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?

Observances on September 3rd 2025

Merchant Navy Day

Merchant Navy Day

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

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National Flag Day

National Flag Day

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

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Victory Day

Victory Day

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

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World Skyscraper Day

World Skyscraper Day

September 3rd is the global commemorative day for skyscrapers

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Yamashita surrender

Yamashita surrender

Find out the dates, history and traditions of Yamashita surrender

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Armed Forces Day

Armed Forces Day

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

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National Welsh Rarebit Day

National Welsh Rarebit Day

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

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U.S. Bowling League Day

U.S. Bowling League Day 🎳

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

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International Bacon Day

International Bacon Day 🥓

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

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Public Holidays on September 3rd 2025

Karam

Karam

A religious tribal festival that gives thanks to Karam Devta for a good harvest

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San Marino Foundation Day

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

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