Day Guide for Tuesday December 15th 2026 What are the holidays on December 15th 2026?

This is our day guide for Tuesday December 15th 2026 which shows you at a glance what's happening on this day around the world. Using the calendar on this page, you can look at a day guide for any day. Why not look up your birthday to see which holidays you share it with?

Holidays on December 15th 2026

Regional

Bonaire, Sint Eustatius and Saba (regional): Kingdom Day

Commemorates the signing of the Charter of the Kingdom of the Netherlands by Queen Juliana on 15 December 1954.

Observances on December 15th 2026

USA: Bill of Rights Day

Find out the dates, history and traditions of Bill of Rights Day

USA: Cat Herders Day

Find out the dates, history and traditions of Cat Herders Day

USA: National Cupcake/ Lemon Cupcake Day

Find out the dates, history and traditions of National Cupcake/ Lemon Cupcake Day

India: International Tea Day

A day to celebrate the most popular drink in the world after water.

December 14th 2026 | Go to Today | December 16th 2026

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General Information for December 15th 2026
There are 1 public holidays today.
Day 349 of 2026
16 days left in 2026
Week 51 of the year
On this Day in History
1961 - Adolf Eichmann is sentenced to death after being found guilty by an Israeli court of 15 criminal charges, including charges of crimes against humanity, crimes against the Jewish people, and membership of an outlawed organization.
1960 - King Mahendra of Nepal suspends the country's constitution, dissolves parliament, dismisses the cabinet, and imposes direct rule.
1933 – The Twenty-first Amendment to the United States Constitution officially becomes effective, repealing the Eighteenth Amendment that prohibited the sale, manufacture, and transportation of alcohol.
1914 - World War I: The Serbian Army recaptures Belgrade from the invading Austro-Hungarian Army.