[LEAPSECS] ITU-R SG7 to consider UTC on October 4

Steve Allen sla at ucolick.org
Thu Aug 5 16:45:24 EDT 2010

On Thu 2010-08-05T16:29:17 -0400, ashtongj hath writ:

> On 2010-08-05 3:17 PM, Jonathan E. Hardis wrote:

> >The 15th Conference Generale des Poids et Mesures (the formal body

> >formed by the Treaty of the Meter) "strongly endorsed" the usage of UTC

> >as the basis of civil time among the signatory nations and throughout

> >the world.

The CGPM did so with the explicit recognition that UTC (with leap
seconds) provides mean solar time (in accord with the 1884
International Meridian Conference agreement about time).


> >What countries do you think are using UT1 (or another time scale with an

> >astronomical basis) for their legal time, and which would therefore

> >drift away from those using UTC?

Notably, Denmark. See here for other such complexities:


I'd be happy to learn of other such issues.

Steve Allen <sla at ucolick.org> WGS-84 (GPS)
UCO/Lick Observatory Natural Sciences II, Room 165 Lat +36.99855
University of California Voice: +1 831 459 3046 Lng -122.06015
Santa Cruz, CA 95064 http://www.ucolick.org/~sla/ Hgt +250 m

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