On Wed 2013-09-04T20:43:18 +0100, Lester Caine hath writ:
I request caution in making it clear to ordinary users that the name UTC cannot be proleptically extended to dates prior to 1960. No such concept existed in contemporary records.
Being pedantic :) 1963 ... But none of the sources actually quote the date for Recommendation 374 :(
I have examined the pages and kept images of that document. http://www.ucolick.org/~sla/leapsecs/timescales.html The 10th Plenary Assembly of the CCIR was held in Geneva from 1963-01-15 to 1963-02-16. During that meeting Recommendation 374 was approved to supersede Recommendation 319. Recommendation 374 does not contain any form of the words "coordination", "coordinated", nor the letters "UTC". The text states that the broadcasts of time signals should "be offset to keep the time pulses in close agreement with UT2" and "maintained within approximately 100 ms of universal time UT2" with steps of exactly 50 ms. -- Steve Allen <sla@ucolick.org> WGS-84 (GPS) UCO/Lick Observatory--ISB Natural Sciences II, Room 165 Lat +36.99855 1156 High Street Voice: +1 831 459 3046 Lng -122.06015 Santa Cruz, CA 95064 http://www.ucolick.org/~sla/ Hgt +250 m