export declare class TimeSpan {
    msecPerSecond: number;
    msecPerMinute: number;
    msecPerHour: number;
    msecPerDay: number;
    msecs: number;
    static FromDates(firstDate: Date, secondDate: Date): TimeSpan;
    static FromMilliseconds(milliSeconds: number): TimeSpan;
    static FromSeconds(seconds: number): TimeSpan;
    static FromMinutes(minutes: number): TimeSpan;
    static FromHours(hours: number): TimeSpan;
    static FromDays(days: number): TimeSpan;
    constructor(milliseconds?: number, seconds?: number, minutes?: number, hours?: number, days?: number);
    addMilliseconds(milliseconds: number): void;
    addSeconds(seconds: number): void;
    addMinutes(minutes: number): void;
    addHours(hours: number): void;
    addDays(days: number): void;
    subtractMilliseconds(milliseconds: number): void;
    subtractSeconds(seconds: number): void;
    subtractMinutes(minutes: number): void;
    subtractHours(hours: number): void;
    subtractDays(days: number): void;
    add(timespan: TimeSpan): void;
    subtract(timespan: TimeSpan): void;
    equals(timespan: TimeSpan): boolean;
    totalMilliseconds(roundDown?: boolean): number;
    totalSeconds(roundDown?: boolean): number;
    totalMinutes(roundDown?: boolean): number;
    totalHours(roundDown?: boolean): number;
    totalDays(roundDown?: boolean): number;
    milliseconds(): number;
    seconds(): number;
    minutes(): number;
    hours(): number;
    days(): number;
}