import type { Iso8601, UnixEpoch } from "../types/common.option";
export declare const dateToUnix: (date: Date) => UnixEpoch | null;
export declare const unixToDate: (unix: UnixEpoch) => Date | null;
export declare const dateToIso8601: (date: Date) => Iso8601;
export declare const iso8601ToDate: (iso8601: Iso8601) => Date;
export declare const nowUnix: () => UnixEpoch;
export declare const nowIso8601: () => Iso8601;