The Equinox is a total misnomer
Contrary to popular opinion (including my own for much longer than I care to admit), the Equinox is not the day when the day and night are equal. It’s the day when the Sun’s zenith occurs over the Equator.
When you experience day and night as equal depends on where in the world you live. Here’s a convenient table:
| When Day = Night | |
| Date | Latitude |
| from Equator to N Pole | |
| Feb 3 – 9 | 3° N |
| Feb 25 – 26 | 5° N |
| Mar 7-8 | 10° N |
| Mar 13-14 | 20° N |
| Mar 15-16 | 30°N |
| Mar 16-17 | 40° N |
| Mar 17-18 | 50-80° N |
| Mar 18 the Sun rises | 90° N |
| from S Pole to Equator | |
| Mar 22 the Sun sets | 90° S |
| Mar 22-23 | 50-80° S |
| Mar 23-24 | 30-40° S |
| Mar 26-27 | 20° S |
| Mar 31-Apr 1 | 10° S |
| Apr 14-15 | 5° S |
| Apr 3-May 6 | 3° S |
| from Equator to S Pole | |
| Aug 9-12 | 3° S |
| Aug 28-29 | 5° S |
| Sep 10-11 | 10° S |
| Sep 16-17 | 20° S |
| Sep 18-19 | 30° S |
| Sep 19-20 | 40-60° S |
| Sep 20-21 | 80° S |
| Sep 20 the Sun rises | 90° S |
| from N Pole to Equator | |
| Sep 24 | 90° N |
| Sep 24-25 | 60-80° N |
| Sep 25-26 | 40-50° N |
| Sep 26-27 | 30° N |
| Sep 29-30 | 20° N |
| Oct 5-6 | 10° N |
| Oct 17-18 | 5° N |
| Nov 4-10 | 3°N |
Rethinking Time 