Okay, tomorrow, Saturday 23 September is the true first
day of Spring, or the astronomical first day.  It's not
—as the corporates, the marketers and the spin doctors
tell us that it's 1 September.  It's just an excuse to bring
forward the so-called "Spring Sales!" by three weeks. 
And a gullible public fall for it year after year FFS.

I've also seen advertising for "Pre-Christmas" sales, and
"Get Ready for Summer" sales advertising.  I'm now
awaiting the first hot-cross buns and mince tarts to
appear in my local Woolies LOL.

     https://i.postimg.cc/d0nNX9Vk/Screenshot-2023-09-22-at-01-53-24-angry-senior-man-cartoon-vector-39003127-jpg-JPEG-Image-349-250.png

           ;)

Here the daylight is:
19 September 11:59:48      hours long.
20 September  12:01:38.
So Spring began at equinox just after midnight on 19/20 early Wednesday.  The calendars are wrong, Earth is wobbling and Hallow'een is yellow pumpkins and skeletons. That's why the Russian spacecraft crashed.