import { BsDate, CalendarAdapter, DateRange, DateValue } from '../types.js';
export declare function startOfLocalDay(date: Date): Date;
export declare function createDateValue(adapter: CalendarAdapter, adDate: Date): DateValue;
export declare function dateValueFromBs(adapter: CalendarAdapter, bs: BsDate): DateValue;
export declare function compareDateValue(a: DateValue, b: DateValue): number;
export declare function isSameDateValue(a: DateValue | null | undefined, b: DateValue | null | undefined): boolean;
export declare function createDateRange(start: DateValue, end: DateValue): DateRange;
export declare function isWithinRange(range: DateRange, date: DateValue): boolean;