[LEAPSECS] Caveat emptor!

[Steve Allen]

On Mon 2011-04-11T12:38:46 -0400, Keith Winstein hath writ:

> On Apr 11, 2011 12:33 PM, "Rob Seaman" <seaman at noao.edu> wrote:

> >  Remember, UT1 is only known retroactively.

>

> To be fair, isn't this true of UTC (and TAI) as well?


Whenever one of the practitioners has deigned to contribute an answer
to such the response is so much like a discourse by Plato or Buddha
that I'm no longer convinced the question has a good answer.

But there are (multiple) realized and disseminated forms of UTC,
and the reason for that is ITU-R TF-460.

--
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