Day Guide for Wednesday September 3rd 2025 What are the holidays on September 3rd 2025?

This is our day guide for Wednesday September 3rd 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 3rd 2025

San Marino: Foundation Day

San Marino was founded in 301 AD by St. Marinus, a stone mason from Croatia who wanted to escape persecution by the emperor Diocletian

Observances on September 3rd 2025

Taiwan: Armed Forces Day

Find out the dates, history and traditions of Armed Forces Day

United Kingdom: International Bacon Day

Find out the dates, history and traditions of International Bacon Day

USA: National Welsh Rarebit Day

It's a grilled cheese on steroids. Note - do not add steroids to the recipe.

USA: U.S. Bowling League Day

Find out the dates, history and traditions of U.S. Bowling League Day

Philippines: Yamashita surrender

Find out the dates, history and traditions of Yamashita surrender

International: World Skyscraper Day

September 3rd is the global commemorative day for skyscrapers

China: Victory Day

Commemorates the anniversary of the victory over Japan in the second world war.

United Kingdom: Merchant Navy Day

Merchant Navy Day is observed in the UK and Canada, honouring the sacrifices made during war and conflict.

Australia: National Flag Day

Commemorates the day in 1901 on which the Australian National Flag was first flown.

September 2nd 2025 | Go to Today | September 4th 2025

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General Information for September 3rd 2025
There are 1 public holidays today.
Day 246 of 2025
119 days left in 2025
Week 36 of the year
On this Day in History
1967 - Dagen H in Sweden: traffic changes from driving on the left to driving on the right overnight.
1953 - The Convention of Human Rights is activated and later becomes enshrined in the European Convention of Human Rights.
1945 - Three-day celebration was held in China, following the Victory over Japan Day on September 2.
1658 - Richard Cromwell becomes Lord Protector of England