This is our day guide for Wednesday September 17th 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 17th 2025
Angola: National Heroes' Day
Marks the birthday of the national hero Agostinho Netowho was born on this day in 1922.Regional
India (regional): Viswakarma Puja
Vishwakarma Puja is a day of celebration for Vishwakarma, a Hindu god, the divine architect
Nepal: National Mourning Day
A national mourning day to pay tribute to those killed in the violent anti-government agitation.
Papua New Guinea: Independence Day Holiday
Commemorates the day Papua New Guinea gained its indepence from Australia in 1975Regional
Spain (regional): Day of Melilla
Melilla only. Marks the taking of the city by Duke of Medina Sidonia in 1497
Tonga: Birthday of HRH Crown Prince
The current heir to the throne was born on September 17th 1985September 16th 2025 | Go to Today | September 18th 2025
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| General Information for September 17th 2025 | |
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| There are 6 public holidays today. | |
| Day 260 of 2025 | |
| 105 days left in 2025 | |
| Week 38 of the year | |
| On this Day in History | |
| 1991 - Estonia, North Korea, South Korea, Latvia, Lithuania, the Marshall Islands and Micronesia join the United Nations. | |
| 1980 - After weeks of strikes at the Lenin Shipyard in Gdansk, Poland, the nationwide independent trade union Solidarity is established. | |
| 1978 - The Camp David Accords are signed by Israel and Egypt. | |
| 1948 - The Nizam of Hyderabad surrenders his sovereignty over the Hyderabad State and joins the Indian Union. |
Office Holidays provides calendars with dates and information on public holidays and bank holidays in key countries around the world.
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