The word Equinox means “equal night”, however, the date when day and night are equal varies depending on where you live relative to the Equator. For Cornwall, the Equinox falls on Sep 22, 2020, whereas the equalnight falls on Sep 25.
Source: Freeman, Gordon R. Canada’s Stonehenge: Astounding Archaeological Discoveries in Canada, England, and Wales. Calgary: Kingsley Pub., 2009.
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When Day = Night |
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Date |
Latitude |
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from Equator to N Pole |
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Feb 3 – 9 |
3° N |
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Feb 25 – 26 |
5° N |
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Mar 7-8 |
10° N |
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Mar 13-14 |
20° N |
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Mar 15-16 |
30°N |
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Mar 16-17 |
40° N |
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Mar 17-18 |
50-80° N |
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Mar 18 |
90° N |
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from S Pole to Equator |
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Mar 22 |
90° S |
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Mar 22-23 |
50-80° S |
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Mar 23-24 |
30-40° S |
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Mar 26-27 |
20° S |
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Mar 31-Apr 1 |
10° S |
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Apr 14-15 |
5° S |
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Apr 3-May 6 |
3° S |
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from Equator to S Pole |
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Aug 9-12 |
3° S |
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Aug 28-29 |
5° S |
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Sep 10-11 |
10° S |
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Sep 16-17 |
20° S |
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Sep 18-19 |
30° S |
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Sep 19-20 |
40-60° S |
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Sep 20-21 |
80° S |
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Sep 20 |
90° S |
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from N Pole to Equator |
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Sep 24 |
90° N |
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Sep 24-25 |
60-80° N |
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Sep 25-26 |
40-50° N |
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Sep 26-27 |
30° N |
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Sep 29-30 |
20° N |
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Oct 5-6 |
10° N |
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Oct 17-18 |
5° N |
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Nov 4-10 |
3°N |
Rethinking Time 