[LEAPSECS] LEAPSECS Digest, Vol 45, Issue 1
igb at batten.eu.org
Thu Sep 2 15:24:07 EDT 2010
> I'd wager that UTC, whatever its realization, would likely trump any
> locally written laws.
It'll be interesting in the UK
* There's no doubt that UK legal time is GMT, Interpretation Act 1978,
* There's no doubt that whatever GMT is, it's solar, and there's no
doubt that whatever UTC is, it isn't solar and would be even less
solar without leap seconds,
* There's no doubt that proposed legislation to change UK legal time
to UTC failed to be passed in 1997, and an extensive history of the
issue got read into Hansard.
You'd have a hell of a job showing UK time was UTC in the face of that.
> After all, UTC has been a widely accepted
> approximation of the local laws that's attained the force of law
> through repetitive use
That's right, but |DUT1|<1 means that for the purposes of integer
arithmetic it's barely more than a rounding error. There's clear,
modern legislation to the contrary.
> (how many real-time realizations of UT1 are
> propagated, in comparison to UTC). So underlying technical changes to
> UTC may not change that. It would take a long, and complicated, legal
> argument to show that UT1 is what should be used
Not in the UK, see above.
> (even though nobody
> knows what it is, day to day).
That's the paradox, isn't it!
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