Fall equinox
Wednesday, September 23, 2026
03:00 (Asia/Ulaanbaatar)
Days start growing shorter than nights in the north; spring begins in the south.
Seasons & Sun
Darhan
Fall equinox
53 days away
Next event
Upcoming events
Fall equinox
Wednesday, September 23, 2026
03:00 (Asia/Ulaanbaatar)
Winter solstice
Monday, December 21, 2026
23:00 (Asia/Ulaanbaatar)
142 days away
Spring equinox
Saturday, March 20, 2027
17:00 (Asia/Ulaanbaatar)
231 days away
Summer solstice
Monday, June 21, 2027
12:00 (Asia/Ulaanbaatar)
324 days away
Fall equinox
Thursday, September 23, 2027
03:00 (Asia/Ulaanbaatar)
418 days away
Winter solstice
Tuesday, December 21, 2027
23:00 (Asia/Ulaanbaatar)
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.