Expanded the little utilit that tells me the date in the arvelie format when I open my computer. Added it a gregorian-arvelie-gregorian converter. Fun fact, the date format is used on the esotericlanguages blog.
src: https://git.sr.ht/~rabbits/uxn-utils/tree/main/item/cli/arvelie/arvelie.tal
docs: http://wiki.xxiivv.com/site/time.html