On 20 Feb 2009, at 23:36, Tammy Nowotny wrote:
I am not sure if there is a standard yet for time on other planets.
The only significant off-planet activities were the moon missions of
the early 1970s, and those only lasted a few days each. The
astronauts just used earth time. I don't know offhand if they used
Houston Time or Zulu Time (same as UTC and GMT) or what. The moon
was so close and the speeds used to get there were so slow that
relativity was insignificant.
Even when we just go to Mars, we have problems. The second is a
well-defined time unit our explorers would use that. But Mars is
far enough from the earth that you can't just use Earth time. And
of course its day and year are very different lengths from ours.
--Tammy Nowotny
Relativistic time adjustments should clearly also be a part of this.
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