export declare const DATE_TIME_FORMAT = "YYYY-MM-DD HH:mm:ss";
export declare const DATE_FORMAT = "YYYY-MM-DD";
export declare const SHORT_DATE_FORMAT = "MM-DD";
export declare const TIME_FORMAT = "HH:mm:ss";
export declare function getDateTimeString(date?: any): string;
export declare function formatToDateTime(date?: any, format?: string): string;
export declare function formatUnixToDateTime(date: number, format?: string): string;
export declare function formatToDate(date?: any, format?: string): string;
export declare function formatToShortDate(date?: any, format?: string): string;
export declare function formatToTime(date?: any, format?: string): string;
export declare function getDays(date: any): number;
export declare function getAge(date: any): number;
export declare function getAgeByYear(year: number): number;
/**
   * 获取指定日期的开始和结束时间
   * YYYY-MM-DD 00:00:00
   * YYYY-MM-DD 23:59:59
   * @param date
   * @returns [begin,end,middle]
   */
export declare function getDateRange(date?: any): Date[];
/**
 * 获取日期的 00:00:00
 * @param date
 * @returns
 */
export declare function getDateBegin(date?: any): Date;
/**
 * 获取日期的 23:59:59
 * @param date
 * @returns
 */
export declare function getDateEnd(date?: any): Date;
/**
 * 获取日期的中午12点
 * @param date
 * @returns
 */
export declare function getDateMiddle(date?: any): Date;
/**
  * 获取指定日期所在月的开始和结束
  * YYYY-MM-DD 00:00:00
  * YYYY-MM-DD 23:59:59
  * @param date
  * @returns [begin,end]
  */
export declare function getMonthRange(date: any): Date[];
/**
  * 获取指定日期所在周的开始和结束
  * YYYY-MM-DD 00:00:00
  * YYYY-MM-DD 23:59:59
  * @param date
  * @returns [begin,end]
  */
export declare function getWeekRange(date: any): Date[];
export declare function getDateRangeString(input: any): string;
export declare function formatSeconds(seconds: number): string;
export declare function formatMilliseconds(milliseconds: any): string;