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Re: ITC copped out on UTC again

2012-02-07 13:04:12
james woodyatt <jhw(_at_)apple(_dot_)com> wrote:

TAI has a fairly stable foundation in non-relativistic physics, which
experience has shown to be somewhat resistant to the power of political
bodies to modify at will,

Actually TAI depends a lot on relativity as well as quantum physics. For
example, it is supposed to match the rate of the SI second on the geoid
(which is roughly mean sea level). NIST's lab in Colorado is about a mile
high, so they have to apply a general relativistic rate correction to
their atomic clocks because of their gravitational potential.

so it should be good enough for most running code on the Internet.

Except where that code needs UTC.

Tony.
-- 
f.anthony.n.finch  <dot(_at_)dotat(_dot_)at>  http://dotat.at/
Viking, North Utsire: Southerly or southeasterly 5 to 7, occasionally gale 8
in Viking. Moderate or rough, becoming rough or very rough in Viking. Showers.
Good.
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