September Equinox 2025
The September equinox of 2025 is on Monday, September 22, 2025 at 18:19 UTC, when the Sun reaches 0°00' Libra. It starts autumn in the Northern Hemisphere and spring in the Southern Hemisphere. Your time:
Status as of November 2, 2026: 405 days ago.
What time is the September equinox 2025?
At 18:19 UTC on September 22, 2025: Mon, Sep 22, 11:19 AM in Los Angeles, Mon, Sep 22, 02:19 PM in New York, Mon, Sep 22, 07:19 PM in London.
What date is the September equinox 2025 where I live?
It depends on the time zone: September 22 in Los Angeles, New York, London, India; September 23 in Sydney.
Is the September equinox the first day of autumn?
Astronomically, yes in the Northern Hemisphere and no in the Southern, where the September equinox on September 22, 2025 starts spring; weather services often count seasons by whole months instead.
How long is the season that starts at the September equinox 2025?
89 days 21 hours: autumn in the north (spring in the south) runs until the December solstice on December 21, 2025 at 15:03 UTC.
Why is the September equinox 2025 at a different time than in 2024?
It comes 5 h 36 min later on the clock than in 2024 (September 22, 2024, 12:43 UTC), because the 365-day calendar year is about a quarter of a day shorter than the solar year.
Are day and night equal on the September equinox 2025?
Not quite: from sunrise to sunset on September 22, 2025 it is 12 h 12 min in London, 12 h 09 min in New York, 12 h 07 min in Mexico City, 12 h 06 min in Bogotá, 12 h 07 min in São Paulo, 12 h 06 min in Sydney, a few minutes over 12 hours because the atmosphere bends sunlight over the horizon and sunrise counts from the Sun’s upper edge.
What does the Sun entering Libra mean in astrology?
It is the Libra ingress: astrologers cast a chart for 18:19 UTC on September 22, 2025 and read it for the season ahead, and in 2025 that chart has the Moon at 10°32' Libra (new moon, 1% lit).
Local clock readings
| Place | Local time |
|---|---|
| UTC | September 22, 2025, 18:19 UTC |
| Los Angeles | Mon, Sep 22, 11:19 AM |
| New York | Mon, Sep 22, 02:19 PM |
| London | Mon, Sep 22, 07:19 PM |
| India | Mon, Sep 22, 11:49 PM |
| Sydney | Tue, Sep 23, 04:19 AM |
The sky at the September equinox 2025
| Body | Position |
|---|---|
| Sun | ♎︎ 0°00' Libra |
| Moon | ♎︎ 10°32' Libra |
| Mercury | ♎︎ 7°36' Libra |
| Venus | ♍︎ 3°57' Virgo |
| Mars | ♏︎ 0°17' Scorpio |
| Jupiter | ♋︎ 21°22' Cancer |
| Saturn | ♓︎ 28°23' Pisces R |
| Uranus | ♊︎ 1°20' Gemini R |
| Neptune | ♈︎ 0°46' Aries R |
| Pluto | ♒︎ 1°28' Aquarius R |
| Moon phase | new moon, 1% lit |
Geocentric tropical positions at the exact instant; R = retrograde.
Day length on September 22, 2025
| City | Daylight |
|---|---|
| London | 12 h 12 min |
| New York | 12 h 09 min |
| Mexico City | 12 h 07 min |
| Bogotá | 12 h 06 min |
| São Paulo | 12 h 07 min |
| Sydney | 12 h 06 min |
Sunrise to sunset on that calendar date at each city, computed for the Sun’s upper edge with standard refraction.
The Sun enters Libra
Libra is a cardinal air sign ruled by Venus; its keywords: diplomatic, aesthetic, fair. The Sun’s 30 days in Libra start at this instant.
Retrograde at the September equinox 2025: Saturn, Uranus, Neptune, Pluto.
Data: seasons/2025.json (CC0 JSON).