[tz] OpenJDK/CLDR/ICU/Joda issues with Ireland change

Brian Inglis Brian.Inglis at SystematicSw.ab.ca
Fri Jan 26 03:05:52 UTC 2018

On 2018-01-25 06:00, Lester Caine wrote:
> On 25/01/18 02:48, Yoshito Umaoka wrote:
>> CLDR does not have time zone names for dates before 1990. Historic
>> zone names never used in a last few decades are not included. This is mainly
>> because reducing overhead of managing localized names. Our primary focus
>> is to provide good localized display names in modern software, not trying
>> to provide every possible names historically used.
> Which is only exacerbating the problem ... if CLDR is unable to support pre 1990
> dates properly then we do need another service that can cope! Genealogical data
> and history in general can't simply be swept under the carpet ... TZ while not
> promoting pre 1970 data does at least have it available. Now I know CLDR does
> not support historic material I can make sure I avoid using it at all!

CLDR does not do data, only names, and like recent tzdb reversals on support of
invented abbreviations, if CLDR can not provide a name, it provides a UTC offset

Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada

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