World Patient Safety Day

United Nations observance

World Patient Safety Day is a United Nations observance in the USA

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Constitution Day and Citizenship Day

Observance

Constitution Day and Citizenship Day is a combined event that occurs in the United States on September 17 each year.

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International Equal Pay Day

9/18/2025

United Nations observance

International Equal Pay Day is a United Nations observance in the USA

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Air Force Birthday

9/18/2025

Observance

Air Force Birthday is a observance in the USA

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National POW/MIA Recognition Day

9/19/2025

Observance

National POW/MIA Recognition Day is annually observed in the United States on the third Friday of September.

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International Day of Peace

9/21/2025

United Nations observance

The United Nations' (UN) International Day of Peace is annually held on September 21 to recognize the efforts of individuals, organizations and governments to end conflict and promote peace.

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Navratri

9/22/2025

Hindu Holiday

Navratri is a Hindu holiday in the USA

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