import { TypeDate } from '../types';
export declare const TimeUnits: readonly ["hour", "day", "week", "month", "year"];
export type TypeTimeUnit = typeof TimeUnits[number];
/**
 * 获取某个时间的 整年|整月|整日|整时|整分 时间对象
 * @method getTimeSplit
 * @param {Number|Date} time 实际时间
 * @param {String} type 单位时间类型，可选 ['year', 'month', 'week', 'day', 'hour']
 * @return {Date} 时间整点对象
 * @example
 * import { getTimeSplit } from '@spore-ui/tskit';
 * new Date(
 *   getTimeSplit(
 *     '2018-09-20',
 *     'month'
 *   )
 * ).toGMTString();
 * // Sat Sep 01 2018 00:00:00 GMT+0800 (中国标准时间)
 *
 * new Date(
 *   getTimeSplit(
 *     '2018-09-20 19:23:36',
 *     'hour'
 *   )
 * ).toGMTString();
 * // Thu Sep 20 2018 19:00:00 GMT+0800 (中国标准时间)
 */
export declare function getTimeSplit(time: TypeDate, type?: TypeTimeUnit): Date;
export default getTimeSplit;