Rob Seaman wrote:
> ....  One would expect that at least
> as many "applications" worldwide depend on time-of-day as depend
> on date formats.  ....

Sorry, but this one doesn't expect anything of the sort.  It
seems to me that many more applications are interested in time
durations than in the exact orientation of the Earth.

Perhaps a way of moving the discussion on would be to make a
list of applications requiring accurate Earth orientation
information:

1. Pointing telescopes.

2. Pointing satellite dishes.

3. Celestial navigation.

4. Calculating the civil times of sunrise and sunset, lighting
   up times, etc.

Others?

Ed Davies.

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