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 m d h m d h m 2000 2000 Perihelion Jan 3 05 18 Equinoxes Mar 20 07 35 Sept 22 17 28 Aphelion July 3 23 49 Solstices June 21 01 48 Dec 21 13 37 2001 2001 Perihelion Jan 4 08 52 Equinoxes Mar 20 13 31 Sept 22 23 04 Aphelion July 4 13 37 Solstices June 21 07 38 Dec 21 19 21 2002 2002 Perihelion Jan 2 14 09 Equinoxes Mar 20 19 16 Sept 23 04 55 Aphelion July 6 03 47 Solstices June 21 13 24 Dec 22 01 14 2003 2003 Perihelion Jan 4 05 02 Equinoxes Mar 21 01 00 Sept 23 10 47 Aphelion July 4 05 40 Solstices June 21 19 10 Dec 22 07 04 2004 2004 Perihelion Jan 4 17 42 Equinoxes Mar 20 06 49 Sept 22 16 30 Aphelion July 5 10 54 Solstices June 21 00 57 Dec 21 12 42 2005 2005 Perihelion Jan 2 00 35 Equinoxes Mar 20 12 33 Sept 22 22 23 Aphelion July 5 04 58 Solstices June 21 06 46 Dec 21 18 35 2006 2006 Perihelion Jan 4 15 30 Equinoxes Mar 20 18 26 Sept 23 04 03 Aphelion July 3 23 10 Solstices June 21 12 26 Dec 22 00 22 2007 2007 Perihelion Jan 3 19 43 Equinoxes Mar 21 00 07 Sept 23 09 51 Aphelion July 6 23 53 Solstices June 21 18 06 Dec 22 06 08 2008 2008 Perihelion Jan 2 23 51 Equinoxes Mar 20 05 48 Sept 22 15 44 Aphelion July 4 07 41 Solstices June 20 23 59 Dec 21 12 04 2009 2009 Perihelion Jan 4 15 30 Equinoxes Mar 20 11 44 Sept 22 21 19 Aphelion July 4 01 40 Solstices June 21 05 46 Dec 21 17 47 2010 2010 Perihelion Jan 3 00 09 Equinoxes Mar 20 17 32 Sept 23 03 09 Aphelion July 6 11 30 Solstices June 21 11 28 Dec 21 23 38 2011 2011 Perihelion Jan 3 18 32 Equinoxes Mar 20 23 21 Sept 23 09 05 Aphelion July 4 14 54 Solstices June 21 17 16 Dec 22 05 30 2012 2012 Perihelion Jan 5 00 32 Equinoxes Mar 20 05 14 Sept 22 14 49 Aphelion July 5 03 32 Solstices June 20 23 09 Dec 21 11 12 2013 2013 Perihelion Jan 2 04 38 Equinoxes Mar 20 11 02 Sept 22 20 44 Aphelion July 5 14 44 Solstices June 21 05 04 Dec 21 17 11 2014 2014 Perihelion Jan 4 11 59 Equinoxes Mar 20 16 57 Sept 23 02 29 Aphelion July 4 00 13 Solstices June 21 10 51 Dec 21 23 03 2015 2015 Perihelion Jan 4 06 36 Equinoxes Mar 20 22 45 Sept 23 08 21 Aphelion July 6 19 40 Solstices June 21 16 38 Dec 22 04 48 2016 2016 Perihelion Jan 2 22 49 Equinoxes Mar 20 04 30 Sept 22 14 21 Aphelion July 4 16 24 Solstices June 20 22 34 Dec 21 10 44 2017 2017 Perihelion Jan 4 14 18 Equinoxes Mar 20 10 29 Sept 22 20 02 Aphelion July 3 20 11 Solstices June 21 04 24 Dec 21 16 28 2018 2018 Perihelion Jan 3 05 35 Equinoxes Mar 20 16 15 Sept 23 01 54 Aphelion July 6 16 47 Solstices June 21 10 07 Dec 21 22 23 2019 2019 Perihelion Jan 3 05 20 Equinoxes Mar 20 21 58 Sept 23 07 50 Aphelion July 4 22 11 Solstices June 21 15 54 Dec 22 04 19 2020 2020 Perihelion Jan 5 07 48 Equinoxes Mar 20 03 50 Sept 22 13 31 Aphelion July 4 11 35 Solstices June 20 21 44 Dec 21 10 02 2021 2021 Perihelion Jan 2 13 51 Equinoxes Mar 20 09 37 Sept 22 19 21 Aphelion July 5 22 27 Solstices June 21 03 32 Dec 21 15 59 2022 2022 Perihelion Jan 4 06 55 Equinoxes Mar 20 15 33 Sept 23 01 04 Aphelion July 4 07 11 Solstices June 21 09 14 Dec 21 21 48 2023 2023 Perihelion Jan 4 16 17 Equinoxes Mar 20 21 24 Sept 23 06 50 Apheion July 6 20 07 Solstices June 21 14 58 Dec 22 03 27 2024 2024 Perihelion Jan 3 00 39 Equinoxes Mar 20 03 06 Sept 22 12 44 Aphelion July 5 05 06 Solstices June 20 20 51 Dec 21 09 21 2025 2025 Perihelion Jan 4 13 28 Equinoxes Mar 20 09 01 Sept 22 18 19 Aphelion July 3 19 55 Solstices June 21 02 42 Dec 21 15 03
