Tuesday, August 18, 2026 is a Tuesday. It is day 230 of 2026 (63% through the year), ISO week 34, in Q3.
Calendar Specifications
On August 18, 2026, we mark the feast days of several saints, including Agapitus of Palestrina, Alberto Hurtado, Daig of Inniskeen, Evan, and Fiacre. The moon is in its Waxing Crescent phase, and the zodiac sign is Leo. As we look back at historical events, we note that on this day in 1966, the Battle of Long Tan took place during the Vietnam War, where Australian troops held off a larger Viet Cong unit until reinforcements arrived. In recent years, August 18 has also been marked by significant events, including the 2017 Islamist terrorist attack in Turku, Finland, which resulted in two fatalities and eight injuries. In 2008, Pakistani President Pervez Musharraf resigned under pressure, and in 1983, Hurricane Alicia made landfall in Texas, causing $...
On August 18, 2026, we mark the feast days of several saints, including Agapitus of Palestrina, Alberto Hurtado, Daig of Inniskeen, Evan, and Fiacre.
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Historical Milestones
Two people were fatally stabbed and eight others wounded by a rejected asylum seeker in an Islamist terrorist attack in Turku, Finland.
Asylum seeker →Pakistani president Pervez Musharraf resigned under pressure from a movement to impeach him.
Pervez Musharraf →Hurricane Alicia made landfall near Galveston, Texas, causing $3 billion in damage and 21 fatalities.
Hurricane Alicia →Vietnam War: Members of the 6th Battalion of the Royal Australian Regiment were surrounded by a much larger Viet Cong unit at the Battle of Long Tan (helicopter pictured), but held them off for several hours until reinforcements...
Vietnam War →East German Communist Party member Hildegard Trabant was killed while attempting to cross the Berlin Wall.
Socialist Unity Party of Germany →Australia won the fifth Test of the 1948 Ashes series, becoming the first Test cricket team to go undefeated in England, earning them the nickname "The Invincibles".
Fifth Test, 1948 Ashes series →World War II: Amid a Soviet invasion of Japanese-held Sakhalin, Japanese police massacred 18 Koreans in Kamishisuka.
World War II →Second World War: During the Battle of Britain, the Luftwaffe made an all-out effort to destroy RAF Fighter Command, with both sides combined losing more aircraft on this day than at any other point during the campaign.
World War II →A lightning strike started the Blackwater Fire (pictured) in Shoshone National Forest, Wyoming, consuming 1,700 acres (7 km2) of old-growth forest and killing 15 firefighters.
Blackwater Fire of 1937 →The Nineteenth Amendment to the United States Constitution was ratified, guaranteeing women's suffrage in the country.
Nineteenth Amendment to the United States Constitution →Calculate business days and elapsed calendar time between this date and any other.
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Questions & Answers
Tuesday, August 18, 2026 falls on a Tuesday.
37 days ago (1 month, 6 days ago). It is day 230 of 2026 with 135 days remaining in the year.
In Roman numerals, Tuesday, August 18, 2026 is written as XVIII.VIII.MMXXVI (Day.Month.Year format).
The moon phase for this date is Waxing Crescent (approx. 27% illuminated). The astrological sun sign is Leo.