Astronomical autumn begins in the north · spring in the south

September Equinox 2026 — exact time

Wednesday, 23 September 2026, 00:05 UTC

Day and night are nearly equal again — astronomical autumn begins in the north, spring in the south.

66days

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--min

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What happens at this instant

The Sun’s apparent longitude crosses 180° and it stands directly over the equator, moving south. Day and night are nearly— not exactly — equal everywhere: refraction and the Sun’s own width mean the true equal-day date (the “equilux”) falls a few days to one side of the equinox — which side depends on your hemisphere. It is a single worldwide moment: the same instant, whatever your clock says locally — which is what the city table below converts.

September Equinox — exact time, every year 2015–2040

Published minutes, UT (USNO, Astronomical Applications Department).

Year	Date	Time (UTC)
2015	Wed 23 September	08:20
2016	Thu 22 September	14:21
2017	Fri 22 September	20:02
2018	Sun 23 September	01:54
2019	Mon 23 September	07:50
2020	Tue 22 September	13:31
2021	Wed 22 September	19:21
2022	Fri 23 September	01:04
2023	Sat 23 September	06:50
2024	Sun 22 September	12:44
2025	Mon 22 September	18:19
2026	Wed 23 September	00:05
2027	Thu 23 September	06:02
2028	Fri 22 September	11:45
2029	Sat 22 September	17:38
2030	Sun 22 September	23:27
2031	Tue 23 September	05:15
2032	Wed 22 September	11:11
2033	Thu 22 September	16:51
2034	Fri 22 September	22:39
2035	Sun 23 September	04:39
2036	Mon 22 September	10:23
2037	Tue 22 September	16:13
2038	Wed 22 September	22:02
2039	Fri 23 September	03:49
2040	Sat 22 September	09:45

The september equinox 2026 in 132 cities — local time & day length

One worldwide instant, converted to each city’s clock (including DST), with the length of that day — sunrise to sunset — computed for the city’s own coordinates.

USA

City	Local date & time	Day length that day
New York	Tue 22 Sept, 20:05	12 h 10 m
Los Angeles	Tue 22 Sept, 17:05	12 h 08 m
Chicago	Tue 22 Sept, 19:05	12 h 09 m
Houston	Tue 22 Sept, 19:05	12 h 08 m
Phoenix	Tue 22 Sept, 17:05	12 h 08 m
Philadelphia	Tue 22 Sept, 20:05	12 h 09 m
San Antonio	Tue 22 Sept, 19:05	12 h 08 m
San Diego	Tue 22 Sept, 17:05	12 h 09 m
Dallas	Tue 22 Sept, 19:05	12 h 08 m
Denver	Tue 22 Sept, 18:05	12 h 09 m
Seattle	Tue 22 Sept, 17:05	12 h 10 m
Miami	Tue 22 Sept, 20:05	12 h 08 m
San Francisco	Tue 22 Sept, 17:05	12 h 09 m
Boston	Tue 22 Sept, 20:05	12 h 10 m
Atlanta	Tue 22 Sept, 20:05	12 h 09 m
Washington, D.C.	Tue 22 Sept, 20:05	12 h 10 m
Minneapolis	Tue 22 Sept, 19:05	12 h 10 m
Detroit	Tue 22 Sept, 20:05	12 h 10 m
Las Vegas	Tue 22 Sept, 17:05	12 h 09 m
Portland	Tue 22 Sept, 17:05	12 h 10 m
Salt Lake City	Tue 22 Sept, 18:05	12 h 09 m
Orlando	Tue 22 Sept, 20:05	12 h 08 m
New Orleans	Tue 22 Sept, 19:05	12 h 08 m
Nashville	Tue 22 Sept, 19:05	12 h 08 m
Kansas City	Tue 22 Sept, 19:05	12 h 09 m
St. Louis	Tue 22 Sept, 19:05	12 h 09 m
Pittsburgh	Tue 22 Sept, 20:05	12 h 09 m
Cleveland	Tue 22 Sept, 20:05	12 h 09 m
Charlotte	Tue 22 Sept, 20:05	12 h 09 m
Indianapolis	Tue 22 Sept, 20:05	12 h 09 m
Anchorage	Tue 22 Sept, 16:05	12 h 14 m
Honolulu	Tue 22 Sept, 14:05	12 h 07 m

