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@burglekitt/gmt

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Temporal-based date and time utilities with timezone support and polyfill integration

github.com/burglekitt/gmt

burglekitt/gmt

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/** * Resolve a timezone string for the Unix/UTC formatters. * * - `"local"` → the system timezone via `getSystemTimeZone()`. * - A valid IANA timezone identifier → returned as-is. * - Anything else (undefined, empty, invalid name, typo) → `"UTC"`. * * The UTC fallback is intentional: `formatUnix` / `formatUtc` / the relative * formatters expose `timeZone` as an *optional* convenience, so we degrade * gracefully when callers pass nothing or pass a typo. Callers that need * strict timezone validation should use `isValidTimeZone()` themselves * before calling these formatters. */ export declare function normalizeTimeZone(tz?: string): string;