API documentation

Annual data

Read out annual data for 1 location

using Geo-ID using City-ID using LatLon geocoordinates Switzerland / Liechtenstein: using postcode

Switzerland / Liechtenstein: using FSO community number

API: Data/LatLon

Get public holidays and school holidays for a whole year, based on `lat` and `lon` (geocoordinates).

Function

Enables queries via geo-coordinates. Displays public holidays and school holidays of the corresponding municipality/region. To improve the results in outlying areas, an ISO country code can also be sent and/or the search distance can be changed.

Attention: The localisation is done by distance measurement. In peripheral areas, the assignment may therefore produce incorrect results.

Interactive guide and OpenAPI

OpenAPI 3.0 (Swagger) – Interactive API documentation

Opens the interactive API documentation with Swagger, where you can test and explore API endpoints.

Download OpenAPI JSON specification

API Chapters

URL for requests
Request parameters
Examples (URL / PHP / Python / JavaScript)
Return values of the API
Examples (JSON / XML / CSV)
Error messages

URL for requests

To retrieve the data, use the following URL. Please pay attention to upper case lower case.

POST / GET

https://feiertagskalender.ch/api/Data/LatLon/index.php

Request parameters

With the following variables you can complete the query and control the API results.

Parameter	Explanation	Examples
api_key required	Your API Key	api_key=abc-123-def-456
lat required	Latitude. Geographical latitude	lat=46.9576
lon required	Longitude. Geographical longitude	lon=7.45134
iso	ISO country code, 2 digits Optional additional information for improved allocation.	iso=CH
dist	Maximum search distance in km without specification: 100km (= default)	dist=200
year or jahr	Year of the requested dates without specification: current calendar year (= default)	year= 2026
class or klasse	Scope of the data Variants: 0 = school holidays only 3 = 0 + public holidays recognised by law 4 = 0 + 3 + public and non-statutory holidays (religious, cultural) (= default) 5 = 0 + 3 + 4 + event days (e.g. Valentine's Day, Mother's Day, Advent Sundays)	klasse=5
charset	The desired coding of the response Variants: UTF-8 (= default) ISO-8859-1	charset=iso-8859-1
format	The desired output format Variants: JSON (= default) XML CSV	format=xml
date_format	The desired date format for the response. Default: `Y-m-d` (e.g., 2025-12-31) The format corresponds to the date formatting of the PHP instruction date() Variants: Y-m-d = YYYY-MM-DD (ISO-8601) (= default) d.m.Y = DD.MM.YYYY Ymd = YYYYMMDD dmY = DDMMYYYY d.m.y = DD.MM.YY j.n.y = D.M.YY	date_format=d.m.Y
hl	Desired language of the output Variants: de = German (= default) fr = French it = Italian en = English	hl=en

Examples (URL / PHP / Python / JavaScript)

Show examples

Parameters in the URL

Parameters can be included in the URL (e.g. via the browser or in Excel):
Note: The first parameter is introduced with ?, all other parameters are introduced with &.

Important: This code must not be used directly in a website! For security reasons, API keys must only be processed in the backend.

https://feiertagskalender.ch/api/Data/LatLon/index.php?api_key=YOUR_API_KEY&lat=46.9488&lon=7.4388&year=2022

Example PHP with cURL (GET)

$api_url = "https://feiertagskalender.ch/api/Data/LatLon/index.php?lat=46.9488&lon=7.4388&year=2022";
$api_key = "YOUR_API_KEY";

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $api_url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, [
   "Authorization: Bearer $api_key",
   "Content-Type: application/json"
]);
$response = curl_exec($ch);
curl_close($ch);

echo $response;

Example PHP with cURL (POST)

$api_url = "https://feiertagskalender.ch/api/Data/LatLon/index.php";
$api_key = "YOUR_API_KEY";

// POST-Daten
$post_data = json_encode([
    "lat": "46.9488", "lon": "7.4388", "year": "2022"	
]);

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $api_url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $post_data);
curl_setopt($ch, CURLOPT_HTTPHEADER, [
    "Authorization: Bearer $api_key",
    "Content-Type: application/json"
]);

$response = curl_exec($ch);
curl_close($ch);

echo $response;

