I forget how this was accounted for in Kim Stanley Robin's famous Mars trilogy (highly recommend; best Sci-Fi book I've ever read). I think Earth and Mars were

I forget how this was accounted for in Kim Stanley Robin's famous Mars trilogy (highly recommend; best Sci-Fi book I've ever read). I think Earth and Mars were so far apart with time delays and everything else that Martian days/years took on a meaning of their own.