Seasons for the Northern Hemisphere, 2012
- Vernal Equinox: Mar. 20, 1:14 A.M. EDT (05:14 UT*), Sun enters sign of Aries; spring begins.
- Summer Solstice: June 20, 7:09 P.M. EDT (23:09 UT*), Sun enters sign of Cancer; summer begins.
- Autumnal Equinox: Sept. 22, 10:49 A.M. EDT (14:49 UT*), Sun enters sign of Libra; fall begins.
- Winter Solstice: Dec. 21, 7:11 A.M. EDT (11:11 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.