Thursday, August 21, 2025

Thursday, August 21, 2025 falls on a Thursday. It is day 233 of the year, ISO week 34, in Q3.

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Thursday, August 21

August 21, 2025 is day 233 of 365, ISO week 34, in Q3. The moon is Waning Crescent and the zodiac sign is Leo.

Day of year233
ISO week34
QuarterQ3
Days left132

Sun and Moon Cycles

Moon phase
Waning Crescent
Lunar age
27.1 days
Illumination
7%
Season
Summer in the Northern Hemisphere, winter in the Southern Hemisphere

Zodiac and Holidays

Zodiac
Leo
Observances
No major fixed observance in the built-in calendar
Shareable URL
/date/2025-08-21

Today's Celebrations

August 21
Observance Abraham of Smolensk (Eastern Orthodox Church)
Observance Euprepius of Verona
Observance Maximilian of Antioch
Observance Our Lady of Knock
Observance Pope Pius X
Observance Sidonius Apollinaris
Observance August 21 (Eastern Orthodox liturgics)
Observance Ninoy Aquino Day (Philippines)

Daily Briefing

Local brief

Thursday, August 21, 2025 combines practical calendar facts with a wider view of the day: 2015: Passengers on a Thalys train from Amsterdam to Paris confronted and subdued an attacker who attempted a mass shooting.. Use it to check the date, plan across time zones, and scan the observances and historical markers attached to August 21.

Share August 21 as a quick date, history, and timezone reference.

History for August 21

10 events

Passengers on a Thalys train from Amsterdam to Paris confronted and subdued an attacker who attempted a mass shooting.

Syrian civil war: Areas controlled by the Syrian opposition in Ghouta, Damascus, were attacked by rockets (launcher pictured) containing sarin, killing at least 281 people.

BioShock was released in North America, becoming a critical success and a demonstration of video games as an art form.

A limnic eruption of Lake Nyos in Cameroon released a cloud of carbon dioxide, suffocating 1,746 people and 3,500 livestock.

Six people were killed during an escape attempt and riot at San Quentin State Prison in California; the subsequent trial of six inmates was the longest in state history at the time.

South Vietnamese special forces loyal to Ngô Đình Nhu, the brother of President Ngô Đình Diệm, raided and vandalised Buddhist pagodas (one pictured) across the country, arresting thousands and leaving hundreds dead.

American physicist Harry Daghlian accidentally dropped a tungsten carbide brick onto a plutonium bomb core, exposing himself to neutron radiation and later becoming the first Manhattan Project fatality due to a criticality accide...

World War II: A combined Canadian–Polish force captured the town of Falaise, France, in the final offensive of the Battle of Normandy.

News of the day

Wikimedia Current Events
Israeli–Palestinian conflict Gaza war Israeli bombing of the Gaza Strip At least 70 Palestinians are killed by Israeli airstrikes, including eight people in a house in... Wikimedia Current Events An Israeli military database indicates that 83% of deaths in Gaza have been civilians. The Israeli military initially confirmed the database to the media but later dispu... Wikimedia Current Events Palestinian political violence A Palestinian gunman shoots an Israeli settler who was engaging in shepherding activities in the Israeli-occupied West Bank. (The Jerusale... Wikimedia Current Events Colombian conflict 2025 August FARC attacks At least six people are killed and more than 60 others are injured in a terrorist car bombing targeting the Marco Fidel Suár... Wikimedia Current Events At least 12 Colombian police officers are killed and three others are injured when FARC dissidents shoot down a helicopter during an anti-narcotics operation in Amalfi,... Wikimedia Current Events Russian invasion of Ukraine Attacks on civilians in the Russian invasion of Ukraine The Russian Armed Forces conduct a combined attack overnight, launching at least 570... Wikimedia Current Events War on drugs, United States–Venezuela relations U.S. president Donald Trump deploys three guided-missile destroyers off the coast of Venezuela after the U.S. governmen... Wikimedia Current Events 2025 Pakistan floods At least 21 people are killed in flooding caused by heavy monsoons in Pakistan, including eleven in Gilgit-Baltistan and ten in Karachi, as the deat... Wikimedia Current Events