Example Python with requests (GET)

import requests

api_key = "YOUR_API_KEY"
api_url = "https://feiertagskalender.ch/api/Data/LatLon/index.php?lat=46.9488&lon=7.4388&year=2022"
headers = {
    "Authorization": f"Bearer {api_key}",
    "Content-Type": "application/json"
}

response = requests.get(api_url, headers=headers)

if response.status_code == 200:
    print(response.json())  # JSON
else:
    print(f"Error: {response.status_code}", response.text)

Example Python with requests (POST)

import requests

api_key = "YOUR_API_KEY"
api_url = "https://feiertagskalender.ch/api/Data/LatLon/index.php"
headers = {
    "Authorization": f"Bearer {api_key}",
    "Content-Type": "application/json"
}

payload = {
    "lat": "46.9488", "lon": "7.4388", "year": "2022"	
}

response = requests.post(api_url, headers=headers, json=payload)

if response.status_code == 200:
    print(response.json())  # JSON
else:
    print(f"Error: {response.status_code}", response.text)

Example JavaScript with Fetch API (GET)

The Fetch API is a modern method for executing HTTP requests in JavaScript. It is supported in current browsers.

Important: This code must not be used directly in a website! For security reasons, API keys must only be processed in the backend.

const apiUrl = "https://feiertagskalender.ch/api/Data/LatLon/index.php?lat=46.9488&lon=7.4388&year=2022";
const apiKey = "YOUR_API_KEY";  								
const headers = new Headers({
    "Authorization": "Bearer " + apiKey,
    "Content-Type": "application/json"
});

fetch(apiUrl, { method: "GET", headers })
    .then(response => {
        if (!response.ok) {
            throw new Error(`Error: ${response.status} ${response.statusText}`);
        }
        return response.json();
    })
    .then(data => console.log(data))
    .catch(error => console.error("Error:", error));

Example JavaScript with Fetch API (POST)

The Fetch API is a modern method for executing HTTP requests in JavaScript. It is supported in current browsers.

const apiUrl = "https://feiertagskalender.ch/api/Data/LatLon/index.php";
const apiKey = "YOUR_API_KEY";  
const requestData = {
    "lat": "46.9488", "lon": "7.4388", "year": "2022"	
};

fetch(apiUrl, {
    method: "POST",
    headers: {
        "Authorization": "Bearer " + apiKey,
        "Content-Type": "application/json"
    },
    body: JSON.stringify(requestData)
})
.then(response => {
    if (!response.ok) {
        throw new Error(`Error: ${response.status} ${response.statusText}`);
    }
    return response.json();
})
.then(data => console.log(data))
.catch(error => console.error("Error:", error));

Return values of the API

The contents of the API responses result from:
- the data you have subscribed to (countries, public holidays, school holidays, calendar years)
- the officially known data of the legislators
- the availability based on our research (ACTUAL situation of our database)

Please note that the output in CSV format differs.

Array				Explanation	Example
interface				Version of the API
source:	href			URL to the data source (website)
	description			Name of the data source
copyright	href			URL to the copyright holder (website)
	description			Designation of the copyright holder
apiName				Identification of the API	Data/LatLon
apiStatus	description			Designation of the API status. For variants, see the Error messages	active
date				Date of the data export	19.10.2025
request:	lat			Latitude. Geographical latitude	46.9576
	lon			Longitude. Geographical longitude	7.45134
	iso			ISO country code, 2 digits	CH
	dist			Maximum search distance in km	100
	year			Year of the data in the output	2015
	class			Class of the query (concerns the scope of the data)	4
	charset			Font coding of the output	utf-8
	format			Output data format	json
	date_format			Output date format	d.m.Y
	hl			Language of issue, according to request	en
results	status	description		Output status. For variants, see the Error messages	ok
	location	description		Designation of the geographical unit	Bern
		type		Designation of the type of geographical unit	City
		geoId		Geo-ID of the geographical unit.	410
		iso		ISO country code, 2 digits	BE
		iso-3166-2		Region code according to ISO 3166-2
		note		Special notes
		events		The calendar events
			description	Designation of the public holiday, or school holidays	New Year´s Day
			id	Unique ID of the event. Public holidays have the same ID every year. School holidays all have their own IDs.	1
			dateStart	Date Start of the event	01.01.2015
			dateEnd	Date end of the event	01.01.2015
			class	Class of the event: 0 = School holidays 1 = official holiday 2 = Public holiday on a par with Sundays 3 = half-holiday (normally starting from noon) 4 = legally not recognized holiday (shops, schools, administrations mostly closed), bank holiday; for the purposes of the European Convention on the Calculation of Time Limits, this day is treated as a public holiday (Art. 5). 5 = event day # = partially valid	2
			percent	Size of affected residents / school classes in percent	100
			prov	Flag for provisionally set data 0 = definitely 1 = provisional	0
			note	special notes

