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Fall Equinox 2025: Start Dates, Clock Changes, and What to Expect | Feud Erupts Over Rob Reiner Oscars Tribute | Social Security Administration Changes Impacting Beneficiaries | SAG-AFTRA & WGA Negotiations Extend Amid Key Issues | Powerball Wins in New York and Ohio | Midwest News Roundup: Supporting Local Journalism and Farmland Preservation | Severe Storms Threaten Michigan: Tornado Watch Issued for March 2026 | Arkansas Governor Announces Turning Point USA Partnership | Wind Advisory Issued for Columbia Basin and Blue Mountain Foothills | Fall Equinox 2025: Start Dates, Clock Changes, and What to Expect | Feud Erupts Over Rob Reiner Oscars Tribute | Social Security Administration Changes Impacting Beneficiaries | SAG-AFTRA & WGA Negotiations Extend Amid Key Issues | Powerball Wins in New York and Ohio | Midwest News Roundup: Supporting Local Journalism and Farmland Preservation | Severe Storms Threaten Michigan: Tornado Watch Issued for March 2026 | Arkansas Governor Announces Turning Point USA Partnership | Wind Advisory Issued for Columbia Basin and Blue Mountain Foothills

News / Weather

Fall Equinox 2025: Start Dates, Clock Changes, and What to Expect

As summer winds down, it's time to prepare for the shift into fall. Here's a comprehensive guide to the start of the fall season, the autumnal equinox, and when to set your clocks back.

Summer's almost over: What to know about the first day of fall and the equinox
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Fall Equinox 2025: Start Dates, Clock Changes, and What to Expect Image via Yahoo News

Key Insights

  • Meteorological fall begins on September 1st, based on temperature patterns.
  • The autumnal equinox, marking astronomical fall, occurs on September 22nd at 2:19 p.m. ET.
  • Daylight saving time ends on November 2nd, when clocks are set back an hour.
  • The UK's autumn equinox is on September 22nd at approximately 7.20 pm BST, with clocks going back on October 26th.
  • Total solar radiation decreases as the sun angle lowers, leading to cooler temperatures.

In-Depth Analysis

Meteorological fall, defined by consistent temperature patterns, starts on September 1st and lasts until November 30th. This differs from astronomical fall, which is determined by the Earth's and sun's positions. The autumnal equinox on September 22nd marks the moment the Sun crosses the celestial equator, resulting in nearly equal daylight and darkness. After the equinox, days become shorter until the winter solstice on December 21st.

In the UK, the clocks go back one hour at 2 a.m. on the final Sunday of October (October 26th), returning to Greenwich Mean Time (GMT). This adjustment maximizes daylight hours during the summer months, although its benefits are debated.

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FAQ

What is the difference between meteorological and astronomical fall?

Meteorological fall is based on temperature patterns and starts on September 1st, while astronomical fall is based on the Earth's position relative to the sun, starting with the autumnal equinox.

When do the clocks go back for daylight saving time?

In the US, clocks go back on November 2nd. In the UK, clocks go back on October 26th.

What is the autumnal equinox?

The autumnal equinox is when the Sun crosses the celestial equator, resulting in nearly equal amounts of daylight and darkness.

Takeaways

  • Understanding the different markers of the fall season helps you prepare for changing weather patterns and adjust your routines accordingly. Knowing when to expect shorter days and cooler temperatures allows for better planning of outdoor activities and energy usage. Remember to set your clocks back on November 2nd (US) or October 26th (UK) and stay updated on weather forecasts for potential storms.

Discussion

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Disclaimer

This article was compiled by Yanuki using publicly available data and trending information. The content may summarize or reference third-party sources that have not been independently verified. While we aim to provide timely and accurate insights, the information presented may be incomplete or outdated.

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