Earth's Seasons
Equinoxes, Solstices, Perihelion, and Aphelion, 2000-2020
Astronomical Applications Dept. Astronomical Applications Dept.
 
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The table below provides the computed times of the beginning of the seasons as well as Earth's perihelion and aphelion. The times of the equinoxes mark the beginning of spring and fall. The times of the solstices mark the beginning of summer and winter. Definitions of these terms can be found in The Astronomical Almanac Online glossary.

Variation in Times of Perihelion and Aphelion explains why the times of these events appear to vary more than those of the others while The Seasons and the Earth's Orbit discusses how all of these phenomena relate.

NOTE:   In the tables, d, h, m indicate day, hour, and minute, respectively, of Universal Time.

Universal Time

                  d  h                      d  h  m           d  h  m
2000                        2000
Perihelion  Jan   3 05    Equinoxes  Mar   20 07 35    Sept  22 17 28
Aphelion    July  4 00    Solstices  June  21 01 48    Dec   21 13 37

2001                        2001
Perihelion  Jan   4 09    Equinoxes  Mar   20 13 31    Sept  22 23 04
Aphelion    July  4 14    Solstices  June  21 07 38    Dec   21 19 21

2002                        2002
Perihelion  Jan   2 14    Equinoxes  Mar   20 19 16    Sept  23 04 55
Aphelion    July  6 04    Solstices  June  21 13 24    Dec   22 01 14

2003                        2003
Perihelion  Jan   4 05    Equinoxes  Mar   21 01 00    Sept  23 10 47
Aphelion    July  4 06    Solstices  June  21 19 10    Dec   22 07 04

2004                        2004
Perihelion  Jan   4 18    Equinoxes  Mar   20 06 49    Sept  22 16 30
Aphelion    July  5 11    Solstices  June  21 00 57    Dec   21 12 42

2005                        2005
Perihelion  Jan   2 01    Equinoxes  Mar   20 12 33    Sept  22 22 23
Aphelion    July  5 05    Solstices  June  21 06 46    Dec   21 18 35

2006                        2006
Perihelion  Jan   4 16    Equinoxes  Mar   20 18 26    Sept  23 04 03
Aphelion    July  3 23    Solstices  June  21 12 26    Dec   22 00 22

2007                        2007
Perihelion  Jan   3 20    Equinoxes  Mar   21 00 07    Sept  23 09 51
Aphelion    July  7 00    Solstices  June  21 18 06    Dec   22 06 08

2008                        2008
Perihelion  Jan   3 00    Equinoxes  Mar   20 05 48    Sept  22 15 44
Aphelion    July  4 08    Solstices  June  20 23 59    Dec   21 12 04

2009                        2009
Perihelion  Jan   4 15    Equinoxes  Mar   20 11 44    Sept  22 21 19
Aphelion    July  4 02    Solstices  June  21 05 46    Dec   21 17 47

2010                        2010
Perihelion  Jan   3 00    Equinoxes  Mar   20 17 32    Sept  23 03 09
Aphelion    July  6 12    Solstices  June  21 11 28    Dec   21 23 38

2011                        2011
Perihelion  Jan   3 19    Equinoxes  Mar   20 23 21    Sept  23 09 05
Aphelion    July  4 15    Solstices  June  21 17 16    Dec   22 05 30

2012                        2012
Perihelion  Jan   5 01    Equinoxes  Mar   20 05 14    Sept  22 14 49
Aphelion    July  5 04    Solstices  June  20 23 09    Dec   21 11 12

2013                        2013
Perihelion  Jan   2 05    Equinoxes  Mar   20 11 02    Sept  22 20 44
Aphelion    July  5 15    Solstices  June  21 05 04    Dec   21 17 11

2014                        2014
Perihelion  Jan   4 12    Equinoxes  Mar   20 16 57    Sept  23 02 29
Aphelion    July  4 00    Solstices  June  21 10 51    Dec   21 23 03

2015                        2015
Perihelion  Jan   4 07    Equinoxes  Mar   20 22 45    Sept  23 08 21
Aphelion    July  6 20    Solstices  June  21 16 38    Dec   22 04 48

2016                        2016
Perihelion  Jan   2 23    Equinoxes  Mar   20 04 30    Sept  22 14 21
Aphelion    July  4 16    Solstices  June  20 22 34    Dec   21 10 44

2017                        2017
Perihelion  Jan   4 14    Equinoxes  Mar   20 10 29    Sept  22 20 02
Aphelion    July  3 20    Solstices  June  21 04 24    Dec   21 16 28

2018                        2018
Perihelion  Jan   3 06    Equinoxes  Mar   20 16 15    Sept  23 01 54
Aphelion    July  6 17    Solstices  June  21 10 07    Dec   21 22 23

2019                        2019
Perihelion  Jan   3 05    Equinoxes  Mar   20 21 58    Sept  23 07 50
Aphelion    July  4 22    Solstices  June  21 15 54    Dec   22 04 19

2020                        2020
Perihelion  Jan   5 08    Equinoxes  Mar   20 03 50    Sept  22 13 31
Aphelion    July  4 12    Solstices  June  20 21 44    Dec   21 10 02