Join Date: Jul 2015
Vehicle: 2001 SLK320
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I think NASA had an answer to that one........
But I imagine there is some choice for an earthling,
UTC standard time,
Time from where the mission began,
Time used where mission control is located,
Elapsed time from launch time,
Time left till return and touchdown
And then there is the moon rotating once every month or so (27.3 days), does the “Moon” watch show 27.3 x 24 hours in a lunar day,
or 24 very loooong hours?
Does anyone sell a lunar watch? ( or phone app)?
Do we have an astronomer here who knows what the international convention is?