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, are labelled 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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       2005 Mar 31 Thu     39        2006 Mar 31 Fri     15
       2005 Mar 30 Wed     24        2006 Mar 30 Thu     22
       2005 Mar 29 Tue     43        2006 Mar 29 Wed     28
       2005 Mar 28 Mon     53        2006 Mar 28 Tue     37
       2005 Mar 27 Sun     56        2006 Mar 27 Mon     32
       2005 Mar 26 Sat     63        2006 Mar 26 Sun     22
       2005 Mar 25 Fri     64        2006 Mar 25 Sat     34
       2005 Mar 24 Thu     77        2006 Mar 24 Fri     44
       2005 Mar 23 Wed    133        2006 Mar 23 Thu     74
       2005 Mar 22 Tue    323        2006 Mar 22 Wed    139
       2005 Mar 21 Mon    858        2006 Mar 21 Tue    562
       2005 Mar 20 Sun    819        2006 Mar 20 Mon   2182
       2005 Mar 19 Sat    446        2006 Mar 19 Sun    576
       2005 Mar 18 Fri    357        2006 Mar 18 Sat    208
       2005 Mar 17 Thu    295        2006 Mar 17 Fri    324
       2005 Mar 16 Wed    283        2006 Mar 16 Thu    256
       2005 Mar 15 Tue    253        2006 Mar 15 Wed    233
       2005 Mar 14 Mon    245        2006 Mar 14 Tue    265
       2005 Mar 13 Sun     91        2006 Mar 13 Mon    195
       2005 Mar 12 Sat     74        2006 Mar 12 Sun     94
       2005 Mar 11 Fri     87        2006 Mar 11 Sat     63
       2005 Mar 10 Thu    123        2006 Mar 10 Fri    114
       2005 Mar 09 Wed    129        2006 Mar 09 Thu     93
       2005 Mar 08 Tue    120        2006 Mar 08 Wed    125
       2005 Mar 07 Mon    100        2006 Mar 07 Tue    146
       2005 Mar 06 Sun     59        2006 Mar 06 Mon    141
       2005 Mar 05 Sat     60        2006 Mar 05 Sun     87
       2005 Mar 04 Fri     62        2006 Mar 04 Sat     54
       2005 Mar 03 Thu     78        2006 Mar 03 Fri    101
       2005 Mar 02 Wed    112        2006 Mar 02 Thu    127
       2005 Mar 01 Tue    119        2006 Mar 01 Wed    184
       2005 Feb 28 Mon     83        2006 Feb 28 Tue    129
       2005 Feb 27 Sun     33        2006 Feb 27 Mon    117
       2005 Feb 26 Sat     35        2006 Feb 26 Sun     47



  Hits per calendar month
       2006 Mar   6577
       2006 Feb   1331
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       2005 Dec    436
       2005 Nov    300
       2005 Oct    218
       2005 Sep    467
       2005 Aug    211
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       2005 Jun    309
       2005 May    247
       2005 Apr    484
       2005 Mar   5645
       2005 Feb   1107
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       2004 Dec    264
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       2003 Dec    102
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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:   2006 April 06
1