@pacote/computus/lib/cjs/index.d.ts

Determine the calendar date of the Easter holiday.

/**
 * This function takes a year and returns a `Date` object with the Gregorian
 * calendar Easter day on that year at midnight.
 *
 * The function uses a version of the Meeus/Jones/Butcher algorithm published
 * by _New Scientist_ on 30 March 1961.
 *
 * @example
 * ```typescript
 * import { gregorian } from '@pacote/computus'
 *
 * gregorian(2020) // .toLocaleDateString() => '4/12/2020'
 * ```
 *
 * @param year Year.
 *
 * @returns Easter date for the provided year.
 */
export declare function gregorian(year: number): Date;
/**
 * This function takes a year and returns a `Date` object with the Eastern
 * Orthodox Easter day on that year at midnight. Please note that this date
 * is returned for the Gregorian calendar, 13 days (as of 1900 through 2099)
 * after the Julian date.
 *
 * The function implements the Jean Meeus algorithm from his book
 * _Astronomical Algorithms_ (1991).
 *
 * @example
 * ```typescript
 * import { julian } from '@pacote/computus'
 *
 * julian(2020) // .toLocaleDateString() => '4/19/2020'
 * ```
 *
 * @param year Year.
 *
 * @returns Eastern Orthodox Easter date for the provided year.
 */
export declare function julian(year: number): Date;