export declare const EXTENDED_TIMESTAMP_ID = 21589;
export declare const NTFS_TIMESTAMP_ID = 10;
export interface ZipExtraTimestamps {
    /** Access time. */
    atime?: Date;
    /** Metadata change time (Unix ctime). */
    ctime?: Date;
    /** Creation time (Windows/NTFS "btime"). */
    birthTime?: Date;
}
/**
 * DOS date/time helpers for ZIP files.
 */
/**
 * Convert Date to DOS time/date fields.
 *
 * Note: uses local time fields (getHours/getMinutes/getSeconds),
 * which matches common ZIP writer behavior.
 */
export declare function dateToDos(date: Date): [number, number];
/**
 * Parse DOS date/time to JS Date.
 */
export declare function parseDosDateTimeUTC(date: number, time?: number): Date;
/**
 * How to write timestamps in ZIP headers.
 *
 * ZIP always has DOS date/time fields; `dos+utc` additionally writes the Info-ZIP
 * extended timestamp extra field (0x5455) for a UTC mtime.
 */
/**
 * - "dos": DOS date/time only
 * - "dos+utc": also writes Info-ZIP extended timestamp (0x5455) for UTC mtime (and optional atime/ctime)
 * - "dos+utc+ntfs": additionally writes NTFS timestamps (0x000a) including creation time
 */
export type ZipTimestampMode = "dos" | "dos+utc" | "dos+utc+ntfs";
export declare function resolveZipLastModifiedDateFromUnixSeconds(dosDate: number, dosTime: number, mtimeUnixSeconds?: number): Date;
export declare function resolveZipLastModifiedDateFromExtraField(dosDate: number, dosTime: number, extraField: Uint8Array): Date;
export declare function buildZipTimestampExtraField(modTime: Date, mode: ZipTimestampMode, extra?: ZipExtraTimestamps): Uint8Array;
export declare function dateToZipDos(modTime: Date): {
    dosTime: number;
    dosDate: number;
};