Colombian Holidays

TypeScript module to work with Colombian holidays.

Installation

npm install colombian-holidays

Usage

Import each helper from its dedicated subpath (ESM only):

import { FIRST_HOLIDAY_YEAR, LAST_HOLIDAY_YEAR } from "colombian-holidays/constants";
import { getHolidaysByYear } from "colombian-holidays/getHolidaysByYear";
import { getHoliday } from "colombian-holidays/getHoliday";
import { isHoliday } from "colombian-holidays/isHoliday";
import { holidaysWithinInterval } from "colombian-holidays/holidaysWithinInterval";

The supported year range is from FIRST_HOLIDAY_YEAR to LAST_HOLIDAY_YEAR.

console.log(FIRST_HOLIDAY_YEAR); // 1583
console.log(LAST_HOLIDAY_YEAR); // 4099

All date comparisons are done in UTC.

Public API

getHolidaysByYear

Returns all Colombian holidays for a given year.

import { getHolidaysByYear } from "colombian-holidays/getHolidaysByYear";

const holidays = getHolidaysByYear(2025);

Throws when the year is out of range:

getHolidaysByYear(1582);
// Error: The year should be between 1583 and 4099

Return native Date values instead of ISO strings:

const holidaysAsDates = getHolidaysByYear(2025, { valueAsDate: true });

Example output shape (valueAsDate: false, default):

[
  {
    date: "2025-01-01",
    celebrationDate: "2025-01-01",
    name: { es: "Año Nuevo", en: "New Year's Day" },
    nextMonday: false,
  },
  {
    date: "2025-01-06",
    celebrationDate: "2025-01-13",
    name: { es: "Reyes Magos", en: "Epiphany" },
    nextMonday: true,
  },
];

nextMonday indicates whether the holiday is effectively moved to Monday in that year. For years before 1984, moved holidays are not shifted.

If you need a specific month, filter by celebrationDate:

const januaryHolidays = getHolidaysByYear(2025).filter((holiday) => {
  return Number(holiday.celebrationDate.slice(5, 7)) === 1;
});

[!TIP] getHolidaysByYear uses an in-memory cache and is also used internally by the other helpers.

isHoliday

Returns true if a date is a Colombian holiday, otherwise false.

import { isHoliday } from "colombian-holidays/isHoliday";

const date = new Date("2018-01-01");

if (isHoliday(date)) {
  console.log("it is a colombian holiday");
} else {
  console.log("it is NOT a colombian holiday");
}

isHoliday checks the holiday celebration date (not always the original holiday date).

getHoliday

Returns the holiday object for a given date, or null when there is no match.

import { getHoliday } from "colombian-holidays/getHoliday";

const date = new Date("2018-01-01");
const holiday = getHoliday(date);

/*
  {
    celebrationDate: "2018-01-01",
    date: "2018-01-01",
    name: { en: "New Year's Day", es: "Año Nuevo" },
    nextMonday: false,
  }
*/

Returns null if the date is not a holiday.

Return native Date values:

const holidayAsDate = getHoliday(date, { valueAsDate: true });

holidaysWithinInterval

Returns holidays within an interval (inclusive bounds).

import { holidaysWithinInterval } from "colombian-holidays/holidaysWithinInterval";

const start = new Date("2021-01-01");
const end = new Date("2021-01-11");
const holidays = holidaysWithinInterval({ start, end });
// const holidays = holidaysWithinInterval({ start, end, valueAsDate: true });

Throws when start is equal to or greater than end:

holidaysWithinInterval({
  start: new Date("2022-01-01"),
  end: new Date("2022-01-01"),
});
// Error: end date should be greater than start date

Returns:

[
  {
    celebrationDate: "2021-01-01",
    date: "2021-01-01",
    name: { es: "Año Nuevo", en: "New Year's Day" },
    nextMonday: false,
  },
  {
    celebrationDate: "2021-01-11",
    date: "2021-01-06",
    name: { es: "Reyes Magos", en: "Epiphany" },
    nextMonday: true,
  },
];

Breaking change

As of this major version, the package no longer exports helpers from the root path. Use subpath imports instead.

Before:

import { getHolidaysByYear } from "colombian-holidays";

Now:

import { getHolidaysByYear } from "colombian-holidays/getHolidaysByYear";

The package is ESM-only.

ESM:

import { getHolidaysByYear } from "colombian-holidays/getHolidaysByYear";

CommonJS is not exported:

require("colombian-holidays/getHolidaysByYear");

Builds are generated with tsup and published as ESM.

TypeScript

The package is written in TypeScript and includes type definitions.

License