This is our day guide for Sunday September 17th 2023 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 17th 2023
Angola: National Heroes' Day
Marks the birthday of the national hero Agostinho Netowho was born on this day in 1922.
Israel: Rosh Hashanah
Second day of Rosh Hashanah, the New Year of the Jewish calendarRegional
Switzerland (regional): Swiss Federal Fast
A Swiss government-arranged multi-denominational holiday celebrated by Christians and the Jewish communityObservances on September 17th 2023
USA: Constitution Day and Citizenship Day
One of the most patriotic holidays, today celebrates both the constitution and citizens of the USA.
USA: National Apple Dumpling Day
Find out the dates, history and traditions of National Apple Dumpling Day
Honduras: Teachers Day
Find out the dates, history and traditions of Teachers Day
International: World Patient Safety Day
World Patient Safety Day was established to enhance global understanding of patient safety
Belarus: Day of People's Unity
Find out the dates, history and traditions of the Day of People's Unity in Belarus.
USA: Wife Appreciation Day
A gentle reminder - don't just appreciate your wife on the third Sunday in September!
USA: National DEI Day
Celebrate National DEI Day by embracing diversity, equity, and inclusion. Join in meaningful conversations to build a more united and equitable society.September 16th 2023 | Go to Today | September 18th 2023
| Choose a Day |
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| General Information for September 17th 2023 | |
|---|---|
| There are 3 public holidays today. | |
| Day 260 of 2023 | |
| 105 days left in 2023 | |
| Week 37 of the year | |
| On this Day in History | |
| 1980 - After weeks of strikes at the Lenin Shipyard in Gdansk, Poland, the nationwide independent trade union Solidarity is established. | |
| 1939 - Taisto Mäki becomes the first man to run the 10,000 metres in under 30 minutes, in a time of 29:52.6 | |
| 1908 - The Wright Flyer flown by Orville Wright, with Lieutenant Thomas Selfridge as passenger, crashes killing Selfridge. He becomes the first airplane fatality. | |
| 1176 - The Battle of Myriokephalon is fought. |
Office Holidays provides calendars with dates and information on public holidays and bank holidays in key countries around the world.
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