Seeing as I’ve decided to use lojban as the IAL for AEfter Ragnarok (easy way to facilitate communication between people who don’t speak the same language; all people are strongly encouraged to learn their own culture, language, traditions etc first and foremost), I figured maybe I should have a “culturally neutral” (or something to that effect) global calendar as well.
The calendar reform article on Wikipedia had a bunch of links to check out.