export declare function formatDateForDisplay(value: Date | string | number | {
    from?: string;
    to?: string;
} | Date[] | string[] | number[] | undefined, type: string, displayFormat?: string): string | undefined;
export declare function defaultYearRange(centerYear?: number): [number, number];
export declare function formatMonthValue(year: number, month: number): string;
export declare function parseMonthValue(value: string): {
    year: number;
    month: number;
} | undefined;
export declare function formatTimeValue(date: Date): string;
export declare function parseTimeValue(time: string): {
    hours: number;
    minutes: number;
} | undefined;
export declare function toIsoWithTz(date: Date, timezone?: string): string;
export declare function getLocalTimezone(): string;
export declare function extractTimezone(isoString: string): string | undefined;
export declare function toLocalNaive(isoString: string): Date;
export declare function formatWeekValue(date: Date): string;
export declare function parseWeekValue(value: string): {
    year: number;
    week: number;
} | undefined;