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Temporal: The 9-year journey to fix time in JavaScript

by Jason Williams bloomberg.github.io published 2026-03-1117 min read

JavaScript's Date object has been a source of bugs for three decades. Temporal, which just reached Stage 4, is a modern replacement with immutable types, first-class time zone and calendar support, and nanosecond precision. This is the story of how Bloomberg, Igalia, and the TC39 community spent nine years turning…
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Mar 11, 2026Temporal: The 9-year journey to fix time in JavaScript by robpalmer790266

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