Examples (JSON / XML / CSV)

JSON

URL:
https://www.feiertagskalender.ch/api/Data/LatLon/index.php?api_key=YOUR_API_KEY&lat=46.9488&lon=7.4388&year=2022

Response from the API:

{
    "interface": "fcal API 2.02",
    "source": {
        "href": "https://feiertagskalender.ch",
        "description": "feiertagskalender.ch"
    },
    "copyright": {
        "href": "https://psc.ch",
        "description": "psc Peter Schuetz Informatik-Dienstleistungen, CH Arch"
    },
    "apiName": "Data/LatLon",
    "apiStatus": {
        "description": "active"
    },
    "date": "2025-02-27",
    "request": {
        "lat": "46.9488",
        "lon": "7.4388",
        "iso": "",
        "dist": "100",
        "year": 2022,
        "class": "4",
        "charset": "utf-8",
        "format": "json",
        "date_format": "Y-m-d",
        "hl": "de"
    },
    "results": {
        "status": {
            "description": "ok"
        },
        "location": {
            "description": "Bern",
            "type": "Stadt",
            "geoId": "410",
            "iso": "CH",
            "iso-3166-2": "CH-BE",
            "note": "",
            "events": [
                {
                    "description": "Neujahr",
                    "id": "1",
                    "dateStart": "2022-01-01",
                    "dateEnd": "2022-01-01",
                    "class": "2",
                    "percent": "100",
                    "prov": "0",
                    "note": null
                },
                {
                    "description": "Berchtoldstag",
                    "id": "3",
                    "dateStart": "2022-01-02",
                    "dateEnd": "2022-01-02",
                    "class": "2",
                    "percent": "100",
                    "prov": "0",
                    "note": null
                },
                {
                    "description": "Karfreitag",
                    "id": "17",
                    "dateStart": "2022-04-15",
                    "dateEnd": "2022-04-15",
                    "class": "2",
                    "percent": "100",
                    "prov": "0",
                    "note": null
                },
                {
                    "description": "Ostern",
                    "id": "18",
                    "dateStart": "2022-04-17",
                    "dateEnd": "2022-04-17",
                    "class": "4",
                    "percent": "100",
                    "prov": "0",
                    "note": null
                },
                {
                    "description": "Ostermontag",
                    "id": "19",
                    "dateStart": "2022-04-18",
                    "dateEnd": "2022-04-18",
                    "class": "2",
                    "percent": "100",
                    "prov": "0",
                    "note": null
                },
                {
                    "description": "Auffahrt",
                    "id": "31",
                    "dateStart": "2022-05-26",
                    "dateEnd": "2022-05-26",
                    "class": "2",
                    "percent": "100",
                    "prov": "0",
                    "note": null
                },
                {
                    "description": "Pfingsten",
                    "id": "30",
                    "dateStart": "2022-06-05",
                    "dateEnd": "2022-06-05",
                    "class": "4",
                    "percent": "100",
                    "prov": "0",
                    "note": null
                },
                {
                    "description": "Pfingstmontag",
                    "id": "35",
                    "dateStart": "2022-06-06",
                    "dateEnd": "2022-06-06",
                    "class": "2",
                    "percent": "100",
                    "prov": "0",
                    "note": null
                },
                {
                    "description": "Nationalfeiertag Schweiz",
                    "id": "12",
                    "dateStart": "2022-08-01",
                    "dateEnd": "2022-08-01",
