@studio384/date-holidays-devtest

date-holidays

world-wide holidays in gregorian calender

This module provides dates of holidays for various countries, states and regions by type while considering the applicable timezone.

The features are:

• calculation of public, bank and observance holidays for different countries, state, region, following ISO 3166-2
• consideration of timezones for holiday checks
• consideration of start and end time dependent on timezone
• substitute days
• multi-language support for all holiday names
• setting of custom holidays
• uses own grammar for calculation of days
• support for islamic calendar from 1970 to 2080 (islamic dates might not be correct as they are subject to the sighting of the moon)
• support for hebrew calendar from 1970 to 2100
• support for chinese calendar
• for generation of iCal calendar check out date-holidays-ical

Happy holidays!

Table of Contents

• Supported Countries, States, Regions
• Usage
• Holiday object
  • Dates
  • Name
  • Types of holidays
• API
• Data
• Custom builds of holidays.json
• Bundling with webpack
• Browser
• CDN
• Contribution and License Agreement
• License
• References

Supported Countries, States, Regions

If you are missing holidays from your country, state, region please consider contributing.

Countries: 5
├── BE: Belgique
│   ├── BRU: Bruxelles
│   ├── DE: Deutschsprachige Gemeinschaft
│   ├── VLG: Vlaamse Gemeenschap
│   └── WAL: Communauté française
├── DE: Deutschland
│   ├── BB: Brandenburg
│   ├── BE: Berlin
│   ├── BW: Baden-Württemberg
│   ├── BY: Bayern
│   │   ├── A: Stadt Augsburg
│   │   └── EVANG: Überwiegend evangelische Gemeinden
│   ├── HB: Hansestadt Bremen
│   ├── HE: Hessen
│   ├── HH: Hansestadt Hamburg
│   ├── MV: Mecklenburg Vorpommern
│   ├── NI: Niedersachsen
│   ├── NW: Nordrhein-Westfalen
│   ├── RP: Rheinland-Pfalz
│   ├── SH: Schleswig-Holstein
│   ├── SL: Saarland
│   ├── SN: Sachsen
│   │   └── BZ: Landkreis Bautzen
│   ├── ST: Sachsen-Anhalt
│   └── TH: Thüringen
│       ├── EIC: Landkreis Eichfeld
│       ├── UH: Unstrut-Hainich-Kreis
│       └── WAK: Wartburgkreis
├── FR: France
│   ├── 57: Département Moselle
│   ├── 67: Département Bas-Rhin
│   └── 68: Département Haut-Rhin
├── NL: Nederland
└── US: United States of America
    ├── AL: Alabama
    ├── AK: Alaska
    ├── AZ: Arizona
    ├── AR: Arkansas
    ├── CA: California
    │   └── LA: Los Angeles
    ├── CO: Colorado
    ├── CT: Connecticut
    ├── DE: Delaware
    ├── DC: District of Columbia
    ├── FL: Florida
    ├── GA: Georgia
    ├── HI: Hawaii
    ├── ID: Idaho
    ├── IL: Illinois
    ├── IN: Indiana
    ├── IA: Iowa
    ├── KS: Kansas
    ├── KY: Kentucky
    ├── LA: Louisiana
    │   └── NO: New Orleans
    ├── ME: Maine
    ├── MD: Maryland
    ├── MA: Massachusetts
    ├── MI: Michigan
    ├── MN: Minnesota
    ├── MS: Mississippi
    ├── MO: Missouri
    ├── MT: Montana
    ├── NE: Nebraska
    ├── NV: Nevada
    ├── NH: New Hampshire
    ├── NJ: New Jersey
    ├── NM: New Mexico
    ├── NY: New York
    ├── NC: North Carolina
    ├── ND: North Dakota
    ├── OH: Ohio
    ├── OK: Oklahoma
    ├── OR: Oregon
    ├── PA: Pennsylvania
    ├── RI: Rhode Island
    ├── SC: South Carolina
    ├── SD: South Dakota
    ├── TN: Tennessee
    ├── TX: Texas
    ├── UT: Utah
    ├── VT: Vermont
    ├── VA: Virginia
    ├── WA: Washington
    ├── WV: West Virginia
    ├── WI: Wisconsin
    └── WY: Wyoming

Usage

var Holidays = require('date-holidays')
var hd = new Holidays()

// get supported countries
hd.getCountries()
/*>
{ AD: 'Andorra',
  ...
  US: 'United States' }
*/

// get supported states e.g. for US
hd.getStates('US')
/*>
{ al: 'Alabama',
  ...
  wy: 'Wyoming' }
*/

// get supported regions e.g. for US, Lousiana
hd.getRegions('US', 'la')
/*>
{ no: 'New Orleans' }
*/

// initialize holidays for US, Lousiana, New Orleans
hd.init('US', 'la', 'no')
// or using a new instance
hd = new Holidays('US', 'la', 'no')

