Exact dates for equinoxes and solstices
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These dates are of particular importance for followers of Cubism. Cubist holidays are all ceneterd on Solstices and Equinoxes.
Given the wobble of the planets, exact dates can vary by as much as 2 days from one year to the next. See wikipedia articles on Solstice; Equinox.
Times are given in Universal Time (GMT).
2004
| Event | Date | Time |
| Perihelion | January 4 | 18:00 |
| Vernal (Spring) Equinox | March 20 | 06:49 |
| Summer Solstice | June 21 | 00:57 |
| Aphelion | July 5 | 11:00 |
| Autumnal Equinox | September 22 | 16:30 |
| Winter Solstice | December 21 | 12:42 |
2005
| Event | Date | Time |
| Perihelion | January 2 | 01:00 |
| Vernal (Spring) Equinox | March 20 | 12:33 |
| Summer Solstice | June 21 | 06:46 |
| Aphelion | July 5 | 05:00 |
| Autumnal Equinox | September 22 | 22:23 |
| Winter Solstice | December 21 | 18:35 |
2006
| Event | Date | Time |
| Perihelion | January 4 | 15:00 |
| Vernal (Spring) Equinox | March 20 | 18:26 |
| Summer Solstice | June 21 | 12:26 |
| Aphelion | July 3 | 23:00 |
| Autumnal Equinox | September 23 | 04:03 |
| Winter Solstice | December 22 | 00:22 |
2007
| Event | Date | Time |
| Perihelion | January 3 | 20:00 |
| Vernal (Spring) Equinox | March 21 | 00:07 |
| Summer Solstice | June 21 | 18:06 |
| Aphelion | July 7 | 00:00 |
| Autumnal Equinox | September 23 | 09: 51 |
| Winter Solstice | December 22 | 06:08 |
See US Naval Observatory where listings for 1992-2020 can be found.
