Day Guide for Thursday August 21st 2025 What are the holidays on August 21st 2025?

This is our day guide for Thursday August 21st 2025 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 August 21st 2025

Not a Public Holiday

Czech Republic: Day of Memory

A state holiday that commemorates those who lost their lives during the occupation of Czechoslovakia by Warsaw Pact troops that began in August 1968.

Morocco: Youth Day

Youth Day is celebrated on the birthday of the reigning monarch, Mohammed VI

Philippines: Ninoy Aquino Day

The holiday commemorates the assassination of former Senator Benigno 'Ninoy' Aquino, Jr. on August 21st 1983

Observances on August 21st 2025

United Nations: International Day of Remembrance and Tribute to the Victims of Terrorism

Find out the dates, history and traditions of International Day of Remembrance and Tribute to the Victims of Terrorism

USA: National Brazilian Blowout Day

Find out the dates, history and traditions of National Brazilian Blowout Day

USA: National Senior Citizen’s Day

Just like Senior Citizens, this holiday never gets old - at heart!

USA: National Spumoni Day

Find out the dates, history and traditions of National Spumoni Day

International: World Entrepreneurs' Day

Today is World Entrepreneurs' Day, a day in which we acknowledge and celebrate those courageous enough to blaze their own trail.

Czech Republic: Day of Memory

A state holiday that commemorates those who lost their lives during the occupation of Czechoslovakia by Warsaw Pact troops that began in August 1968.

August 20th 2025 | Go to Today | August 22nd 2025


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General Information for August 21st 2025
There are 3 public holidays today.
Day 233 of 2025
132 days left in 2025
Week 34 of the year
On this Day in History
1970 - After 11 years of construction, the Aswan High Dam in Egypt is completed.
1959 - United States President Dwight D. Eisenhower signs an executive order proclaiming Hawaii the 50th state of the union. Hawaii's admission is currently commemorated by Hawaii Admission Day
1954 - First Indochina War: The Geneva Conference partitions Vietnam into North Vietnam and South Vietnam.
1888 - The first successful adding machine in the United States is patented by William Seward Burroughs.