More calendry at home.
I've got time calculations working to my satisfaction, which, importantly, includes LS. From that, I can work out what day of the year it is, and from that the date. Intercalation is a bit of a pita, but I'm going to use the same scheme the Darian calendar uses - I'm mostly just using the Darian calendar anyway, with better names. I am having some trouble deciding the best way to determine when the year begins. First, I think about starting it from LS=0, but with more than half a solar day to spare in the tropical year, that's unreasonable. It /would/ eliminate the need for intercalation, but, no. So, I need to calculate it. So, do I go all the way back to the epoch, defining a zero point where it was midnight at the meridian as close to LS=0 as possible, and compute integer sols since then? Inconvenient, particularly if I use something like the Darian epoch, which is ca 1609CE. And impossible if I want to use this in a system that uses 32bit time integers. So, probably best to compute a set of snapshots, as it were: if the unix seconds are greater than x, count from y, etc. That's probably the best way to go.