[LEAPSECS] LEAPSECS Digest, Vol 51, Issue 23

[Tony Finch]

On Tue, 8 Feb 2011, Gerard Ashton wrote:

>

> A single permanent time zone change is not a secular change; in this

> context a secular change is one that increases indefinitely, as opposed

> to a periodic change, in which the positive and negative changes cancel

> out in the long run.


One example of an existing secular change of local time might be the
tectonic drift of Hawaii, but since it moves about 1m east every decade
the effect is about three orders of magnitude less than the TAI vs. UT1
rate error.

Tony.
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