Seasons and differences in latitude make that really impractical though. It's simply impossible to have a sane consistent system of time that can set a constan

Seasons and differences in latitude make that really impractical though. It's simply impossible to have a sane consistent system of time that can set a constant sunrise time handling either seasons or latitude differences just in isolation, let alone both. For starters, you'd need a 2D system of time zones (taking into account both latitude and longitude), and time would be floating and would change each day; days would be less than 24 hours between two solstices and then greater than 24 hours leading up to the next solstice. And of course this pattern would reverse across the equator, too. Days would be different lengths depending on your latitude, and time would only sync up across different 2D time zones twice a year! It would be madness.