export interface WeekDay {
    readonly title: string;
    readonly abbr: string;
}
export declare function useWeekDays(weekStart: number): WeekDay[];
export declare function createDate(date?: DateObject): Date;
export declare function getDateObject(date?: Date): DateObject;
export interface DateObject {
    year: number;
    month: number;
    day: number;
}
export declare function toUTCString(date: Date): string;
export declare function generateDaysInMonthArray(month: number, monthStartsAt: number, weeksInMonth: number, year: number): Date[][];