USA · Dark-sky

City	Local date & time	Day length that day
Sedona	Tue 22 Sept, 17:05	12 h 08 m
Moab	Tue 22 Sept, 18:05	12 h 08 m
Bryce Canyon	Tue 22 Sept, 18:05	12 h 09 m
Death Valley	Tue 22 Sept, 17:05	12 h 08 m
Big Bend	Tue 22 Sept, 19:05	12 h 08 m
Mauna Kea	Tue 22 Sept, 14:05	12 h 07 m
Cherry Springs	Tue 22 Sept, 20:05	12 h 10 m
Outer Banks	Tue 22 Sept, 20:05	12 h 09 m

Canada

City	Local date & time	Day length that day
Toronto	Tue 22 Sept, 20:05	12 h 10 m
Vancouver	Tue 22 Sept, 17:05	12 h 10 m
Montréal	Tue 22 Sept, 20:05	12 h 10 m
Calgary	Tue 22 Sept, 18:05	12 h 11 m
Edmonton	Tue 22 Sept, 18:05	12 h 11 m
Winnipeg	Tue 22 Sept, 19:05	12 h 11 m
Yellowknife	Tue 22 Sept, 18:05	12 h 16 m

Mexico

City	Local date & time	Day length that day
Mexico City	Tue 22 Sept, 18:05	12 h 07 m
Guadalajara	Tue 22 Sept, 18:05	12 h 07 m
Cancún	Tue 22 Sept, 19:05	12 h 07 m

Cuba

City	Local date & time	Day length that day
Havana	Tue 22 Sept, 20:05	12 h 07 m

Panama

City	Local date & time	Day length that day
Panama City	Tue 22 Sept, 19:05	12 h 06 m

Puerto Rico

City	Local date & time	Day length that day
San Juan	Tue 22 Sept, 20:05	12 h 07 m

Brazil

City	Local date & time	Day length that day
São Paulo	Tue 22 Sept, 21:05	12 h 06 m
Rio de Janeiro	Tue 22 Sept, 21:05	12 h 06 m
Brasília	Tue 22 Sept, 21:05	12 h 06 m

Argentina

City	Local date & time	Day length that day
Buenos Aires	Tue 22 Sept, 21:05	12 h 08 m
Ushuaia	Tue 22 Sept, 21:05	12 h 10 m

Chile

City	Local date & time	Day length that day
Santiago	Tue 22 Sept, 21:05	12 h 08 m

Chile · Dark-sky

City	Local date & time	Day length that day
Atacama Desert	Tue 22 Sept, 21:05	12 h 07 m

Peru

City	Local date & time	Day length that day
Lima	Tue 22 Sept, 19:05	12 h 07 m

Colombia

City	Local date & time	Day length that day
Bogotá	Tue 22 Sept, 19:05	12 h 07 m

Ecuador

City	Local date & time	Day length that day
Quito	Tue 22 Sept, 19:05	12 h 06 m

City	Local date & time	Day length that day
London	Wed 23 Sept, 01:05	12 h 08 m
Edinburgh	Wed 23 Sept, 01:05	12 h 10 m
Manchester	Wed 23 Sept, 01:05	12 h 09 m

Ireland

City	Local date & time	Day length that day
Dublin	Wed 23 Sept, 01:05	12 h 09 m

France

City	Local date & time	Day length that day
Paris	Wed 23 Sept, 02:05	12 h 08 m

Germany

City	Local date & time	Day length that day
Berlin	Wed 23 Sept, 02:05	12 h 09 m
Munich	Wed 23 Sept, 02:05	12 h 08 m

