Seasons for the Northern Hemisphere, 2006
- Vernal Equinox: Mar. 20, 1:26 P.M. EST (18:26 UT*), Sun enters sign of Aries; spring begins.
- Summer Solstice: June 21, 8:26 A.M. EDT (12:26 UT*), Sun enters sign of Cancer; summer begins.
- Autumnal Equinox: Sept. 23, 12:03 A.M. EDT (Sept. 23, 04:03 UT*), Sun enters sign of Libra; fall begins.
- Winter Solstice: Dec. 21, 7:22 P.M. EST (Dec. 22, 00:22 UT*), Sun enters sign of Capricorn; winter begins.
*Universal time (UT), also known as Greenwich mean time (GMT). See Astronomy for a conversion table of universal time.