I've been fascinated with this topic. A calendar for mars should tell you when there are transfer orbits available, the hours of solar light and so on. I tried to make it real and named it Whole Mars Calendar [1], any feedback would be appreciated [1]:https://danieledep.github.io/whole-mars-calendar/

> any feedback would be appreciated

I like it, with the exception of the Picture control, for its non-closability. Also, the 'threshold' value should be greyed-out or similar when 'None' is selected for the effect type.

yep that makes sense, you can toggle the panel by pressing ARROW-UP, but you're right I should make that option visible, thank you!

This is an excerpt from a novel by Robert L. Forward, but hosted on Thomas Gangale's site. Gangale has an extensive Martian timekeeping system of his own, the Darian calendar:

http://ops-alaska.com/time/gangale_converter/calendar_clock....

Posted once in the past three years, but quickly flagged and killed.

This was very interesting. It leads me to wonder, though, what kind of physical and psychological problems the first astronauts there will face.