Regarding Time zone name usage

[Manikandan Ramalingam Kandaswamy]

Dear all,

I found the below use cases based on tr35 timezone symbols table
<http://www.unicode.org/reports/tr35/tr35-dates.html#dfst-zone>. It would
be less confusing if we can update Time Zones
<http://cldr.unicode.org/translation/timezones> documentation.

1.  The `z`, `v` and `V` formats should have the formatted strings in
TimeZoneNames.json for `regionFormat`, `regionFormat-type-standard` and `
regionFormat-type-daylight`
2.  If the formatted timezone name is not found the the fallback is as
follows
   a. for `z...zzz` fall back to `O` (The short localized GMT format.)
   b. for `zzzz` fall back to `OOOO` (The long localized GMT format.)
   b. for `v` and `vvvv` fall back to  `VVVV` (The generic location format.)
   c. for `VVVV` if the `exemplarCity` not found fall back to `OOOO` (The
long localized GMT format.)
   d. for `VVV` format if the `exemplarCity` not found fall back to
`Etc/Unknown` time zone.

It would be helpful if Time Zones
<http://cldr.unicode.org/translation/timezones> documentation update with
the above information.

Thanks you for your support.

-Mani

On Thu, Mar 2, 2017 at 10:09 AM, Manikandan Ramalingam Kandaswamy <
rajavelmani at gmail.com> wrote:

> Hi CLDR,
>
>
>
> I need some clarification on using time zone names spec.
>
>
>
> I am implementing the date/time format for date symbols `zzzz` and I have
> questions on the regarding the time zone format spec
> <http://cldr.unicode.org/translation/timezones>.
>
>
>
> I am focusing on regionFormat-standard and regionFormat-daylight
> <https://github.com/unicode-cldr/cldr-dates-full/blob/master/main/en/timeZoneNames.json#L17-L18>
> related to `zzzz`  format “{0} Standard Time” *or* “{COUNTRY} Standard
> Time / {CITY} Standard Time”.
>
>
>
> Based on tr35 documentation
> <http://www.unicode.org/reports/tr35/tr35-dates.html#Using_Time_Zone_Names>
> spec I use metaZone and golden Zone in TimeZoneNames. But, I have these
> questions which I could not get the answers from tr35 documentation
> <http://www.unicode.org/reports/tr35/tr35-dates.html#Using_Time_Zone_Names>
> .
>
> ·      Is there any time zone which is not in a metaZone?
>
> ·      If there is a time zone which is not in a metaZone
>
> o   Where is the localized COUNTRY or CITY name for constructing “{COUNTRY}
> Standard Time / {CITY} Standard Time?
>
> o   Should I use exemplarCity in TimeZoneNames.json
> <https://github.com/unicode-cldr/cldr-dates-full/blob/master/main/en/timeZoneNames.json#L23>
> ?
>
>
>
> Secondly,  for existing metaZone
> <https://github.com/unicode-cldr/cldr-core/blob/master/supplemental/metaZones.json#L8>
> in TimeZoneNames for `z…zzz` there are cases where there is no short time
> zone names like for Asia/Calcutta
> <https://github.com/unicode-cldr/cldr-dates-full/blob/master/main/en/timeZoneNames.json#L1896>.
> In this case, I have these questions to be clarified
>
> ·      Should I fall back to “O” (GMT) format?
>
> ·      Can we have some algorithm in zone format spec
> <http://cldr.unicode.org/translation/timezones> about short time zone
> name usage?
>
> Can someone help me to clarify the above questions?
>
>
> Thanks
>
> Mani
>
>
>
>
>
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