Michael Deckers via LEAPSECS <[email protected]> wrote: | On 2014-11-04 19:45, Brooks Harris wrote on the history of UTC: | |> For purposes of astronomy, and probably others, the "rubber \ |> band era" may have |> relevance. To call it "UTC" seems a bit of a stretch to me, but there's no |> generally accepted name for what Zefram calls "rubber-seconds era of UTC". | | An excellent account of the political and technical history of UTC is on | Steve Allen's page [http://www.ucolick.org/~sla/leapsec\ | s/timescales.html#UTC].
Oh, the german Physikalisch-Technische Bundesanstalt (PTB) also has a general -- at least -- overview of the set of problems. (English: [1] and all around that; oops, not everything is translated, what a shame! I hope it's not due to lack of resources, which seems to become notorious in Germany [for things that really matter at least].) Those ladies and gentlemen also seem to have the ambition to reduce the "non-realtimity" [2]: In the year 2013, 25 time scales UTC(k) with deviations UTC-UTC(k) of less than 10 ns existed. For example, the difference UTC-UTC(PTB) was 0,8 ns on January 2, 2013. [1] <https://www.ptb.de/cms/en/fachabteilungen/abt4/fb-44/ag-441/realisation-of-the-si-second.html> Rest under <https://www.ptb.de/cms/en/fachabteilungen/abt4/fb-44/ag-441/realisation-of-legal-time-in-germany/> [2] ...<coordinated-universal-time-utc.html> [3] ...<atomic-time-scales.html> [4] ...<the-time-scales-tai-and-eal.html> [5] ...<leap-seconds.html> --steffen _______________________________________________ LEAPSECS mailing list [email protected] https://pairlist6.pair.net/mailman/listinfo/leapsecs
