Dec 9, 2025 · The fall equinox and the first day of autumn arrive on Tuesday, September 22, 2026, at 8:04 P.M. EDT in the Northern Hemisphere. The equinox occurs at the same moment worldwide.

2 days ago · Astronomical fall starts with the autumnal equinox and ends the day before the winter solstice. Meteorological fall runs September 1 to November 30, helping track seasonal weather …

Sep 23, 2025 · It’s not an all-day event such as a birthday or holiday. The equinox is the moment the Sun crosses the celestial equator—that imaginary line in the sky above Earth’s equator.

Dec 4, 2025 · Astronomically speaking, the first day of spring is marked by the spring equinox, which falls on March 19, 20, or 21. The equinox happens at the exact moment worldwide, although our …

Mar 12, 2025 · Find out all about the First Day of Spring! Wherever you are, take a few minutes to enjoy this year’s vernal equinox and all the good things that come with it.

Dec 24, 2025 · The first day of winter in the Northern Hemisphere is marked by the winter solstice, which occurs on Sunday, December 21, 2025, at 10:03 A.M. (EST). Use our Time Zone Converter to …

Sep 12, 2024 · What signs of fall can you see, hear, taste, smell, and touch? In our neck of the woods, the signs of fall are acorns falling and squirrels scurrying about. Hawks and hummers are starting to …

Aug 14, 2025 · Our Day of the Week Calculator makes it easy (and fun!) to find out what day of the week any date lands on: past, present, or future. Just pop in a date and get an instant answer.

3 days ago · See the average first and last frost dates for locations across the U.S. and Canada with our frost dates calculator. Simply enter your postal code to see when the last spring frost date and first …