import type { UnixUnit } from "../validate/index.js";
/**
 * Return the month (1-12) from a unix epoch value.
 *
 * - Delegates to {@link parseUnitFromUnix} with unit "month".
 * - Returns "" for invalid input.
 *
 * @param value unix epoch in milliseconds or seconds (number or string)
 * @param options optional: epochUnit ("seconds" | "milliseconds"), timeZone (IANA)
 * @returns Month (01-12) or "" on invalid input
 *
 * @example parseMonthFromUnix(1700000000000) // "09"
 * @example parseMonthFromUnix(1704067200000) // "01"
 * @example parseMonthFromUnix(-86400, { epochUnit: "seconds" }) // "12"
 */
export declare function parseMonthFromUnix(value: number | string, options?: {
    epochUnit?: UnixUnit;
    timeZone?: string;
}): string;