// get all holidays for the year 2016
hd.getHolidays(2016)
/*>
[ { date: '2016-01-01 00:00:00',
    start: Fri Jan 01 2016 00:00:00 GMT-0600 (CST),
    end: Sat Jan 02 2016 00:00:00 GMT-0600 (CST),
    name: 'New Year\'s Day',
    rule: '01-01 and if sunday then next monday if saturday then previous friday',
    type: 'public' },
  ...
  { date: '2016-11-24 00:00:00',
    start: Thu Nov 24 2016 00:00:00 GMT-0600 (CST),
    end: Fri Nov 25 2016 00:00:00 GMT-0600 (CST),
    name: 'Thanksgiving Day',
    rule: '4th thursday in November',
    type: 'public' },
  ...
  { date: '2016-12-26 00:00:00',
    start: Mon Dec 26 2016 00:00:00 GMT-0600 (CST),
    end: Tue Dec 27 2016 00:00:00 GMT-0600 (CST),
    substitute: true,
    name: 'Christmas Day (substitute day)',
    rule: '12-25 and if sunday then next monday if saturday then previous friday',
    type: 'public' } ]
*/

// check if date is a holiday while respecting timezones
hd.isHoliday(new Date('2016-02-09 00:00:00 GMT+0000'))
//> false
hd.isHoliday(new Date('2016-02-09 10:00:00 GMT-0600'))
/*>
[{ date: '2016-02-09 00:00:00',
  start: Tue Feb 09 2016 00:00:00 GMT-0600 (CST),
  end: Wed Feb 10 2016 00:00:00 GMT-0600 (CST),
  name: 'Mardi Gras',
  rule: 'easter -47',
  type: 'public' }
]
*/

Holiday object

getHolidays() as well as a matching isHoliday() call return either a list or a single holiday object which consists of:

• {String} date - ISO Date String of (start)-date in local format
• {Date} start - start date of holiday
• {Date} end - end date of holiday
• {String} name - name of holiday using language (if available)
• {String} type - type of holiday public|bank|school|optional|observance
• {Boolean} substitute - (optional) if true holiday substitutes another holiday`
• {String} note - (optional) note`

Dates

The date String represents the start date of the holiday in ISO format without timezone. This string it intended for information only.

start and end are the start/end date of the holiday within the selected timezone of the country, state, region.

Name

The name names the holiday in the local language of the selected country, state, region. The applied language(s) can be requested using getLanguages().

The language can be changed using the setLanguages() method. In case that not translation is available a fall-back to the next given language will be made. E.g. local language is "fr", setLanguages('nl') was called. For all holidays where no dutch translation is available the French version will be used instead.

All holiday names should support an English translation.

Types of holidays

Currently the following type with their meaning are supported

type	meaning
public	public holiday
bank	bank holiday, banks and offices are closed
school	school holiday, schools are closed
optional	majority of people take a day off
observance	optional festivity, no paid day off

Additionally a note field is sometimes available for further clarification.

API

See Holidays API for further information.

Data

All data for the holidays of the different countries is contained in ./data/holidays.json. For changing holiday data edit the appropriate country in ./data/countries. Any details on structure and available grammar for holiday attribution is described in holidays.yaml specification.

Custom builds of holidays.json

If only selected countries are required in data/holidays.json you can add the following script to your npm scripts section. E.g. for picking just US, Canada, Mexico do the following:

"scripts": {
  "build": "holidays2json --pick US,CA,MX --min"
},

The --min switch removes dependencies which are not required for the countries selected. You may not be able to use the full set of rules in case you want to add custom rules.

Alternatively you may use the --omit option.

Manually use

npx holidays2json --pick US,CA,MX

NOTE: There are some countries which depend on data of others which might render the file useless. e.g. "GU" requires "US", so try to pick or omit both.

Bundling with webpack

To minimize bundle sizes consider adding the following lines in your webpack config. Please take a look at ./webpack.config.js. To further reduce size consider custom builds by only selecting required countries.

...
  plugins: [
    new webpack.IgnorePlugin({
      checkResource (resource, context) {
        // ---- do not bundle astronomia vsop planet data
        if (/\/astronomia\/data$/.test(context)) {
          return !['./deltat.js', './vsop87Bearth.js'].includes(resource)
        }
        // ---- do not bundle moment locales
        if (/\/moment\/locale$/.test(context)) {
          return true
        }
        return false
      }
    })

Browser

This project also runs in all modern browsers. See ./examples/browser

Browser	Version	Notes
Chrome	>=45
Firefox	>=45
Safari	>=10
Edge	>=13
IE	>=11	needs polyfill core-js/es6

Please do not forget to set the correct charset!

<html>
<head>
  <!-- set page-wide -->
  <meta charset="UTF-8">
  ...
</head>
<body>
  ...
  <!-- or per script -->
  <script src="your-bundle.js" charset="UTF-8"></script>

CDN

Minified distribution bundles are available via https://unpkg.com

NOTE: dist-bundles are quite huge in size ~1.5MByte so use custom builds instead.

See https://unpkg.com/date-holidays/dist/

• index.min.js: commonjs2 bundle
• umd.min.js: umd bundle

Contribution and License Agreement

You like to contribute please read CONTRIBUTING.md.

If you contribute code to this project, you are implicitly allowing your code to be distributed under the ISC license. You are also implicitly verifying that all code is your original work or correctly attributed with the source of its origin and license.

License

Copyright (c) 2016- commenthol (ISC License)

The data contained in holidays.json and ./data/countries/*.yaml is available under CC BY-SA 3.0 as the majority of data obtained relies on wikipedia articles. The required attribution can be found inside the files ./data/countries/*.yaml.

See LICENSE for more information.

References

• CONTRIBUTING.md
• date-holidays-ical
• date-holidays-parser
• Holidays API
• holidays.yaml specification
• LICENSE

Changelog

3.16.1 (2022-06-12)

• fix(US.CA): Presidents' Day name 845793aa