September 21 national days 2026
On September 21st, 6 national days fall on this date.
September 21 is a date on the 2026 national-day calendar. TheDayOf currently lists 6 observances for this date: National Chai Day, National Pecan Cookie Day, National Alzheimer's Awareness Day, Yom Kippur, National Gratitude Day, and International Day of Peace. Open any day page for the date, history, and how to celebrate, or browse the rest of September from the month hub.
National Chai Day
National Chai Day is an informal U.S. food-and-drink observance marked on September 21. In 2026 it falls on Monday, September 21. Itā¦
National Pecan Cookie Day
National Pecan Cookie Day is an informal U.S. food observance marked on September 21. In 2026 it falls on Monday, September 21. It focusesā¦
National Alzheimer's Awareness Day
National Alzheimerās Awareness Day is a U.S. calendar awareness date marked on September 21. In 2026 that is Monday, September 21. It sitsā¦
Yom Kippur
Yom Kippur - the Day of Atonement - is the holiest day in Judaism. In 2026 it begins at sundown on Sunday, September 20, and ends afterā¦
National Gratitude Day
National Gratitude Day is an informal U.S. thankfulness observance marked on September 21. In 2026 that is Monday, September 21. It alignsā¦
International Day of Peace
The International Day of Peace is a United Nations observance marked every year on September 21. In 2026 that is Monday, September 21. Theā¦