countries-and-timezones

Minimalistic library to work with countries and timezones data. Updated with the IANA timezones database.

Usage

NodeJS

Install with npm or yarn:

npm install --save countries-and-timezones

Browser

Add the following script to your project (only ~9kb):

<!-- Latest version -->
<script src="https://cdn.jsdelivr.net/gh/manuelmhtr/countries-and-timezones@latest/dist/index.min.js" type="text/javascript"></script>

<!-- Or specify a version -->
<script src="https://cdn.jsdelivr.net/gh/manuelmhtr/[email protected]/dist/index.min.js" type="text/javascript"></script>

<!-- This will export a variable named "ct": -->
<script type="text/javascript">
  var data = ct.getCountry('MX');
  console.log(data);
</script>

API

`.getCountry(id, options = {})`

Returns a country referenced by its id.

Accepts a parameter with options.

Example

const ct = require('countries-and-timezones');

const country = ct.getCountry('DE');
console.log(country);

/*
Prints:

{
  id: 'DE',
  name: 'Germany',
  timezones: [ 'Europe/Berlin', 'Europe/Zurich' ]
}

*/

`.getTimezone(name)`

Returns a timezone referenced by its name.

Example

const ct = require('countries-and-timezones');

const timezone = ct.getTimezone('America/Los_Angeles');
console.log(timezone);

/*
Prints:

{
  name: 'America/Los_Angeles',
  countries: [ 'US' ],
  utcOffset: -480,
  utcOffsetStr: '-08:00',
  dstOffset: -420,
  dstOffsetStr: '-07:00',
  aliasOf: null
}

*/

`.getAllCountries(options = {})`

Returns an object with the data of all countries.

Accepts a parameter with options.

Example

const ct = require('countries-and-timezones');

const countries = ct.getAllCountries();
console.log(countries);

/*
Prints:

{
  AD: {
    id: 'AD',
    name: 'Andorra',
    timezones: [ 'Europe/Andorra' ]
  },
  AE: {
    id: 'AE',
    name: 'United Arab Emirates',
    timezones: [ 'Asia/Dubai' ]
  },
  AF: {
    id: 'AF',
    name: 'Afghanistan',
    timezones: [ 'Asia/Kabul' ]
  },
  AG: {
    id: 'AG',
    name: 'Antigua and Barbuda',
    timezones: [ 'America/Puerto_Rico' ]
  },
  ...
}

*/

`.getAllTimezones(options = {})`

Returns an object with the data of all timezones.

Accepts a parameter with options.

Example

const ct = require('countries-and-timezones');

const timezones = ct.getAllTimezones();
console.log(timezones);

/*
Prints:

{
  "Africa/Abidjan": {
    "name": "Africa/Abidjan",
    "countries": [
      "CI", "BF", "GH",
      "GM", "GN", "ML",
      "MR", "SH", "SL",
      "SN", "TG"
    ],
    "utcOffset": 0,
    "utcOffsetStr": "+00:00",
    "dstOffset": 0,
    "dstOffsetStr": "+00:00",
    "aliasOf": null
  },
  "Africa/Algiers": {
    "name": "Africa/Algiers",
    "countries": [
      "DZ"
    ],
    "utcOffset": 60,
    "utcOffsetStr": "+01:00",
    "dstOffset": 60,
    "dstOffsetStr": "+01:00",
    "aliasOf": null
  },
  "Africa/Bissau": {
    "name": "Africa/Bissau",
    "countries": [
      "GW"
    ],
    "utcOffset": 0,
    "utcOffsetStr": "+00:00",
    "dstOffset": 0,
    "dstOffsetStr": "+00:00",
    "aliasOf": null
  },
  ...
}

*/

`.getTimezonesForCountry(id, options = {})`

Returns an array with all the timezones of a country given its id.

Accepts a parameter with options.

