export declare const isDateOnlyString: (value: unknown) => value is string;
export declare const parseDateOnlyToLocalDate: (dateOnly: string) => Date;
type DateInput = string | Date;
export declare const normalizeDateInputToLocalDate: (value: DateInput) => Date;
export declare const toValidDateOrNull: (value?: DateInput | null) => Date | null;
export declare const formatDateInputToDateOnly: (value: DateInput) => string;
type DateDisplayInput = string | Date;
export declare const formatDateForDisplay: (value: DateDisplayInput, locale?: string, options?: Intl.DateTimeFormatOptions) => string;
export {};