export declare namespace humanDate {
    /**
     * Format: HH:mm:ss
     */
    function time(date: Date | string | number): string;
    /**
     * Format: YYYY-MM-dd
     *
     * separator can change
     */
    function date(date: Date | string | number, sp?: string): string;
    /**
     * Format: YYYY-MM-dd HH:mm:ss
     */
    function datetime(date: Date | string | number): string;
    type ITimeFormatter = (s: number) => string;
    interface IFormatters {
        ms: ITimeFormatter;
        s: ITimeFormatter;
        m: ITimeFormatter;
        h: ITimeFormatter;
        d: ITimeFormatter;
    }
    /**
     * set format for time delta
     */
    function setLocaleFormatter(formatter: Partial<IFormatters>): void;
    /**
     * format time delta (in ms) to string, like: '1d'
     * when delta<=0, returns '0s'
     *
     * format can set by `setLocaleFormatter`
     * day is the largest unit
     */
    function deltaTiny(from: number, to: number): string;
    function deltaTiny(ms: number): string;
    /**
     * format time delta (in ms) to string, like: '1d10m42s'
     * only return XXXms when delta<1min
     * when delta<=0, returns '0s'
     *
     * format can set by `setLocaleFormatter`
     * day is the largest unit
     */
    function delta(from: number, to: number): string;
    function delta(deltaMs: number): string;
}
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