Astronomical Information

Solstices - Equinoxes

Solstices & Equinoxes

The seasons begin as the sun reaches a solstice or an equinox. Solstices are the times when the sun appears farthest north (summer) or south (winter) of a projection of Earth's equator into space. Equinoxes are the times when the sun crosses the plane of Earth's equator from south to north (spring) or north to south (autumn). These dates vary a little from year to year.

In 2018
Daylight savings begins at 2:00 a.m. Sunday, March 11, 2018
Vernal (Spring) Equinox occurs on Sunday, March 20 at 12:15 AM EDT
Summer Solstice occurs on Monday, June 21 at 6:07 PM EDT
Autumnal (Fall) Equinox occurs on Thursday, September 22 at 9:54 PM EDT
Daylight Savings Time ends at 2:00 a.m. Sunday, November 4, 2018
Winter Solstice occurs on Wednesday, December 21 at 5:22 AM EST

These dates and times are for Kalamazoo, MI.  You may see them listed with slightly different dates or times depending on the viewer’s location or if Universal Time is used.