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. -- f.anthony.n.finch <d...@dotat.at> http://dotat.at/ HUMBER THAMES DOVER WIGHT PORTLAND: NORTH BACKING WEST OR NORTHWEST, 5 TO 7, DECREASING 4 OR 5, OCCASIONALLY 6 LATER IN HUMBER AND THAMES. MODERATE OR ROUGH. RAIN THEN FAIR. GOOD. _______________________________________________ LEAPSECS mailing list LEAPSECS@leapsecond.com http://six.pairlist.net/mailman/listinfo/leapsecs
