/**
 * ```typescript
 * const r = Humanity.dateTime.difference(1656532800000, 1659211200000);
 * console.log(r);
 * // Output: 4 weeks ago
 * ```
 * @param dateFirst
 * @param dateAfter
 * @returns string
 */
declare function difference(dateFirst: Date, dateAfter: Date): string;
declare const DateTime: {
    difference: typeof difference;
};
export default DateTime;