interface FormatOptions {
    time?: boolean;
    asObject?: boolean;
}
interface ObjectifiedDate {
    Y: number;
    M: number;
    D: number;
    h?: number;
    m?: number;
    s?: number;
}
declare const isDateObject: (d: unknown) => d is Date;
declare const FromTime: {
    jpnDayMap: Record<number, string>;
    toMs: (h?: number, m?: number, s?: number, ms?: number) => number;
    toSeconds: (h?: number, m?: number, s?: number, ms?: number) => number;
    toMinutes: (h?: number, m?: number, s?: number, ms?: number) => number;
    toHours: (h?: number, m?: number, s?: number, ms?: number) => number;
    /**
     * Format a Date into "YYYY-MM-DD HH:mm:ss" (UTC).
     * @param date Date object
     * @param options time: include time portion; asObject: return ObjectifiedDate
     */
    format(date: Date, options?: FormatOptions): string | ObjectifiedDate;
    /**
     * Convert a date string to the shortest readable locale string.
     * Year > Month > Day > Same day > time only.
     * Currently supports "jpn" only.
     * @param input Date string
     * @param locale Language code (default "jpn")
     */
    toDateTimeShortLocale(input: string, locale?: string): string;
};
declare class cDate {
    private _date;
    constructor(date: string | Date);
    /**
     * Add N months to the stored date.
     * @param n Number of months to add
     */
    addMonth(n: number): void;
    get dateTime(): string;
    get date(): string;
    get time(): string;
}

export { type FormatOptions, FromTime, type ObjectifiedDate, cDate, isDateObject };