Fall equinox
Tuesday, September 22, 2026
12:00 (America/Phoenix)
Days start growing shorter than nights in the north; spring begins in the south.
Seasons & Sun
Coolidge
Fall equinox
52 days away
Next event
Upcoming events
Fall equinox
Tuesday, September 22, 2026
12:00 (America/Phoenix)
Winter solstice
Monday, December 21, 2026
08:00 (America/Phoenix)
142 days away
Spring equinox
Saturday, March 20, 2027
02:00 (America/Phoenix)
231 days away
Summer solstice
Sunday, June 20, 2027
21:00 (America/Phoenix)
323 days away
Fall equinox
Wednesday, September 22, 2027
12:00 (America/Phoenix)
417 days away
Winter solstice
Tuesday, December 21, 2027
08:00 (America/Phoenix)
507 days away
Equinoxes
Day and night are nearly equal length worldwide. The Sun crosses the celestial equator — a key marker for seasonal change.
Solstices
The Sun reaches its northernmost or southernmost point in the sky. These are the longest and shortest days of the year.
Your hemisphere
Dates are shown in your local timezone. Season names reflect the Northern Hemisphere — the same astronomical event marks opposite seasons south of the equator.