How about adding UN/LOCODE in zone.tab?

[Mark Davis ☕]

More on those at http://cldr.unicode.org/index/bcp47-extension

Mark

*— Il meglio è l’inimico del bene —*


On Fri, Feb 4, 2011 at 08:35, Ian Abbott <abbotti at mev.co.uk> wrote:

> On 04/02/11 16:00, yoshito_umaoka at us.ibm.com wrote:
> > Unicode CLDR defines locale identifiers based on BCP47 language tag
> > (http://www.ietf.org/rfc/bcp/bcp47.txt)
> > BCP47 provides a mechanism for extending language tags for use in
> > various applications.
> >
> > We recently published RFC6067 (http://datatracker.ietf.org/doc/rfc6067/)
> > to allocate BCP47 extension letter "u" for the use of Unicode Locale
> > Identifiers. Unicode Locale Identifier has its own subtag for specifying
> > time zone IDs. Unfortunately, zone IDs in the tz database cannot be used
> > in language tag because each subtag in extension must be 2 to 8
> > alpha/numeric characters. For this reason, we defined "short ID" for
> > zones based on UN/LOCODE [http://www.unece.org/cefact/locode/]. Most of
> > exemplar cities by the tz database are covered by LOCODE, with small
> > exceptions.
> >
> > For example, zone "America/New_York" is represented by "usnyc". The
> > mapping data is provided in the file -
> > http://www.unicode.org/repos/cldr/trunk/common/bcp47/timezone.xml
> >
> > With the extension, you can exchange locale data including time zone
> > information with a language tag - for example, "en-US-u-tz-usnyc"
> >
> > I'm wondering if zone.tab can include LOCODE - for example, LOCODE
> > consist from ISO3166 2-letter country code + 3-letter location code.
> >
> > #locode        coordinates        TZ                        comments
> > AD ALV        +4230+00131        Europe/Andorra
> > AE DXB        +2518+05518        Asia/Dubai
> > AF KBL        +3431+06912        Asia/Kabul
> > AG ANU        +1703-06148        America/Antigua
> > ...
> >
> > -Yoshito Umaoka (ICU / CLDR project)
>
> Including LOCODE in zone.tab may or may not be a good idea, but I'm
> trying hard to think why you'd want to encode a time zone in a language
> tag.
>
> --
> -=( Ian Abbott @ MEV Ltd.    E-mail: <abbotti at mev.co.uk>        )=-
> -=( Tel: +44 (0)161 477 1898   FAX: +44 (0)161 718 3587         )=-
>
>
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