Starts on the equinox, innit
weather.metoffice.gov.uk/learn-about/weather/seasons/autumn/when-does-autumn-start
( Aardvark and so at last, I understood, Mon 1 Sep 2025, 9:31, Reply)

But that implies that winter and summer each start on the respective solstice,
when these are in fact midwinter and midsummer, from an astronomical POV.
( Mr. Tea 'ulmmm'/'mmneurgh', Mon 1 Sep 2025, 10:33, Reply)

I don't make the rules, Mr. Tea.

( Aardvark and so at last, I understood, Mon 1 Sep 2025, 11:14, Reply)

not so, if you enforce them and support them they're your rules, you've really fucked up the equinox here

( mofaha ┐( ˘_˘)┌ ʅ(́◡◝)ʃ, Mon 1 Sep 2025, 11:47, Reply)