export declare enum PeriodRelation {
    After = 0,
    StartTouching = 1,
    StartInside = 2,
    InsideStartTouching = 3,
    EnclosingStartTouching = 4,
    Enclosing = 5,
    EnclosingEndTouching = 6,
    ExactMatch = 7,
    Inside = 8,
    InsideEndTouching = 9,
    EndInside = 10,
    EndTouching = 11,
    Before = 12
}
export declare class OverlapHelper {
    static getRelation(start1: Date, end1: Date, start2: Date, end2: Date): PeriodRelation;
    static hasInside(start: Date, end: Date, date: Date): boolean;
    static hasInside2(start1: Date, end1: Date, start2: Date, end2: Date): boolean;
    static intersects(start1: Date, end1: Date, start2: Date, end2: Date): boolean;
    static overlaps(start1: Date, end1: Date, start2: Date, end2: Date): boolean;
}