Thursday, September 17, 2026

Thursday, September 17, 2026 falls on a Thursday. It is day 260 of the year, ISO week 38, in Q3.

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Thursday, September 17

September 17, 2026 is day 260 of 365, ISO week 38, in Q3. The moon is First Quarter and the zodiac sign is Virgo.

Day of year260
ISO week38
QuarterQ3
Days left105

Sun and Moon Cycles

Moon phase
First Quarter
Lunar age
5.6 days
Illumination
32%
Season
Summer in the Northern Hemisphere, winter in the Southern Hemisphere

Zodiac and Holidays

Zodiac
Virgo
Observances
No major fixed observance in the built-in calendar
Shareable URL
/date/2026-09-17

Today's Celebrations

September 17
Observance Australian Citizenship Day
Observance Albert of Vercelli
Observance Ariadne of Phrygia
Observance Blessed Cecilia Eusepi
Observance Stanislaus Papczyński
Observance Hildegard of Bingen
Observance Lambert
Observance Robert Bellarmine

Daily Briefing

Local brief

Thursday, September 17, 2026 combines practical calendar facts with a wider view of the day: 2018: The Israeli Air Force conducted missile strikes that hit multiple targets in western Syria; Syrian air defences responding to the strikes accidentally downed a Russian plane.. Use it to check the date, plan across time zones, and scan the observances and historical markers attached to September 17.

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History for September 17

10 events

The Israeli Air Force conducted missile strikes that hit multiple targets in western Syria; Syrian air defences responding to the strikes accidentally downed a Russian plane.

Adbusters, a Canadian anti-consumerist publication, organized a protest against corporate influence on democracy at Zuccotti Park in New York City that became known as Occupy Wall Street.

American president George W. Bush delivered remarks at the Islamic Center of Washington (pictured) condemning Islamophobia in the aftermath of the September 11 attacks.

Four years after AIDS was first identified in the United States, Ronald Reagan publicly acknowledged AIDS (video featured) for the first time.

Solidarity, a Polish trade union, was founded as the first independent labor union in an Eastern Bloc country.

The Jordanian army entered Amman as part of operations to oust Palestinian fedayeen from the country in events later known as Black September (smoke over city pictured).

NASA announced the Next Nine astronauts selected for the purpose of landing on the moon.

Tintin in Tibet, the twentieth volume of The Adventures of Tintin by the Belgian cartoonist Hergé and which he regarded as his favourite in the series, began serialisation.

News of the day

Wikimedia Current Events

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