Happy Equinox DUers!

[BaronChocula]

Does it seem like the length of daylight is 10x shorter than it was yesterday?

[GreenWave]

1. Yes! Ain't no sunshine around my place.

[BlueSpot]

2. Why is it the 22nd now?

When I was in middle school learning about these things, the equinoxes and solstices were on the 21st of their months. Why did it change to the 22nd?

[BaronChocula]

3. It's the Deep State

Just kidding. I think it relates to the same principle that gives us leap years.

https://www.timeanddate.com/calendar/varying-march-equinox-date.html

Back in the day (my day) they may have just acknowledged each equinox on the same day of the year to make things easy.

[John1956PA]

4. I think the fall equinox is has occurred most often on 22nd or 23rd for the past century or more.

There have been a handful of years when the equinox occurred on the 24th.

I researched this question a few years ago. My understanding is that, since the time when the Gregorian Calendar was adopted (the year 1583), there has not been a September 21st fall equinox. My understanding is that in the years 2092 and 2096 the fall equinox will occur on September 21.

[mucholderthandirt]

5. It's always been within a three-day period, due to the movement of the planets.

Spring and Autumn, within a three day span. It's why Easter has no set day, it was a holiday that was based on when the Spring solstice happened. Something about the first full moon after the solstice. Christians like to steal pagan holidays.

[BlueSpot]

6. Very interesting - thanks to all

I wonder if maybe I flunked the test on that one. LOL. Could've sworn it was always the 21st. The gray cells must be getting even grayer.

At least I can quit wondering about it now. You guys rock!