This is our day guide for Thursday September 3rd 2026 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 2026
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 DiocletianSeptember 2nd 2026 | Go to Today | September 4th 2026
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| General Information for September 3rd 2026 | |
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| There are 1 public holidays today. | |
| Day 246 of 2026 | |
| 119 days left in 2026 | |
| Week 36 of the year | |
| On this Day in History | |
| 1953 - The Convention of Human Rights is activated and later becomes enshrined in the European Convention of Human Rights. | |
| 1778 - American Revolution: First Battle of Ushant - British and French fleets fight to a standoff. | |
| 1260 - The Mamluks defeat the Mongols at the Battle of Ain Jalut in Palestine, marking their first decisive defeat and the point of maximum expansion of the Mongol Empire. | |
| 590 - Consecration of Pope Gregory I (Gregory the Great). |
Office Holidays provides calendars with dates and information on public holidays and bank holidays in key countries around the world.
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