                    "class": "2",
                    "percent": "100",
                    "prov": "0",
                    "note": null
                },
                {
                    "description": "Weihnachten",
                    "id": "23",
                    "dateStart": "2022-12-25",
                    "dateEnd": "2022-12-25",
                    "class": "2",
                    "percent": "100",
                    "prov": "0",
                    "note": null
                },
                {
                    "description": "Stephanstag",
                    "id": "37",
                    "dateStart": "2022-12-26",
                    "dateEnd": "2022-12-26",
                    "class": "2",
                    "percent": "100",
                    "prov": "0",
                    "note": null
                },
                {
                    "name": "Weihnachtsferien",
                    "description": "Weihnachtsferien",
                    "id": "530660",
                    "dateStart": "2021-12-25",
                    "dateEnd": "2022-01-09",
                    "class": "0",
                    "percent": "100",
                    "prov": "0",
                    "note": null
                },
                {
                    "name": "Sportferien",
                    "description": "Sportferien",
                    "id": "531963",
                    "dateStart": "2022-02-05",
                    "dateEnd": "2022-02-13",
                    "class": "0",
                    "percent": "100",
                    "prov": "0",
                    "note": "DIN Woche 6"
                },
                {
                    "name": "Frühlingsferien",
                    "description": "Frühlingsferien",
                    "id": "530661",
                    "dateStart": "2022-04-09",
                    "dateEnd": "2022-04-24",
                    "class": "0",
                    "percent": "100",
                    "prov": "0",
                    "note": null
                },
                {
                    "name": "Auffahrtsferien",
                    "description": "Auffahrtsferien",
                    "id": "732799",
                    "dateStart": "2022-05-26",
                    "dateEnd": "2022-05-29",
                    "class": "0",
                    "percent": "100",
                    "prov": "0",
                    "note": null
                },
                {
                    "name": "Pfingstmontag",
                    "description": "Pfingstmontag",
                    "id": "732800",
                    "dateStart": "2022-06-06",
                    "dateEnd": "2022-06-06",
                    "class": "0",
                    "percent": "100",
                    "prov": "0",
                    "note": null
                },
                {
                    "name": "Sommerferien",
                    "description": "Sommerferien",
                    "id": "530662",
                    "dateStart": "2022-07-09",
                    "dateEnd": "2022-08-14",
                    "class": "0",
                    "percent": "100",
                    "prov": "0",
                    "note": null
                },
                {
                    "name": "Herbstferien",
                    "description": "Herbstferien",
                    "id": "530663",
                    "dateStart": "2022-09-24",
                    "dateEnd": "2022-10-16",
                    "class": "0",
                    "percent": "100",
                    "prov": "0",
                    "note": null
                },
                {
                    "name": "Weihnachtsferien",
                    "description": "Weihnachtsferien",
                    "id": "530664",
                    "dateStart": "2022-12-24",
                    "dateEnd": "2023-01-08",
                    "class": "0",
                    "percent": "100",
                    "prov": "0",
                    "note": null
                }
            ]
        }
    }
}

