Today's date
Sunday, September 21, 2025
Sunday, September 21, 2025 falls on a Sunday. It is day 264 of the year, ISO week 38, in Q3.
Today's date
Sunday, September 21, 2025 falls on a Sunday. It is day 264 of the year, ISO week 38, in Q3.
Latest updates
Day facts
September 21, 2025 is day 264 of 365, ISO week 38, in Q3. The moon is New Moon and the zodiac sign is Virgo.
Sunday, September 21, 2025 combines practical calendar facts with a wider view of the day: 2013: Unidentified gunmen began a three-day attack on the upmarket Westgate shopping mall in Nairobi, Kenya, resulting in the deaths of 67 people with at least another 175 wounded.. Use it to check the date, plan across time zones, and scan the observances and historical markers attached to September 21.
Share September 21 as a quick date, history, and timezone reference.
On this day
Unidentified gunmen began a three-day attack on the upmarket Westgate shopping mall in Nairobi, Kenya, resulting in the deaths of 67 people with at least another 175 wounded.
American rock band Green Day released their seventh studio album, American Idiot.
Several British Muslim youths in Peterborough, England, murdered 17-year-old Ross Parker, leading to debate over whether the British media failed to cover racially motivated crimes with white victims.
A 7.7 Mw earthquake struck Jiji, Taiwan, killing 2,415 people, injuring more than 11,000 others and causing about NT$300 billion (US$10 billion) in damage across the island.
The Defense of Marriage Act was passed by the United States Congress, prohibiting federal recognition of same-sex marriage, while allowing states to adopt any marital definition of their choosing.
The Soviet Union's Zond 5 landed in the Indian Ocean, becoming the first spacecraft to safely return to Earth after travelling around the Moon.
Portugal accepted a diplomatic mission from Southern Rhodesia despite objections by Britain, which had required the colony to implement black majority rule as a condition of independence.
The first section of Interstate 80 in Iowa opened in the Des Moines metropolitan area.
News pulse