Spain

City	Local date & time	Day length that day
Madrid	Wed 23 Sept, 02:05	12 h 07 m
Barcelona	Wed 23 Sept, 02:05	12 h 08 m

Italy

City	Local date & time	Day length that day
Rome	Wed 23 Sept, 02:05	12 h 07 m
Milan	Wed 23 Sept, 02:05	12 h 08 m

Netherlands

City	Local date & time	Day length that day
Amsterdam	Wed 23 Sept, 02:05	12 h 09 m

Belgium

City	Local date & time	Day length that day
Brussels	Wed 23 Sept, 02:05	12 h 08 m

Switzerland

City	Local date & time	Day length that day
Zürich	Wed 23 Sept, 02:05	12 h 08 m

Austria

City	Local date & time	Day length that day
Vienna	Wed 23 Sept, 02:05	12 h 08 m

Czechia

City	Local date & time	Day length that day
Prague	Wed 23 Sept, 02:05	12 h 09 m

Poland

City	Local date & time	Day length that day
Warsaw	Wed 23 Sept, 02:05	12 h 09 m

Denmark

City	Local date & time	Day length that day
Copenhagen	Wed 23 Sept, 02:05	12 h 10 m

Norway

City	Local date & time	Day length that day
Oslo	Wed 23 Sept, 02:05	12 h 11 m

Sweden

City	Local date & time	Day length that day
Stockholm	Wed 23 Sept, 02:05	12 h 10 m

Finland

City	Local date & time	Day length that day
Helsinki	Wed 23 Sept, 03:05	12 h 11 m

Iceland

City	Local date & time	Day length that day
Reykjavík	Wed 23 Sept, 00:05	12 h 12 m

Norway · Aurora

City	Local date & time	Day length that day
Tromsø	Wed 23 Sept, 02:05	12 h 16 m

Portugal

City	Local date & time	Day length that day
Lisbon	Wed 23 Sept, 01:05	12 h 07 m

Greece

City	Local date & time	Day length that day
Athens	Wed 23 Sept, 03:05	12 h 07 m

Türkiye

City	Local date & time	Day length that day
Istanbul	Wed 23 Sept, 03:05	12 h 07 m

Russia

City	Local date & time	Day length that day
Moscow	Wed 23 Sept, 03:05	12 h 10 m

Ukraine

City	Local date & time	Day length that day
Kyiv	Wed 23 Sept, 03:05	12 h 09 m

Egypt

City	Local date & time	Day length that day
Cairo	Wed 23 Sept, 03:05	12 h 07 m

Morocco

City	Local date & time	Day length that day
Casablanca	Wed 23 Sept, 01:05	12 h 06 m

Nigeria

City	Local date & time	Day length that day
Lagos	Wed 23 Sept, 01:05	12 h 06 m

Kenya

City	Local date & time	Day length that day
Nairobi	Wed 23 Sept, 03:05	12 h 07 m

Ethiopia

City	Local date & time	Day length that day
Addis Ababa	Wed 23 Sept, 03:05	12 h 06 m

South Africa

City	Local date & time	Day length that day
Johannesburg	Wed 23 Sept, 02:05	12 h 08 m
Cape Town	Wed 23 Sept, 02:05	12 h 09 m

Namibia · Dark-sky

City	Local date & time	Day length that day
Windhoek	Wed 23 Sept, 02:05	12 h 07 m

UAE

City	Local date & time	Day length that day
Dubai	Wed 23 Sept, 04:05	12 h 07 m

Saudi Arabia

City	Local date & time	Day length that day
Riyadh	Wed 23 Sept, 03:05	12 h 06 m

Israel

City	Local date & time	Day length that day
Tel Aviv	Wed 23 Sept, 03:05	12 h 07 m

Iran

City	Local date & time	Day length that day
Tehran	Wed 23 Sept, 03:35	12 h 08 m

Japan

City	Local date & time	Day length that day
Tokyo	Wed 23 Sept, 09:05	12 h 08 m
Osaka	Wed 23 Sept, 09:05	12 h 08 m