XML

URL:
https://www.feiertagskalender.ch/api/Data/LatLon/index.php?api_key=YOUR_API_KEY&lat=46.9488&lon=7.4388&year=2022&format=xml

Response from the API:

<fcal_api>
<interface>fcal API 2.02</interface>
<source>
<href>https://feiertagskalender.ch</href>
<description>feiertagskalender.ch</description>
</source>
<copyright>
<href>https://psc.ch</href>
<description>psc Peter Schuetz Informatik-Dienstleistungen, CH Bern</description>
</copyright>
<apiStatus>
<description>active</description>
</apiStatus>
<apiName>Data/LatLon</apiName>
<date>2025-02-27</date>
<request>
<lat>46.9488</lat>
<lon>7.4388</lon>
<iso></iso>
<dist>100</dist>
<year>2022</year>
<class>4</class>
<charset>utf-8</charset>
<format>xml</format>
<date_format>Y-m-d</date_format>
<hl>de</hl>
</request>
<results>
<status>
<description>ok</description>
</status>
<location>
<description>Bern</description>
<type>Stadt</type>
<geoId>410</geoId>
<iso>CH</iso>
<iso-3166-2>CH-BE</iso-3166-2>
<note></note>
<events>
<event>
<description>Neujahr</description>
<id>1</id>
<dateStart>2022-01-01</dateStart>
<dateEnd>2022-01-01</dateEnd>
<class>2</class>
<percent>100</percent>
<prov>0</prov>
<note></note>
</event>
<event>
<description>Berchtoldstag</description>
<id>3</id>
<dateStart>2022-01-02</dateStart>
<dateEnd>2022-01-02</dateEnd>
<class>2</class>
<percent>100</percent>
<prov>0</prov>
<note></note>
</event>
<event>
<description>Karfreitag</description>
<id>17</id>
<dateStart>2022-04-15</dateStart>
<dateEnd>2022-04-15</dateEnd>
<class>2</class>
<percent>100</percent>
<prov>0</prov>
<note></note>
</event>
<event>
<description>Ostern</description>
<id>18</id>
<dateStart>2022-04-17</dateStart>
<dateEnd>2022-04-17</dateEnd>
<class>4</class>
<percent>100</percent>
<prov>0</prov>
<note></note>
</event>
<event>
<description>Ostermontag</description>
<id>19</id>
<dateStart>2022-04-18</dateStart>
<dateEnd>2022-04-18</dateEnd>
<class>2</class>
<percent>100</percent>
<prov>0</prov>
<note></note>
</event>
<event>
<description>Auffahrt</description>
<id>31</id>
<dateStart>2022-05-26</dateStart>
<dateEnd>2022-05-26</dateEnd>
<class>2</class>
<percent>100</percent>
<prov>0</prov>
<note></note>
</event>
<event>
<description>Pfingsten</description>
<id>30</id>
<dateStart>2022-06-05</dateStart>
<dateEnd>2022-06-05</dateEnd>
<class>4</class>
<percent>100</percent>
<prov>0</prov>
<note></note>
</event>
<event>
<description>Pfingstmontag</description>
<id>35</id>
<dateStart>2022-06-06</dateStart>
<dateEnd>2022-06-06</dateEnd>
<class>2</class>
<percent>100</percent>
<prov>0</prov>
<note></note>
</event>
<event>
<description>Nationalfeiertag Schweiz</description>
<id>12</id>
<dateStart>2022-08-01</dateStart>
<dateEnd>2022-08-01</dateEnd>
<class>2</class>
<percent>100</percent>
<prov>0</prov>
<note></note>
</event>
<event>
<description>Weihnachten</description>
<id>23</id>
<dateStart>2022-12-25</dateStart>
<dateEnd>2022-12-25</dateEnd>
<class>2</class>
<percent>100</percent>
<prov>0</prov>
<note></note>
</event>
<event>
<description>Stephanstag</description>
<id>37</id>
<dateStart>2022-12-26</dateStart>
<dateEnd>2022-12-26</dateEnd>
<class>2</class>
<percent>100</percent>
<prov>0</prov>
<note></note>
</event>
<event>
<description>Weihnachtsferien</description>
<id>530660</id>
<dateStart>2021-12-25</dateStart>
<dateEnd>2022-01-09</dateEnd>
<class>0</class>
<percent>100</percent>
<prov>0</prov>
<note></note>
</event>
<event>
<description>Sportferien</description>
<id>531963</id>
<dateStart>2022-02-05</dateStart>
<dateEnd>2022-02-13</dateEnd>
<class>0</class>
<percent>100</percent>
<prov>0</prov>
<note>DIN Woche 6</note>
</event>
<event>
<description>Frühlingsferien</description>
<id>530661</id>
<dateStart>2022-04-09</dateStart>
<dateEnd>2022-04-24</dateEnd>
<class>0</class>
<percent>100</percent>
<prov>0</prov>
<note></note>
</event>
<event>
<description>Auffahrtsferien</description>
<id>732799</id>
<dateStart>2022-05-26</dateStart>
<dateEnd>2022-05-29</dateEnd>
<class>0</class>
<percent>100</percent>
<prov>0</prov>
<note></note>
</event>
<event>
<description>Pfingstmontag</description>
<id>732800</id>
<dateStart>2022-06-06</dateStart>
<dateEnd>2022-06-06</dateEnd>
<class>0</class>
<percent>100</percent>
<prov>0</prov>
<note></note>
</event>
<event>
<description>Sommerferien</description>
<id>530662</id>
<dateStart>2022-07-09</dateStart>
<dateEnd>2022-08-14</dateEnd>
<class>0</class>
<percent>100</percent>
<prov>0</prov>
<note></note>
</event>
<event>
<description>Herbstferien</description>
<id>530663</id>
<dateStart>2022-09-24</dateStart>
<dateEnd>2022-10-16</dateEnd>
<class>0</class>
<percent>100</percent>
<prov>0</prov>
<note></note>
</event>
<event>
<description>Weihnachtsferien</description>
<id>530664</id>
<dateStart>2022-12-24</dateStart>
<dateEnd>2023-01-08</dateEnd>
<class>0</class>
<percent>100</percent>
<prov>0</prov>
<note></note>
</event>
</events>
</location>
</results>
</fcal_api>

