This is our day guide for Thursday September 11th 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 11th 2025
International: Ethiopian New Year
The Ethiopian calendar is based on the Coptic calendar, which was fixed to the Julian calendar in 25 BC by Emperor Augustus of Rome
Antigua and Barbuda: National Day of Prayer
To seek God’s divine intervention, guidance and blessings amidst an increase in violent crime.Regional
Spain (regional): National Day of Catalonia
The day known as 'Festa Nacional de Catalunya' marks September 11th 1714 when Catalan forces were defeated by King Philip V of SpainRegional
Switzerland (regional): Jeûne genevois
Geneva only. A thanksgiving holiday that was originally a medieval fasting daySeptember 10th 2025 | Go to Today | September 12th 2025
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| General Information for September 11th 2025 | |
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| There are 4 public holidays today. | |
| Day 254 of 2025 | |
| 111 days left in 2025 | |
| Week 37 of the year | |
| On this Day in History | |
| 1980 - Voters approve a new Constitution of Chile, later amended after the departure of president Pinochet. | |
| 1852 - The State of Buenos Aires secedes from the Argentine Federal government, rejoining on 17 September 1861. Several places are named Once de Septiembre after this event. | |
| 1609 - Henry Hudson discovers Manhattan Island and the indigenous people living there. | |
| 1609 - Expulsion order announced against the Moriscos of Valencia; beginning of the expulsion of all Spain's Moriscos. |
Office Holidays provides calendars with dates and information on public holidays and bank holidays in key countries around the world.
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