Clocks Go Back UK 2026
The clocks in the UK go back one hour at 2am BST on Sunday, October 25, 2026, which is 01:00 UTC. British Summer Time ends and the UK returns to GMT.
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About Autumn Equinox 2027
The September equinox is the moment the Sun crosses the celestial equator heading south. It marks the start of astronomical autumn in the Northern Hemisphere and spring in the Southern Hemisphere.
In 2027 the equinox is on Thursday, September 23, at 06:02 UTC, according to the U.S. Naval Observatory. That is 7:02am BST in the UK and 2:02am EDT in New York.
Around the equinox, day and night are close to equal length across the world.
Tags
- autumn equinox
- fall equinox
- September equinox
- astronomy
- 2027 seasons
Frequently asked questions
The autumn equinox is on Thursday, September 23, 2027, at 06:02 UTC.
The moment the Sun crosses the celestial equator heading south. It marks the start of astronomical autumn in the Northern Hemisphere.
7:02am BST in the UK and 2:02am EDT in New York.
Yes. Fall is the American English name for autumn.
No. In the Southern Hemisphere the September equinox marks the start of spring.
Related countdowns
Daylight Saving Time Ends 2026
Daylight saving time ends in most of the US at 2am local time on Sunday, November 1, 2026. This countdown uses US Eastern Time, which is 06:00 UTC.
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Winter Solstice 2026
The shortest day in the northern hemisphere and the astronomical start of winter.
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Perihelion 2027
Perihelion 2027, when Earth is closest to the Sun in its orbit, is on Sunday, January 3, 2027, at 02:33 UTC, according to the U.S. Naval Observatory.
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