zoneinfo-npm

timezone files, always up to date

v23.2.0 URL: https://unpkg.com/zoneinfo-npm@23.2.0

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timezone npm zoneinfo tzdb tzdata tzinfo iana

iana-db-timezones

Auto-generated IANA timezone data with rich metadata, no dependencies, full TypeScript support, and Node/browser compatibility.

v0.2.6 URL: https://unpkg.com/iana-db-timezones@0.2.6/dist/cjs/index.js

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clockwork-tz

Accurate timezone conversions and DST handling with optional deterministic IANA tzdb support

v0.1.0 URL: https://unpkg.com/clockwork-tz@0.1.0/dist/index.cjs

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timezone tz datetime dst daylight-saving iana tzdb date time intl conversion offset

a0-tzmigration-js

A NPM package that helps migration between timezone changes when they happen in the tzdata/zoneinfo/Olson database

v1.0.1 URL: https://unpkg.com/a0-tzmigration-js@1.0.1/lib/index.js

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npm node tzdb timezone migration a0-tzmigration

ream.js

A comprehensive, functional datetime library for JavaScript/TypeScript with immutable data structures, real IANA timezone database support, DST handling, and a plugin system

v1.1.0 URL: https://unpkg.com/ream.js@1.1.0/build/main/index.js

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datetime date time timezone iana dst daylight-saving functional immutable typescript calendar duration formatting recurrence tzdb intl