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@burglekitt/gmt

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

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/** * Convert an ISO 8601 zoned datetime string to a UTC Instant string (ISO). * * - Uses Temporal.ZonedDateTime.toInstant to convert. * - Returns "" for invalid input. * * @param value zoned ISO 8601 datetime string * @returns UTC Instant ISO string or "" when invalid * * @example convertZonedToUtc("2024-02-29T12:34:56.789+00:00[UTC]") // "2024-02-29T12:34:56.789Z" * @example convertZonedToUtc("invalid") // "" */ export declare function convertZonedToUtc(value: string): string;