This is our day guide for Friday September 18th 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 18th 2026
Angola: National Heroes' Day (in lieu)
Marks the birthday of the national hero Agostinho Netowho was born on this day in 1922.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 CenturySeptember 17th 2026 | Go to Today | September 19th 2026
| Choose a Day |
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| General Information for September 18th 2026 | |
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| There are 3 public holidays today. | |
| Day 261 of 2026 | |
| 104 days left in 2026 | |
| Week 38 of the year | |
| On this Day in History | |
| 2007 - Buddhist monks join anti-government protesters in Myanmar, starting what some call the Saffron Revolution. | |
| 1870 - Old Faithful Geyser is observed and named by Henry D. Washburn during the Washburn-Langford-Doane Expedition to Yellowstone. | |
| 1180 - Manuel I Komnenos, last Emperor of the Komnenian restoration dies. The Byzantine Empire slips into terminal decline. | |
| 96 - Nerva is proclaimed Roman Emperor after Domitian is assassinated. |
Office Holidays provides calendars with dates and information on public holidays and bank holidays in key countries around the world.
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