Explore Calendar of Events Spring Equinox, 2021 – Sunset
March 20, 2021
6:30 p.m. – 9:00 p.m.
Online

Spring Equinox, 2021 – Sunset

Join us at sunset to mark the start of Spring!

Upcoming Equinox and Solstice Events at Griffith Observatory

Spring Equinox - Sunset

Griffith Observatory marks the start of spring in the Northern Hemisphere with a live online talk focused on the location of the setting Sun on the western horizon. Observatory staff will discuss the meaning of the equinox and how the Sun’s changing path across the sky causes seasonal changes.

Sunset on the spring equinox in 2014.

Spring begins in Earth’s northern hemisphere at 2:37 a.m., PDT, today. Autumn begins in the southern hemisphere at the same time. The March/spring equinox is the moment when the Sun crosses the celestial equator (the projection of Earth’s equator into space) from south to north. From the spring equinox until the start of summer – the summer solstice in June – days will get longer, and the noon elevation of the Sun will increase. This happens because the Earth’s axis is tilted 23½ degrees to its orbit. Day and night are of equal length today.