import { format } from "date-fns";
export declare function getSmallerUnitCount(unit: string, lengthUnit: string, date?: Date): number;
export declare function isCorrectLengthUnit(minUnit: string, lengthUnit: string): boolean;
export declare function getDiffer(unit: string): {
    (start: Date, end: Date, lengthUnit?: string, unitSize?: boolean): number;
};
export declare function getAdder(unit: string): {
    (start: number | Date, step: number): Date;
};
export declare function getUnitStart(unit: string, start: Date): Date;
export declare function getUnitEnd(unit: string, date: Date): Date;
export declare function isSameUnit(unit: string, a: Date, b: Date): boolean;
export { format };