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Dates31,574 Categories13

31,574 dates · 13 categories

Solstices and equinoxes

Sky and space · 4 this year · Subscribe

2026, day by day. Click a day to jump to it.

2026

Today, Mon Nov 9

Coming upDecember

Dec 21 · 14:50December solsticeShortest day of the year in the Northern Hemisphere; winter begins there.US Naval Observatory, computedDetails →

PastSeptember

Sep 22 · 19:05September equinoxAutumn begins in the Northern Hemisphere, spring in the Southern.US Naval Observatory, computedDetails →

PastJune

Jun 21 · 03:25June solsticeLongest day of the year in the Northern Hemisphere; summer begins there.US Naval Observatory, computedDetails →

PastMarch

Mar 20 · 09:45March equinoxSpring begins in the Northern Hemisphere, autumn in the Southern. Day and night are close to equal everywhere.US Naval Observatory, computedDetails →

Date	Event	Recurs	Source
Coming upDecember
Dec 21Monin 6 weeks	December solsticeShortest day of the year in the Northern Hemisphere; winter begins there.2:50 pm CT · US Naval Observatory	annual	US Naval ObservatoryComputed (rule)
PastSeptember
Sep 22Tue6 weeks ago	September equinoxAutumn begins in the Northern Hemisphere, spring in the Southern.7:05 pm CT · US Naval Observatory	annual	US Naval ObservatoryComputed (rule)
PastJune
Jun 21Sun4 months ago	June solsticeLongest day of the year in the Northern Hemisphere; summer begins there.3:25 am CT · US Naval Observatory	annual	US Naval ObservatoryComputed (rule)
PastMarch
Mar 20Fri7 months ago	March equinoxSpring begins in the Northern Hemisphere, autumn in the Southern. Day and night are close to equal everywhere.9:45 am CT · US Naval Observatory	annual	US Naval ObservatoryComputed (rule)