export declare class TimeUnit {
    readonly milliseconds: number;
    readonly longName: string;
    readonly shortName: string;
    constructor(milliseconds: number, longName: string, shortName: string);
}
export declare class Time {
    static readonly UNITS: {
        MILLISECOND: {
            milliseconds: number;
            longName: string;
            shortName: string;
        };
        SECOND: {
            milliseconds: number;
            longName: string;
            shortName: string;
        };
        MINUTE: {
            milliseconds: number;
            longName: string;
            shortName: string;
        };
        HOUR: {
            milliseconds: number;
            longName: string;
            shortName: string;
        };
        DAY: {
            milliseconds: number;
            longName: string;
            shortName: string;
        };
        MONTH: {
            milliseconds: number;
            longName: string;
            shortName: string;
        };
        YEAR: {
            milliseconds: number;
            longName: string;
            shortName: string;
        };
    };
    static humanizeTimeSince(since: Date, short?: boolean, skipOneUnitNumber?: boolean, units?: TimeUnit[]): string;
    static humanizeTimeTo(to: Date, short?: boolean, skipOneUnitNumber?: boolean, units?: TimeUnit[]): string;
    static humanizeDuration(duration: number, short?: boolean, skipNumberTextPartWhenSingular?: boolean, units?: TimeUnit[]): string;
}