Dates and Times of Equinoxes and Solstices
Note that dates are given in both the Gregorian (Common Era) Calendar and in the Julian Calendar
Dates for a range of years may be obtained, e.g. for all years in the range 2000 through 2010:
| Vernal equinox 2000-03-20 G 07:26 2000-03-07 J 07:26 2001-03-20 G 13:15 2001-03-07 J 13:15 2002-03-20 G 19:04 2002-03-07 J 19:04 2003-03-21 G 00:53 2003-03-08 J 00:53 2004-03-20 G 06:42 2004-03-07 J 06:42 2005-03-20 G 12:31 2005-03-07 J 12:31 2006-03-20 G 18:20 2006-03-07 J 18:20 2007-03-21 G 00:09 2007-03-08 J 00:09 2008-03-20 G 05:58 2008-03-07 J 05:58 2009-03-20 G 11:47 2009-03-07 J 11:47 2010-03-20 G 17:36 2010-03-07 J 17:36 |
Summer solstice 2000-06-21 G 01:37 2000-06-08 J 01:37 2001-06-21 G 07:25 2001-06-08 J 07:25 2002-06-21 G 13:13 2002-06-08 J 13:13 2003-06-21 G 19:01 2003-06-08 J 19:01 2004-06-21 G 00:49 2004-06-08 J 00:49 2005-06-21 G 06:37 2005-06-08 J 06:37 2006-06-21 G 12:25 2006-06-08 J 12:25 2007-06-21 G 18:13 2007-06-08 J 18:13 2008-06-21 G 00:00 2008-06-08 J 00:00 2009-06-21 G 05:48 2009-06-08 J 05:48 2010-06-21 G 11:36 2010-06-08 J 11:36 |
Autumnal equinox 2000-09-22 G 17:12 2000-09-09 J 17:12 2001-09-22 G 23:01 2001-09-09 J 23:01 2002-09-23 G 04:49 2002-09-10 J 04:49 2003-09-23 G 10:38 2003-09-10 J 10:38 2004-09-22 G 16:26 2004-09-09 J 16:26 2005-09-22 G 22:15 2005-09-09 J 22:15 2006-09-23 G 04:03 2006-09-10 J 04:03 2007-09-23 G 09:52 2007-09-10 J 09:52 2008-09-22 G 15:40 2008-09-09 J 15:40 2009-09-22 G 21:29 2009-09-09 J 21:29 2010-09-23 G 03:17 2010-09-10 J 03:17 |
Winter solstice 2000-12-21 G 13:25 2000-12-08 J 13:25 2001-12-21 G 19:15 22001-12-08 J 19:15 2002-12-22 G 01:04 2002-12-09 J 01:04 2003-12-22 G 06:54 2003-12-09 J 06:54 2004-12-21 G 12:43 2004-12-08 J 12:43 2005-12-21 G 18:33 2005-12-08 J 18:33 2006-12-22 G 00:22 2006-12-09 J 00:22 2007-12-22 G 06:12 2007-12-09 J 06:12 2008-12-21 G 12:02 2008-12-08 J 12:02 2009-12-21 G 17:51 2009-12-08 J 17:51 2010-12-21 G 23:41 2010-12-08 J 23:41 |
In 46 bce Julius Caesar, with the advice of the Alexandrian astronomer Sosigenes,
created the Julian calendar
The Gregorian calendar year differs from the solar year by only 26 seconds—accurate enough for most mortals, since this only adds up to one day's difference every 3,323 years.
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