Search hundreds of weird, unusual, and national holidays to find out when they’re celebrated.

Wondering when Opposite Day, Siblings Day, Pi Day, or another quirky celebration takes place? Use the search above to instantly find the date of any holiday, see when it falls this year, and discover fun ways to celebrate. Whether you’re planning ahead or simply asking, “What weird holiday is today?”, you’ll find the answer in seconds.

How to Find Any Weird Holiday

Start typing a holiday name, keyword, or even part of a name to instantly search hundreds of weird, unusual, and national holidays.

Searches aren’t limited to exact holiday names. For example, typing “cake” will show cake-related holidays such as Chocolate Cake Day, Carrot Cake Day, and Cheesecake Day. Searching “cat” will return cat-themed celebrations, while “pie” will find pie holidays throughout the year.

Click any holiday to see when it’s celebrated, how many days remain until the next celebration, and jump straight to the full guide with fun facts, history, and celebration ideas.

Why Do Weird Holidays Have Different Dates?

Not every weird holiday is celebrated on the same schedule.

Some have a fixed date every year, while others are based on a specific weekday, such as the third Sunday in July or the last Friday in June. Because of this, the calendar date changes from year to year.

This tool automatically calculates the correct date for the current year, making it easy to see exactly when any weird, unusual, or national holiday is celebrated.