Day Guide for Thursday September 18th 2025

This is our day guide for Thursday September 18th 2025 which shows you at a glance what's happening around the world on day 261 of 2025.

Holidays on September 18th 2025

Not a Public Holiday

Armenia: Exaltation of the Holy Cross. Celebrates the return of the Holy Cross to Jerusalem following its capture by the Persians

Chile: Independence Day. On September 18th 1810, Chile broke from Spanish rule, declaring their independence. The Spanish had ruled Chile since the middle of the Sixteenth Century

September 17th 2025 | Go to Today | September 19th 2025

Observances on September 18th 2025

USA: National Cheeseburger Day
USA: National HIV/AIDS and Aging Awareness Day
International: World Bamboo Day
United Nations: International Equal Pay Day

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