; instead it is celebrated informally by fans of the book, schools, libraries, and anyone who fancies an excuse to be playful. If you enjoy whimsical literary occasions, you might also like Alice in Wonderland Day, which celebrates the same beloved story.
When is National Mad Hatter Day?
National Mad Hatter Day is celebrated every year on 6 October. In 2026 it falls on a Tuesday. The date is fixed and never changes, because it is drawn directly from the “10/6” detail on the Hatter’s hat rather than a particular day of the week.
The History of National Mad Hatter Day
The Mad Hatter himself first appeared in 1865, when Lewis Carroll published Alice’s Adventures in Wonderland. In Sir John Tenniel’s original illustrations, the Hatter wears a large top hat with a slip of paper tucked into the band reading “In this style 10/6”. This was not a date at all but a price tag, indicating the hat cost ten shillings and sixpence, the currency of Victorian Britain. The phrase “mad as a hatter” predates the book and is often linked to the mercury poisoning once suffered by hat-makers, whose trade involved toxic compounds.
Mad Hatter Day as a celebration is far more recent. It was created in 1986 by a group of computer technicians in Boulder, Colorado, who spotted that the “10/6” on the hat could be read, in the American month-day date format, as the sixth of October. Delighted by the coincidence, they declared 6 October a day of good-natured silliness in honour of the character. The idea spread quickly through early online communities and word of mouth, and the day has grown steadily in popularity ever since.
Because it began as a grassroots bit of fun rather than an official campaign, there is no governing body or single set of rules. That informal, do-as-you-please spirit suits the Hatter perfectly, and it is part of why the day has endured for nearly four decades.
Fun Facts About National Mad Hatter Day
- The “10/6” on the Hatter’s hat means ten shillings and sixpence, the price of the hat, not a date.
- The celebration was founded in 1986 by computer technicians in Boulder, Colorado.
- Lewis Carroll never actually called the character the “Mad Hatter” in the book; he is simply “the Hatter”.
- The phrase “mad as a hatter” is thought to relate to mercury poisoning among Victorian hat-makers.
- The famous riddle “Why is a raven like a writing desk?” was posed with no intended answer, though many have since invented their own.
- The Hatter’s tea party is described as being permanently stuck at six o’clock, which is why it never ends.
Why National Mad Hatter Day Matters
Days like this offer a simple, welcome reminder to stop taking life so seriously. Embracing a little nonsense can lift spirits, spark creativity, and bring people together over shared laughter. It is also a charming celebration of one of literature’s most enduring stories, keeping Alice’s Adventures in Wonderland alive for new generations of readers.
Frequently Asked Questions
What is National Mad Hatter Day?
It is an unofficial, light-hearted holiday celebrating silliness, inspired by the Mad Hatter from Alice’s Adventures in Wonderland. People mark it by wearing daft hats, hosting tea parties, and being playfully absurd.
When is National Mad Hatter Day in 2026?
It is on Tuesday, 6 October 2026. The date is fixed and falls on 6 October every year.
Why is Mad Hatter Day on 6 October?
The date comes from the “10/6” label on the Hatter’s top hat in the original illustrations. Read as a month-and-day in American format, “10/6” becomes the sixth of October, which the day’s founders adopted in 1986.
Spread the Word
Join the fun and share your silliest hats, maddest tea parties, and best riddles on social media with #MadHatterDay and #MadHatterDay2026. Tag your friends and challenge them to out-daft you!
Related Awareness Days
- Alice in Wonderland Day – Celebrates the same Lewis Carroll classic that gave us the Mad Hatter.
- International Yada, Yada, Yada Day – Another quirky day that revels in the wonderfully nonsensical.
- National Iced Tea Day – A natural companion for anyone hosting a Mad Hatter tea party.
Links
Featured image: Photo by Adele Erolsky on Unsplash.
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