Day Guide for Sunday September 21st 2025 What are the holidays on September 21st 2025?

This is our day guide for Sunday September 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 September 21st 2025

Armenia: Independence Day

Armenia was the first non-Baltic republic to secede from the Soviet Union, on this day in 1991

Belize: Independence Day

Commemorates Independence from the United Kingdom in 1981

Cambodia: Ancestors' Day

Pchum Ben, also known as Ancestors' Day, is a Cambodian religious festival which culminates on the 15th day of the tenth month in the Khmer calendar, marking the end of the Buddhist lent

Regional

India (regional): Sree Narayana Guru Samadhi

Marks the death ceremony of the Sree Narayana Guru, saint, prophet and social reformer from Kerala

Regional

India (regional): Bathukamma Starting Day

Bathukamma is floral festival celebrated by the Hindu women of Telangana

Regional

India (regional): Mahalaya

Marks the first day of the festival of Durga Puja

Malta: Independence Day

Malta gained its political Independence from Great Britain on September 21st 1964

Regional

Switzerland (regional): Swiss Federal Fast

A Swiss government-arranged multi-denominational holiday celebrated by Christians and the Jewish community

Observances on September 21st 2025

USA: Wife Appreciation Day

A gentle reminder - don't just appreciate your wife on the third Sunday in September!

United Nations: International Day of Peace 

The International Day of Peace is celebrated annually on 21 September and is a United Nations-commissioned global holiday.

USA: National Pecan Cookie Day

Find out the dates, history and traditions of National Pecan Cookie Day

USA: World Alzheimer’s Day

2 out of every 3 people globally believe there is little or no understanding of dementia in their countries.

United Kingdom: Telegraph Pole Appreciation Day

Find out the dates, history and traditions of Telegraph Pole Appreciation Day.

USA: National Gratitude Day

Celebrate World Gratitude Day by embracing thankfulness, enhancing well-being, and fostering global connections. Discover the power of gratitude today!

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

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General Information for September 21st 2025
There are 8 public holidays today.
Day 264 of 2025
101 days left in 2025
Week 38 of the year
On this Day in History
2013 - al-Shabaab Islamic militants attack the Westgate shopping mall in Nairobi, Kenya, killing at least 67 people.
1976 - Seychelles joins the United Nations.
1965 - Gambia, Maldives and Singapore are admitted as members of the United Nations.
1942 - In Poland, at the end of Yom Kippur, Germans order Jews to permanently evacuate Konstantynów and move to the Ghetto in Biala Podlaska, established to assemble Jews from seven nearby towns, including Janów Podlaski, Rossosz and Terespol.