Science ❯ Astronomy ❯ Celestial Events

Equinoxes

Spring Equinox Autumn Equinox Autumnal Equinox September Equinox Vernal Equinox Fall Equinox March Equinox Daylight Changes Chicagohenge

Spring 2026 Begins March 20 With Vernal Equinox Around 08:46 CT

The event marks the Sun crossing Earth's equator, producing near-equal day and night.

Winter Solstice Arrives Sunday at 10:03 a.m. EST, Marking Year’s Shortest Day

Autumn 2025 Equinox Falls Today at 20:19 in Italy

Total Lunar Eclipse to Turn Harvest Moon Red on September 7

Summer Solstice Marks Longest Day in Northern Hemisphere

September Equinox Marks Seasonal Shift and Potential for Intense Northern Lights

Spring Equinox 2024: Earliest Start in Over a Century