We all know that "Greenwich Mean Time" is commonly used to describe UTC, UT1, and various similar time scales. Please check if I have estimated correctly.
-The easternmost point of the London district of Greenwich is a the intersection of two roads, Maze Hill and Charlton Way. The coordinates are 51° 28.509' N, 0° 0.602' E, which is about 36" E. Since 15" of arc equals 1 s of time, the eastern most part of Greenwich is 2 seconds of time east of the prime meridian. So if leap seconds were to stop, the meridian where local mean time most closely approximates UTC would fall outside Greenwich in about three years. At such time, any correct attempt to explain what GMT means, when used as a synonym for UTC, should mention it has nothing to do with Greenwich. Gerry Ashton _______________________________________________ LEAPSECS mailing list LEAPSECS@leapsecond.com http://six.pairlist.net/mailman/listinfo/leapsecs