What national days are on December 15, 2026?

December 15, 2026 has 3 observances: International Tea Day, Bill of Rights Day and Cat Herders Day.

Which weekly observances include December 15, 2026?

December 15, 2026 falls during Human Rights Week (Dec 10–16).

What day of the year is December 15?

December 15 is the 349th day of 2026, out of 365 days.

How many days are left in the year after December 15?

There are 16 days left in 2026 after December 15.

What day of the week is December 15, 2026?

December 15, 2026 falls on a Tuesday.

December 15, 2026: National Days & Holidays

December 15 is International Tea Day, plus 2 more. Here’s everything celebrated on this date.

3observances on this date

349thday of 2026 (out of 365)

16days left in 2026

🍕 Food & Drink

International Tea Day

Dec 15

International Tea Day on December 15 celebrates tea and the workers who grow it. Learn tea history, types of tea and why…

📜 Education & History

Bill of Rights Day

Dec 15

Bill of Rights Day on December 15 marks the 1791 ratification of the first ten amendments to the U.S. Constitution. Learn what…

🎈 Fun & Quirky

Cat Herders Day

Dec 15

Cat Herders Day on December 15 honors anyone who manages chaos, from teachers to project managers. Learn the phrase's origin and how…

Weekly observances on December 15

1 week-long observance includes December 15, 2026.

Weekly observance Day 6 of 7

Human Rights Week

December 10–16, 2026

Human Rights Week begins on December 10 each year. See how it links the 1948 Universal Declaration with the Bill of Rights, ratified December 15, 1791.

About Human Rights Week

December 15 at a glance

What national days are on December 15, 2026?: December 15, 2026 has 3 observances: International Tea Day, Bill of Rights Day and Cat Herders Day.
Which weekly observances include December 15, 2026?: December 15, 2026 falls during Human Rights Week (Dec 10–16).
What day of the year is December 15?: December 15 is the 349th day of 2026, out of 365 days.
How many days are left in the year after December 15?: There are 16 days left in 2026 after December 15.
What day of the week is December 15, 2026?: December 15, 2026 falls on a Tuesday.

Key dates in December 2026

All December national days

More in December

December 2026

SunMonTueWedThuFriSat1World AIDS DayRosa Parks Day+1 2National Mutt DayNational Special Education Day+1 3International Day of Persons with DisabilitiesNational Roof Over Your Head Day+1 4National Cookie DayNational Sock Day+1 5International Volunteer DayWorld Soil Day+1 6St. Nicholas DayNational Miners Day+1 7National Pearl Harbor Remembrance DayNational Cotton Candy Day+1 8Feast of the Immaculate ConceptionBodhi Day+1 9National Pastry DayNational Llama Day+1 10Human Rights DayDewey Decimal System Day+1 11International Mountain DayNational App Day+1 12Feast of Our Lady of GuadalupeNational Gingerbread House Day+1 13St. Lucia DayNational Cocoa Day+1 14Monkey DayNational Bouillabaisse Day+1 15International Tea DayBill of Rights Day+1 16Las Posadas (begins)Boston Tea Party Day+1 17SaturnaliaNational Maple Syrup Day+1 18National Twin DayNational Ugly Christmas Sweater Day+2 19National Emo DayNational Hard Candy Day+1 20National Sangria DayInternational Human Solidarity Day+1 21Winter SolsticeYule+2 22Forefathers’ DayNational Short Girl Appreciation Day+1 23FestivusNational Pfeffernüsse Day+1 24Christmas EveFeast of the Seven Fishes+1 25Christmas DayNational Pumpkin Pie Day+1 26Kwanzaa (begins)Boxing Day+2 27National Fruitcake DayInternational Day of Epidemic Preparedness+1 28Holy Innocents’ DayPledge of Allegiance Day+1 29Tick Tock DayNational Pepper Pot Day+1 30National Bacon DayNational Bicarbonate of Soda Day+1 31New Year’s EveHogmanay+1