import * as holiday_jp from "@holiday-jp/holiday_jp";
import dayjs from "dayjs";
export type Holiday = Readonly<{
    /**
     * Expression of date formatted in "YYYY-MM-DD"
     */
    date: string;
} & Omit<holiday_jp.Holiday, "date">>;
/**
 * Union type of multiple values expressing date-time.
 *
 * - `number` : Unix timestamp in milliseconds
 * - `Date` : Build-in type
 * - `Dayjs` : dayjs is also supported
 * - `string` : Parse the given string in ISO 8601 format. For more details, please see [Day.js - Parse](https://day.js.org/docs/en/parse/string)
 */
export type DateLike = number | Date | dayjs.Dayjs | string;
export declare const JST_TIMEZONE: "Asia/Tokyo";
/**
 * Checks whether the given date is holiday in Japan.
 *
 * The given date will be formatted in "YYYY-MM-DD" with "Asia/Tokyo"(+0900) timezone,
 * then used as key when searching for holidays.
 *
 * If ISO 8601 string given, parsed as "Asia/Tokyo" at first.
 *
 * @param date A Date-like value to be checked
 * @returns True if the given date is holiday otherwise false
 */
export declare function isHoliday(date: DateLike): boolean;
/**
 * Finds all the holidays between the given dates
 *
 * Each holiday "YYYY-MM-DD" will be compared with the given `start` and `end`
 * in unit of date, where all the date values are manipulated "Asia/Tokyo".
 * Both `start` and `end` are inclusive.
 *
 * @param start Start date to find holiday
 * @param end End date to find holiday
 * @returns The holidays list between start and end, or empty list if none.
 */
export declare function between(start: DateLike, end: DateLike): Holiday[];
/**
 * All the holidays
 *
 * This is a reference to the original record defined in @holiday-jp/holiday_jp
 */
export declare const holidays: Readonly<Record<string, Holiday>>;