@cassolotl@queer.party I know you didn't mean to but this nerd sniped me hard

Here's a spreadsheet that works out which day the solstice/equinox falls on for a given year, feel free to nick it wholesale

https://docs.google.com/spreadsheets/d/1p7_mpGG0A4V8Srnn_6LloW0OeyMfIuQlNvwh2qKqBpk/edit?usp=sharing

It's using an algorithm from Meeus' Astronomical Algorithms, it'll be accurate for the next thousand years, accurate enough for a few centuries past then