Vernal Equinox

Dates and Times of Day
each year for 1096 years
1452 - 2547

Listed for four time zones and in two calendars




Spring Equinox 1452 - 1811

Spring Equinox 1788 - 2211

Spring Equinox 2188 - 2547
 
From 1452 to 2547: 
the  earliest spring equinox is March 19, 2496, at 12:28 pm U.T.
                                                    8:28 am A.S.T.
                                                    7:28 am E.S.T.
                                                    4:28 am P.S.T.

and the latest spring equinox is March 21, 1503, at 8:42 pm U.T. 
                                                    4:42 pm A.S.T.
                                                    3:42 pm E.S.T.
                                                   12:42 pm P.S.T.





There is a remarkable pattern in the dates and times of day of the Spring Equinox, but this pattern is almost impossible to discern by reading the columns of numbers which record these dates and times.  The pattern becomes plain when you look at a graph showing the dates and times.  The graph is plotted with calendar years along the horizontal axis and, along the vertical axis, time of day and day of March at which the equinox occurs in each year.

A small sample of a graph like this is shown below.  This sample is for the Autumn Equinox, but the pattern for the Spring Equinox is the same (with different dates and times of course).  This sample was scanned in March 2001 from part of a paper graph made in 1988, using an Amiga 2000 computer and an Epson L-1000 pin matrix printer.  The graph measures 120 × 35&#160cm, and shows the date and time of the Autumn Equinox for each year from 1787 to 2212.  In this scanned sample, the heavy black text was superimposed to identify axis positions which, in the original, lie outside the scanned area.

Time of Autumn Equinox, 2010 to 2120


Wayback Machine
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http://web.archive.org/index.html


"Use the Wayback Machine to view web sites from the past."



Archive of This Document:
Vernal Equinox
Dates and Times of Day each year for 1096 years

The Wayback Machine has copies of this webpage from the early days:
Archived: 2001 August 03
http://web.archive.org/web/20010803205540/http://www.geocities.com/newscotland1398/equinox/eqindex.html

Archived: 2002 August 25
http://web.archive.org/web/20020825161457/http://www.newscotland1398.net/equinox/eqindex.html

Archived: 2002 December 07
http://web.archive.org/web/20021207123257/http://www.newscotland1398.net/equinox/eqindex.html

Archived: 2003 June 01
http://web.archive.org/web/20030601130247/http://www.newscotland1398.net/equinox/eqindex.html

Archived: 2003 December 05
http://web.archive.org/web/20031205021322/http://www.newscotland1398.net/equinox/eqindex.html

Archived: 2004 February 29
http://web.archive.org/web/20040229220143/http://www.newscotland1398.net/equinox/eqindex.html


Note: The fourteen-digit number embedded in these URLs is structured: YYYYMMDDhhmmss.
This is the date and time the site was archived.





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First uploaded to the WWW:   1996 February 29
Equinox graph installed:   2001 March 22
Script upgraded to HTML 4.0:   2001 April 21
Updated:   2005 April 01
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