export type ZonedDateTimeInput = {
    year: number;
    month: number;
    day: number;
    hour: number;
    minute?: number;
    second?: number;
};
export type LocalTimeDisambiguation = 'reject' | 'earlier' | 'later' | 'compatible';
export declare const DEFAULT_DIVINATION_TIMEZONE = "Asia/Shanghai";
/** Calendar-engine ephemerides use UTC+8, not Shanghai's historical civil offsets. */
export declare const CALENDAR_TIMEZONE = "Etc/GMT-8";
export declare function getZonedDateTimeParts(date: Date, timeZone: string): Required<ZonedDateTimeInput>;
export declare function getTimeZoneOffsetMinutes(timeZone: string, date: Date): number;
/** Resolve a wall clock exactly; DST gaps and overlaps require an explicit policy. */
export declare function zonedTimeToUtc(input: ZonedDateTimeInput, timeZone: string, disambiguation?: LocalTimeDisambiguation): Date;
/** Adapter for libraries that consume local Date getters instead of civil fields. */
export declare function zonedWallClockToSystemDate(input: ZonedDateTimeInput, timeZone: string, disambiguation?: LocalTimeDisambiguation): Date;
/** Preserve an already-resolved instant, including the later occurrence of a DST fold. */
export declare function zonedInstantToSystemDate(instant: Date, timeZone: string): Date;
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