Thanks, I'll check that out. A big part of what I liked about your calendar is the direct correlation to a natural cycle though, and I like the idea of solar noon for the same reasons. The idea isn't to constrain nature but acknowledge it and adapt ourselves, centering days on the sun's zenith at ones location just makes intuitive sense to me and lines up with my own perception of time when disconnected from infrastructure. Completely useless and impractical computationally, but very well aligned with a human sense of place in both time and space