Seasons for the Northern Hemisphere, 2009
- Vernal Equinox: Mar. 20, 7:44 a.m. EDT (11:44 UT*), Sun enters sign of Aries; spring begins.
- Summer Solstice: June 21, 1:45 a.m. EDT (5:45 UT*), Sun enters sign of Cancer; summer begins.
- Autumnal Equinox: Sept. 22, 5:18 p.m. EDT (21:18 UT*), Sun enters sign of Libra; fall begins.
- Winter Solstice: Dec. 21, 12:47 p.m. EST (17:47 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.