/**
 * --------------------------------------------
 * Date formats
 * --------------------------------------------
 */
export declare const UI_INPUT_FORMATS: readonly ["D/M/YYYY", "DD/MM/YYYY"];
/**
 * --------------------------------------------
 * Validation helpers
 * --------------------------------------------
 */
export declare function isValidUiDate(value?: string): boolean;
/**
 * --------------------------------------------
 * Transform helpers
 * --------------------------------------------
 */
/**
 * DD/MM/YYYY -> YYYY-MM-DD
 *
 * @export
 * @param {string} [value]
 * @return {*}  {(string | undefined)}
 */
export declare function uiDateToApi(value?: string): string | undefined;
/**
 * YYYY-MM-DD -> DD/MM/YYYY
 *
 * @export
 * @param {string} [value]
 * @return {*}  {(string | undefined)}
 */
export declare function apiDateToUi(value?: string): string | undefined;
/**
 * TS -> DD/MM/YYYY
 *
 * @export
 * @param {(string | Date)} [value]
 * @return {*}  {(string | undefined)}
 */
export declare function apiTimestampToUiDate(value?: string | Date): string | undefined;
/**
 * TS -> DD/MM/YYYY HH:mm
 *
 * @export
 * @param {(string | Date)} [value]
 * @return {*}  {(string | undefined)}
 */
export declare function apiTimestampToUiDateTime(value?: string | Date): string | undefined;
/**
 * --------------------------------------------
 * Display helpers
 * --------------------------------------------
 */
export declare function formatDateOrUnset(value?: string): string;