South Korea

City	Local date & time	Day length that day
Seoul	Wed 23 Sept, 09:05	12 h 08 m

China

City	Local date & time	Day length that day
Beijing	Wed 23 Sept, 08:05	12 h 08 m
Shanghai	Wed 23 Sept, 08:05	12 h 08 m

Hong Kong

City	Local date & time	Day length that day
Hong Kong	Wed 23 Sept, 08:05	12 h 07 m

Taiwan

City	Local date & time	Day length that day
Taipei	Wed 23 Sept, 08:05	12 h 07 m

India

City	Local date & time	Day length that day
Delhi	Wed 23 Sept, 05:35	12 h 07 m
Mumbai	Wed 23 Sept, 05:35	12 h 07 m
Bengaluru	Wed 23 Sept, 05:35	12 h 07 m
Kolkata	Wed 23 Sept, 05:35	12 h 07 m
Chennai	Wed 23 Sept, 05:35	12 h 06 m

Pakistan

City	Local date & time	Day length that day
Karachi	Wed 23 Sept, 05:05	12 h 07 m

Bangladesh

City	Local date & time	Day length that day
Dhaka	Wed 23 Sept, 06:05	12 h 07 m

Thailand

City	Local date & time	Day length that day
Bangkok	Wed 23 Sept, 07:05	12 h 06 m

Singapore

City	Local date & time	Day length that day
Singapore	Wed 23 Sept, 08:05	12 h 07 m

Malaysia

City	Local date & time	Day length that day
Kuala Lumpur	Wed 23 Sept, 08:05	12 h 06 m

Indonesia

City	Local date & time	Day length that day
Jakarta	Wed 23 Sept, 07:05	12 h 07 m

Philippines

City	Local date & time	Day length that day
Manila	Wed 23 Sept, 08:05	12 h 06 m

Vietnam

City	Local date & time	Day length that day
Ho Chi Minh City	Wed 23 Sept, 07:05	12 h 07 m

Australia

City	Local date & time	Day length that day
Sydney	Wed 23 Sept, 10:05	12 h 08 m
Melbourne	Wed 23 Sept, 10:05	12 h 09 m
Brisbane	Wed 23 Sept, 10:05	12 h 08 m
Perth	Wed 23 Sept, 08:05	12 h 08 m
Adelaide	Wed 23 Sept, 09:35	12 h 08 m

New Zealand

City	Local date & time	Day length that day
Auckland	Wed 23 Sept, 12:05	12 h 08 m
Wellington	Wed 23 Sept, 12:05	12 h 09 m
Christchurch	Wed 23 Sept, 12:05	12 h 09 m

New Zealand · Dark-sky

City	Local date & time	Day length that day
Queenstown	Wed 23 Sept, 12:05	12 h 09 m

City links open that city’s live sunrise/sunset page. Day lengths are computed by LEV’s own solar geometry (the engine behind those pages) for the event’s local calendar day.

Where this time comes from

The instant and the year table are the published minutes of the USNO, Astronomical Applications Department (UT), frozen 2026-07-17. LEV computes each instant independently as a cross-check (Meeus’s standard algorithm): across all 104 published events the two agree within ±91 seconds, and the four 2026 instants were further verified against JPL Horizons (DE441)to ~31 s. The countdown ticks on the computed instant’s seconds. Beyond the early 2030s every published minute — anyone’s — inherits the uncertainty of Earth-rotation (ΔT) predictions and can shift by up to about a minute as the years arrive.

September Equinox 2026 — exact time

What happens at this instant

September Equinox — exact time, every year 2015–2040

The september equinox 2026 in 132 cities — local time & day length

Where this time comes from

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