CLDR is the Common Locale Data Repository, a database of localization information published by the Unicode Consortium.
The CLDR BCP47 Timezone library is a Racket high-level interface to the timezone.xml file published by the Unicode Consortium as part of CLDR. Unlike most of the packages in the cldr collection, this one is not based on a JSON data set, because the data isn’t available as JSON.
|(require cldr/bcp47/timezone)||package: cldr-bcp47|
> (tzid->bcp47-timezone-id "America/New_York")
> (tzid->bcp47-timezone-id "Fillory/Whitespire")