import { CalendarSystem, CalendarType, CalendarOptions, CalendarCellData } from '../types';
export declare const MS_PER_DAY: number;
export declare const MS_PER_MINUTE: number;
export declare class GregorianCalendar implements CalendarSystem {
    readonly name: CalendarType;
    getWeekDayNames(locale: string, firstDayOfWeek: number, weekDaysFormat: string): string[];
    getMaxDays(date: Date): number;
    getMonthName(monthIndex: number, format?: 'long' | 'short', locale?: string): string;
    addMonths(date: Date, months: number): Date;
    addYears(date: Date, years: number): Date;
    getYear(date: Date): number;
    getMonth(date: Date): number;
    getDay(date: Date): number;
    isSameMonth(date1: Date, date2: Date): boolean;
    isSameYear(date1: Date, date2: Date): boolean;
    isSameDate(date1: Date, date2: Date): boolean;
    getWeekNumber(date: Date): number;
    startOfMonth: (d: Date) => Date;
    endOfMonth: (d: Date) => Date;
    startOfYear: (d: Date) => Date;
    endOfYear: (d: Date) => Date;
    startOfDecade: (d: Date) => Date;
    addDays: (d: Date, n: number) => Date;
    toDate(year: number, month: number, day: number, hour?: number, minute?: number, second?: number): Date;
    getDaysInMonth(year: number, month: number): number;
    getMonthMatrix(baseDate: Date, options?: CalendarOptions): CalendarCellData[][];
    getYearMatrix(baseDate: Date, options?: CalendarOptions): CalendarCellData[][];
    getDecadeMatrix(baseDate: Date, options?: CalendarOptions): CalendarCellData[][];
}