CSV

URL:
https://www.feiertagskalender.ch/api/Data/LatLon/index.php?api_key=YOUR_API_KEY&lat=46.9488&lon=7.4388&year=2022&format=csv

Response from the API:

"location";"geoId";"description";"id";"dateStart";"dateEnd";"class";"percent";"prov";"note"
"Bern";"410";"Neujahr";"1";"2022-01-01";"2022-01-01";"2";"100";"0";""
"Bern";"410";"Berchtoldstag";"3";"2022-01-02";"2022-01-02";"2";"100";"0";""
"Bern";"410";"Karfreitag";"17";"2022-04-15";"2022-04-15";"2";"100";"0";""
"Bern";"410";"Ostern";"18";"2022-04-17";"2022-04-17";"4";"100";"0";""
"Bern";"410";"Ostermontag";"19";"2022-04-18";"2022-04-18";"2";"100";"0";""
"Bern";"410";"Auffahrt";"31";"2022-05-26";"2022-05-26";"2";"100";"0";""
"Bern";"410";"Pfingsten";"30";"2022-06-05";"2022-06-05";"4";"100";"0";""
"Bern";"410";"Pfingstmontag";"35";"2022-06-06";"2022-06-06";"2";"100";"0";""
"Bern";"410";"Nationalfeiertag Schweiz";"12";"2022-08-01";"2022-08-01";"2";"100";"0";""
"Bern";"410";"Weihnachten";"23";"2022-12-25";"2022-12-25";"2";"100";"0";""
"Bern";"410";"Stephanstag";"37";"2022-12-26";"2022-12-26";"2";"100";"0";""
"Bern";"410";"Weihnachtsferien";"530660";"2021-12-25";"2022-01-09";"0";"100";"0";""
"Bern";"410";"Sportferien";"531963";"2022-02-05";"2022-02-13";"0";"100";"0";"DIN Woche 6"
"Bern";"410";"Frühlingsferien";"530661";"2022-04-09";"2022-04-24";"0";"100";"0";""
"Bern";"410";"Auffahrtsferien";"732799";"2022-05-26";"2022-05-29";"0";"100";"0";""
"Bern";"410";"Pfingstmontag";"732800";"2022-06-06";"2022-06-06";"0";"100";"0";""
"Bern";"410";"Sommerferien";"530662";"2022-07-09";"2022-08-14";"0";"100";"0";""
"Bern";"410";"Herbstferien";"530663";"2022-09-24";"2022-10-16";"0";"100";"0";""
"Bern";"410";"Weihnachtsferien";"530664";"2022-12-24";"2023-01-08";"0";"100";"0";""

Error messages

Output location	Error message	Explanation
results: status:
results: status: description	not subscribed	You have not subscribed to the desired data.
results: status: description	unknown location	The requested coordinates could not be assigned. The coordinates are outside the recorded area, or are invalid. Please check the parameters lat and lon.
apiStatus
apiStatus: description	invalid usage	The use of this API is not enabled for this user.
apiStatus: description	invalid key	Invalid API key.
apiStatus: description	invalid referer	Invalid access. Links from web pages (front-ends) are not allowed.
apiStatus: description	inactive	The API has not yet been activated for use.
apiStatus: description	expired	The period of use according to the contract has expired.

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API: Data/LatLon

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