Sept. 4, 2013
5:36 p.m.
On Wed, Sep 4, 2013 at 7:04 PM, Stephen Colebourne <scolebourne@joda.org> wrote: > https://github.com/jodastephen/tz/commit/e6199cc2616e938efb9422b263bd09da70220604 > + Use ISO-3166 as a guide to ensuring time zone name coverage. > + There should typically be at least one name per ISO-3166 code. 1) name The section following "Here are the general rules used for choosing location names, in decreasing order of importance:" talks about locations, using "name" is inconsistent. 2) ISO-3166 code https://en.wikipedia.org/wiki/ISO_3166 leads to https://en.wikipedia.org/wiki/ISO_3166-1 https://en.wikipedia.org/wiki/ISO_3166-2 https://en.wikipedia.org/wiki/ISO_3166-3 There are two standards containing the string ISO 3166-1, the one published the latest is ISO 3166-1:2006 http://www.iso.org/iso/home/store/catalogue_tc/catalogue_detail.htm?csnumber=39719 The other is ISO 3166-1:1997 http://www.iso.org/iso/home/store/catalogue_tc/catalogue_detail.htm?csnumber=24591 The ISO website also shows ISO 3166:1981 ISO 3166:1988 ISO 3166:1993 ISO 3166-1:2006 includes three sets of codes. There is no 1:1:1 correspondence between the sets. Not even 1:1 between any pair of them. The Wikipedia article says: "The first edition of ISO 3166 was published in 1974, which included only alphabetic country codes." Thus even the cutoff 1970-01-01 marks a time that is before the first publication of any ISO 3166 standard. There are at least two pairs, namely DD/DE and YD/YE where there is not "at least one name per ISO-3166 code" but only one per pair. When looking at the locations or location names, it follows that "There should typically be at least one name per ISO-3166 code." was never applied. -- Tobias Conradi Rheinsberger Str. 18 10115 Berlin Germany http://tobiasconradi.com