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Question1 answer3,650 followingPosted 23 Jul 2026, 01:39 UTC94.2K views875 votes

AdonisJS v5: Global Timezone Config vs. Lucid Date Serialization

The primary objective is to guarantee that date values stored in the database, cast by Lucid, and exposed through API responses all reflect the same regional time zone defined in the framework’s global configuration. AdonisJS v5 ships with Luxon integration, and the config/app.ts file exposes a 'timezone' key that influences date parsing and formatting. Howe

Community & Careers · Editorial question

Community & Careers

Question1 answer992 followingPosted 26 Feb 2026, 20:53 UTC91.2K views657 votes

owner answered

Express + Luxon: Validating Client-Supplied IANA Timezones at the Middleware Boundary

Integration Goal An Express API uses a small middleware to read a client-provided x-user-timezone header, resolve it to an IANA zone string, and attach it as req.tz for downstream route handlers. Response serialization relies on Luxon’s DateTime.fromJSDate(date).setZone(req.tz).toISO() to emit timestamps in the user’s local offset. Constraints and Uncertaint

Community & Careers · Editorial question

express luxon timezone