Dates of the equinoxes and solstices

List of solstice and equinox dates for the current and future years. You can access the dates directly, sorted by year, via the links below:

Principles of solstices and equinoxes

The equinox is the time of year when the sun is at its zenith at the earth's equator, and the earth is at right angles (taking the poles) to the sun's rays. Day and night then have the same duration.

The solstice is the time of year when the sun's rays hit the Earth at the steepest angle. The summer solstice represents the longest day, and the winter solstice the shortest.

Exact dates and times of solstices and equinoxes for United States (New York) UTC-4

This page shows the precise dates of the equinoxes and solstices for the current year and for future years, up to 2029. These data are provided by the Institut de mécanique céleste et de calcul des éphémérides (IMCCE). The times shown are local times for time zone United States (New York) UTC-4.

Solstices and equinoxes in 2024

Spring equinox Tuesday, March 19, 2024 11:06 PM
Summer solstice Thursday, June 20, 2024 4:50 PM
Autumn equinox Sunday, September 22, 2024 8:43 AM
Winter solstice Saturday, December 21, 2024 4:20 AM

Solstices and equinoxes in 2025

Spring equinox Thursday, March 20, 2025 5:01 AM
Summer solstice Friday, June 20, 2025 10:42 PM
Autumn equinox Monday, September 22, 2025 2:19 PM
Winter solstice Sunday, December 21, 2025 10:03 AM

Solstices and equinoxes in 2026

Spring equinox Friday, March 20, 2026 10:45 AM
Summer solstice Sunday, June 21, 2026 4:24 AM
Autumn equinox Tuesday, September 22, 2026 8:05 PM
Winter solstice Monday, December 21, 2026 3:50 PM

Solstices and equinoxes in 2027

Spring equinox Saturday, March 20, 2027 4:24 PM
Summer solstice Monday, June 21, 2027 10:10 AM
Autumn equinox Thursday, September 23, 2027 2:01 AM
Winter solstice Tuesday, December 21, 2027 9:42 PM

Solstices and equinoxes in 2028

Spring equinox Sunday, March 19, 2028 10:17 PM
Summer solstice Tuesday, June 20, 2028 4:01 PM
Autumn equinox Friday, September 22, 2028 7:45 AM
Winter solstice Thursday, December 21, 2028 3:19 AM

Solstices and equinoxes in 2029

Spring equinox Tuesday, March 20, 2029 4:01 AM
Summer solstice Wednesday, June 20, 2029 9:48 PM
Autumn equinox Saturday, September 22, 2029 1:38 PM
Winter solstice Friday, December 21, 2029 9:13 AM