import type { CalendarValue } from '../Calendar/types';
export declare const extractFirstDate: (val: CalendarValue | null | undefined) => Date | undefined;
export declare const dateUtils: {
    startOfDay: (date: Date) => Date;
    endOfDay: (date: Date) => Date;
    startOfMonth: (date: Date) => Date;
    endOfMonth: (date: Date) => Date;
    startOfYear: (date: Date) => Date;
    endOfYear: (date: Date) => Date;
    addDays: (date: Date, days: number) => Date;
    addMonths: (date: Date, months: number) => Date;
    addYears: (date: Date, years: number) => Date;
    isSameDay: (date1: Date, date2: Date) => boolean;
    isSameMonth: (date1: Date, date2: Date) => boolean;
    isSameYear: (date1: Date, date2: Date) => boolean;
    isToday: (date: Date) => boolean;
    isWeekend: (date: Date, weekendDays?: number[]) => boolean;
    isInRange: (date: Date, start: Date | null, end: Date | null) => boolean;
    isBetween: (date: Date, start: Date | null, end: Date | null) => boolean;
    getDaysInMonth: (date: Date) => number;
    getMonthCalendar: (date: Date, firstDayOfWeek?: number) => Date[][];
    getMonthNames: (locale?: string) => string[];
    getWeekdayNames: (locale?: string, format?: "long" | "short" | "narrow") => string[];
    formatDate: (date: Date, format: string, locale?: string) => string;
    parseDate: (value: string) => Date | null;
    getDecadeRange: (year: number) => [number, number];
    getYearsInDecade: (date: Date) => number[];
    clampDate: (date: Date, minDate?: Date, maxDate?: Date) => Date;
    isDateDisabled: (date: Date, minDate?: Date, maxDate?: Date, excludeDate?: (date: Date) => boolean) => boolean;
};