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Today is: August 21
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For the current year, this month includes: 668 events.
Events In September 2025
Database of events, awareness days, holidays, and promotions occurring in September of this year.
September Events
Collect Rocks (Rockhound) Day: September 1...
Daily
Rock collecting has been a favorite pastime for hundreds of years, and the most fertile hunting ground is in the mountains. Amateur geologists and professional geologists can tell a lot about an area by t...
September
Guacamole Day, Ntl.: September 16
Daily
There are two unofficial events celebrating guacamole in the calendar: Guacamole Day on September 16 and Spicy Guacamole Day on November 14 each year. Neither event has a sponsor, and both appeared online...
September
Independence Day (MX)(1810): September 16
Daily
September 16 is Independence Day in Mexico. In 1810, Mexicans ended the Spanish rule and colonization of their land, which had lasted for over three centuries. The leader of the uprising was a small tow...
September
Independence Day (PG)(1975): September 16
Daily
On September 16, 1975, Papa New Guinea gained its independence from Australia. Independence Day is a national holiday.
September
Information Technology Professionals Day:...
Daily
National Information Professionals (IT) Day was created in 2014 to honor the oft unsung heroes of the IT department. Information Technology is essential to business today. Websites, e-commerce, security,...
September
Interventional Cardiology, Intl. Day for:...
Daily
The United Nations General Assembly reaffirmed its commitment to the 2030 Agenda for Sustainable Development, which includes achieving universal health coverage by 2030. It recalled its resolutions focusi...
September
Jotijot, Gurgadi (S)(1574/1581): September...
Daily
Amar Das Ji, the third of ten gurus, died on this day in 1574. Sri Guru Ram Das Ji, the fourth guru, died on this day in 1581.
September
Malaysia Day (MY)(1963): September 16
Daily
On September 16, 1963, the Malaysian Federation was founded. Today is a national holiday.
September
Mayflower Day (1620): September 16
Daily
Mayflower Day on September 16, 1602, commemorates the departure of the Mayflower from Plymouth, England, bound for America. On the Mayflower were 102 passengers seeking religious freedom in the New World.
September
Mobility Week, European: September 16-22
Weekly
Created in 2002, European Mobility Week seeks to improve public health and quality of life through promoting clean mobility and sustainable urban transport. Each year has a different theme, with various m...
September
Oklahoma Land Race (1893): September 16
Daily
The Oklahoma Land Race was held on September 16, 1893. Otherwise known as the Land Run of 1893 or the Cherokee Strip Land Run, it would become the most extensive land run in United States history. More t...
September
Owain Glyndŵr Day (1400): September 16
Daily
Owain Glyndŵr (1359 - 1415) was a resistance leader in Wales. His day, September 16, is the day he was named Prince of Wales in 1400.
September
Ozone Layer Day, World (1987): September 1...
Daily
World Ozone Layer Day raises awareness about the condition of the ozone layer. It commemorates the signing of the Montreal Protocol on Substances that Deplete the Ozone Layer on this day in 1987 (resoluti...
September
Play-Doh Day, Ntl. (1955): September 16
Daily
National Play-Doh Day honors the iconic modeling clay-branded Play-Doh on the anniversary of its release as a toy, September 16, 1955. Originally marketed as a wallpaper cleaner in the 1930s, it was rec...
September
Prinsjesdag, Budget Day, Prince's Day (NL)...
Daily
Prinsjesdag, Budget Day, or Prince's Day, marks the official opening of parliament in the Netherlands. The day includes festivities, a speech from the King, and a setting of the nation's budget. Annually...
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