import { LocalTime, LocalDate, LocalDateTime } from '@js-joda/core';
import type { TimeOnly, DateOnly } from '../interfaces/dates';
/**
 * Parse a TimeOnly string (HH:mm or HH:mm:ss) into a LocalTime.
 * @param {string} value - The time string to parse.
 * @returns {LocalTime | null} The parsed LocalTime, or null if invalid.
 */
export declare function parseTimeOnly(value: string): LocalTime | null;
/**
 * Parse a DateOnly string (YYYY-MM-DD) into a LocalDate.
 * @param {string} value - The date string to parse.
 * @returns {LocalDate | null} The parsed LocalDate, or null if invalid.
 */
export declare function parseDateOnly(value: string): LocalDate | null;
/**
 * Parse an ISO-8601 date-time string into a LocalDateTime.
 * @param {string} value - The date-time string to parse.
 * @returns {LocalDateTime | null} The parsed LocalDateTime, or null if invalid.
 */
export declare function parseLocalDateTime(value: string): LocalDateTime | null;
/**
 * Format a LocalTime as a TimeOnly string (always HH:mm:ss).
 * @param {LocalTime} time - The LocalTime to format.
 * @returns {TimeOnly} The formatted TimeOnly string.
 */
export declare function formatTimeOnly(time: LocalTime): TimeOnly;
/**
 * Format a LocalDate as a DateOnly string (YYYY-MM-DD).
 * @param {LocalDate} date - The LocalDate to format.
 * @returns {DateOnly} The formatted DateOnly string.
 */
export declare function formatDateOnly(date: LocalDate): DateOnly;
/**
 * Format a LocalDateTime as an ISO-8601 string.
 * @param {LocalDateTime} dt - The LocalDateTime to format.
 * @returns {string} The formatted ISO-8601 string.
 */
export declare function formatLocalDateTime(dt: LocalDateTime): string;
/**
 * Returns true if the string is a valid TimeOnly value.
 * @param {string} value - The string to validate.
 * @returns {boolean} Whether the string is a valid TimeOnly.
 */
export declare function isValidTimeOnly(value: string): value is TimeOnly;
/**
 * Returns true if the string is a valid DateOnly value.
 * @param {string} value - The string to validate.
 * @returns {boolean} Whether the string is a valid DateOnly.
 */
export declare function isValidDateOnly(value: string): value is DateOnly;
/**
 * Returns true if time `a` is before time `b`.
 * @param {TimeOnly} a - The first time to compare.
 * @param {TimeOnly} b - The second time to compare.
 * @returns {boolean} Whether `a` is before `b`.
 */
export declare function isTimeBefore(a: TimeOnly, b: TimeOnly): boolean;
/**
 * Returns true if time `a` is after time `b`.
 * @param {TimeOnly} a - The first time to compare.
 * @param {TimeOnly} b - The second time to compare.
 * @returns {boolean} Whether `a` is after `b`.
 */
export declare function isTimeAfter(a: TimeOnly, b: TimeOnly): boolean;
/**
 * Returns true if date `a` is before date `b`.
 * @param {DateOnly} a - The first date to compare.
 * @param {DateOnly} b - The second date to compare.
 * @returns {boolean} Whether `a` is before `b`.
 */
export declare function isDateBefore(a: DateOnly, b: DateOnly): boolean;
/**
 * Returns true if date `a` is after date `b`.
 * @param {DateOnly} a - The first date to compare.
 * @param {DateOnly} b - The second date to compare.
 * @returns {boolean} Whether `a` is after `b`.
 */
export declare function isDateAfter(a: DateOnly, b: DateOnly): boolean;
export { LocalTime, LocalDate, LocalDateTime } from '@js-joda/core';