📆 Nager.Date - Official Website

Nager.Date is a popular project to query holidays. We currently support over 100 countries. The project is based on .NET but provides a REST interface to retrieve the data. There are several ways to use Nager.Date, there is a public api, you can start your own docker container or you can use the nuget package.

Nager.Date is open source software and is completely free for commercial use. If you would like to support the project you can award a GitHub star ⭐ or even better actively support us

📣 Announcement

Starting May 1, 2022, the Docker container and the NuGet package will require a Licence Key provided to the sponsors of this project. The public WebApi will remain freely accessible.

Country Support

The list of supported countries can be found here.

How can I use it?

If you are use .NET you can install the package via nuget, for all other languages we have a public web api available. If you have restrictive regulations in your company or you need high availability then you can also use the Docker Container.

nuget

The package is available via NuGet

PM> install-package Nager.Date

web api

• public use the public api date.nager.at
  • If you need the Api for a large number of requests, we also provide a Docker container.
• self-hosted (docker) use your own api, the docker container is available on Docker Hub
  • To run a local instance of the docker image run the following command
    docker run -p 80:80 nager/nager-date
    • -p 80:80 publish the port 80 from the docker to your host.

Generate a client for the web api

You can use swagger-codegen-cli to create a client for the api

docker run --rm -v C:\Temp:/local swaggerapi/swagger-codegen-cli-v3 generate -i https://date.nager.at/swagger/v1.0/swagger.json -l csharp-dotnet2 -o /local/out

Sponsor us

Your sponsorship helps us spend more time working on OpenSource related to Nager.Date, become a sponsor now. We started in 2014 and look forward to many more years...

Examples for .NET (nuget package)

Get all publicHolidays of a country and year

var publicHolidays = DateSystem.GetPublicHolidays(2021, "DE");
foreach (var publicHoliday in publicHolidays)
{
    //publicHoliday...
    //publicHoliday.Date -> The date
    //publicHoliday.LocalName -> The local name
    //publicHoliday.Name -> The english name
    //publicHoliday.Fixed -> Is this public holiday every year on the same date
    //publicHoliday.Global -> Is this public holiday in every county (federal state)
    //publicHoliday.Counties -> Is the public holiday only valid for a special county ISO-3166-2 - Federal states
    //publicHoliday.Type -> Public, Bank, School, Authorities, Optional, Observance
}

Get all publicHolidays for a date range

var startDate = new DateTime(2016, 5, 1);
var endDate = new DateTime(2021, 5, 31);
var publicHolidays = DateSystem.GetPublicHolidays(startDate, endDate, CountryCode.DE);
foreach (var publicHoliday in publicHolidays)
{
	//publicHoliday...
}

Check if a date is a public holiday

var date = new DateTime(2021, 1, 1);
if (DateSystem.IsPublicHoliday(date, CountryCode.DE))
{
    Console.WriteLine("Is public holiday");
}

Check if a date is a weekend day

var date = new DateTime(2021, 1, 1);
if (DateSystem.IsWeekend(date, CountryCode.DE))
{
    Console.WriteLine("Is weekend");
}

Areas of Application

• telephone systems
• carrier (land transport)
• time recording

Blog Posts

Mark Seemann - Simple holidays

Alternative projects

Language	Project	Supported Countries (January 2019)
PHP	yasumi	34
JavaScript	date-holidays	142
Java	jollyday	64
.NET	Holiday	21
Python	python-holidays	34
Python	workalendar	59