/**
 * 克隆时间
 */
import "./_dnt.polyfills.js";
export declare const date_clone: (date: Date) => Date;
/**
 * 人类可读的时间对象
 */
export type Duration = {
    year: number;
    month: number;
    day: number;
    minutes: number;
    seconds: number;
    milliseconds: number;
};
/**
 * 向一个 date 中添加时间
 * 可以是负数
 */
export declare const date_add_duration: (date: Date, duration: Partial<Duration>) => Date;
/**
 * 将一个 date 解码成 duration 对象
 */
export declare const date_to_duration: (date: Date) => Duration;
/**
 * 对一个 date 对象进行写入
 */
export declare const date_set_duration: (date: Date, duration: Partial<Duration>) => Date;
export type FormatifyDate = {
    year: string;
    month: string;
    day: string;
    hour: string;
    minute: string;
    second: string;
    hour12: string;
} & ({
    dayPart: "PM";
    am: false;
    pm: true;
} | {
    dayPart: "AM";
    am: true;
    pm: false;
});
/**将日期转化成易于格式化的信息 */
export declare const date_formatify: (date: string | number | Date) => FormatifyDate;
/**将日期根据指定模板进行格式化 */
export declare const date_format: (format: string, date: string | number | Date) => string;
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