import { DayLiteUnits } from './types';
export declare function getStartOfWeek(weekday: number, day: number): number;
export declare function getDaysInMonth(year: number, month: number): number;
export declare function nextMonths(date: Date, value: number): Date;
export declare function nextYears(date: Date, value: number): Date;
export declare function prevMonths(date: Date, value: number): Date;
export declare function prevYears(date: Date, value: number): Date;
export declare function orderUnits(units: DayLiteUnits[]): DayLiteUnits[];