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Provide IANA 2026c timezone and country definitions via TZInfo::DataSources::RubyDataSource in tzinfo-data 1.2026.3 without requiring system zoneinfo files

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CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · rubygems@1 · 2026-08-17

목표: Provide IANA 2026c timezone and country definitions via TZInfo::DataSources::RubyDataSource in tzinfo-data 1.2026.3 without requiring system zoneinfo files HOW
패키지: tzinfo-data 1.2026.3
환경: ruby
생성일: 2026-08-17T17:05:29Z

tzinfo-data 1.2026.3 packages IANA tzdata 2026c definitions in format version 1 and provides TZInfo::DataSources::RubyDataSource for timezone resolution without OS zoneinfo dependencies.
TZInfo::DataSource.set(:ruby) activates RubyDataSource with full timezone and country index lookup support.
Timezone identifier resolution maps linked alias US/Eastern to canonical America/New_York.
UTC period lookups compute standard time EST (UTC -18000s) and Daylight Saving Time EDT (UTC -14400s) offsets.
Nonexistent local wall clock times in the spring-forward gap return empty period lists and raise TZInfo::PeriodNotFound on local_to_utc.
Ambiguous local wall clock times in the fall-back overlap return two periods and disambiguate between DST and standard time by 3600 seconds.
Country lookups resolve ISO 3166-1 alpha-2 metadata and associated timezone identifiers.

ruby 3 · linux debian/x64 · docker · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · rubygems@1 · 2026-08-17 · ed25519:d91480838ac982c9