Example

const ct = require('countries-and-timezones');

const timezones = ct.getTimezonesForCountry('MX');
console.log(timezones);

/*
Prints:

[
  {
    "name": "America/Bahia_Banderas",
    "countries": [ "MX" ],
    "utcOffset": -360,
    "utcOffsetStr": "-06:00",
    "dstOffset": -300,
    "dstOffsetStr": "-05:00",
    "aliasOf": null
  },
  {
    "name": "America/Cancun",
    "countries": [ "MX" ],
    "utcOffset": -300,
    "utcOffsetStr": "-05:00",
    "dstOffset": -300,
    "dstOffsetStr": "-05:00",
    "aliasOf": null
  },
  {
    "name": "America/Chihuahua",
    "countries": [ "MX" ],
    "utcOffset": -420,
    "utcOffsetStr": "-07:00",
    "dstOffset": -360,
    "dstOffsetStr": "-06:00",
    "aliasOf": null
  },
  ...
}

*/

`.getCountriesForTimezone(name, options = {})`

Returns a list of the countries that uses a timezone given its name. When a timezone has multiple countries the first element is more relevant due to its geographical location.

Accepts a parameter with options.

Example

const ct = require('countries-and-timezones');

const timezone = ct.getCountriesForTimezone('Europe/Zurich');
console.log(timezone);

/*
Prints:

[
  {
    "id": "CH",
    "name": "Switzerland",
    "timezones": [
      "Europe/Zurich"
    ]
  },
  {
    "id": "DE",
    "name": "Germany",
    "timezones": [
      "Europe/Berlin",
      "Europe/Zurich"
    ]
  },
  {
    "id": "LI",
    "name": "Liechtenstein",
    "timezones": [
      "Europe/Zurich"
    ]
  }
]

*/

`.getCountryForTimezone(name, options = {})`

Returns a the most relevant country (due to its geographical location) that uses a timezone given its name.

Accepts a parameter with options.

Example

const ct = require('countries-and-timezones');

const timezone = ct.getCountryForTimezone('Europe/Zurich');
console.log(timezone);

/*
Prints:

{
  "id": "CH",
  "name": "Switzerland",
  "timezones": [
    "Europe/Zurich"
  ]
}

*/

`options`

Available options for functions are:

Parameter	Type	Description
`deprecated`	Boolean	Indicates if the result should include deprecated timezones or not. By default no deprecated timezones are included.

Data models

Country

A country is defined by the following parameters:

Parameter	Type	Description
`id`	String	The country ISO 3166-1 code.
`name`	String	Preferred name of the country.
`timezones`	Array[String]	The list of timezones used in the country.

{
  id: 'MX',
  name: 'Mexico',
  timezones: [
    'America/Bahia_Banderas',
    'America/Cancun',
    'America/Chihuahua',
    'America/Hermosillo',
    'America/Matamoros',
    'America/Mazatlan',
    'America/Merida',
    'America/Mexico_City',
    'America/Monterrey',
    'America/Ojinaga',
    'America/Tijuana'
  ]
}

Timezone

A timezone is defined by the following parameters:

Parameter	Type	Description
`name`	String	The name of the timezone, from tz database.
`countries`	[String]	A list of ISO 3166-1 codes of the countries where it's used. `Etc/*`, `GMT` and `UTC` timezones don't have associated countries.
`utcOffset`	Number	The difference in minutes between the timezone and UTC.
`utcOffsetStr`	String	The difference in hours and minutes between the timezone and UTC, expressed as string with format: `±[hh]:[mm]`.
`dstOffset`	Number	The difference in minutes between the timezone and UTC during daylight saving time (DST). When `utcOffset` and `dstOffset` are the same, means that the timezone does not observe a daylight saving time.
`dstOffsetStr`	String	The difference in hours and minutes between the timezone and UTC during daylight saving time (DST, expressed as string with format: `±[hh]:[mm]`.
`aliasOf`	String	The `name` of a primary timezone in case this is an alias. `null` means this is a primary timezone.
`deprecated`	Boolean	`true` when the timezone has been deprecated, otherwise this property is not returned.

{
  name: 'Asia/Tel_Aviv',
  countries: [ 'IL' ],
  utcOffset: 120,
  utcOffsetStr: '+02:00',
  dstOffset: 180,
  dstOffsetStr: '+03:00',
  aliasOf: 'Asia/Jerusalem',
  deprecated: true
}

Related projects

countries-db: Minimalistic lib with countries data.
location-by-ip: Get the location of any IP address.

Support

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License

MIT

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