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Old December 7th 18, 08:04 PM posted to sci.astro.amateur
Gerald Kelleher
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Default Lat/Long and timekeeping system for Mars

https://mars.nasa.gov/insight/

The timekeeping and calendar framework where Martian hours, minutes and seconds will constitute a new and unique system for the planet along with its own months and years are crucial to identify events in much the same way as our home planet.

In coming to realise the function of the Prime Meridian and its opposite longitude within the masterpiece of human timekeeping where one 24 hour day elapses into the next and one rotation follows the next within a larger framework, even without the originators knowing the dynamics behind it, those people both ancient and recent are admired and loved as they should be.

I am privileged to see this framework in my own lifetime even among those who feel nothing.