holidata 2026.1.2

Holidata is a utility for algorithmically producing holidays for a given locale and year

Holidata

holidata is a utility for algorithmically producing holiday data.

It is used e.g. by Taskwarrior and Timewarrior, as well as for holidata.net.

Holiday data can be produced for a given year in a supported locale and output format.

Usage

holidata --year=<value> --locale=<value> [--output=<value>]
holidata --year=<value> --country=<value> [--lang=<value>] [--output=<value>]

Call holidata with the --help option to more detailed information.

Examples

• Create holiday data of year 2022 for locale de-DE:

  $ holidata --year=2022 --locale=de-DE
  

• Create holiday data of year 2022 for country BE and language fr:

  $ holidata --year=2022 --country=BE --lang=fr
  

• Create holiday data of year 2022 for country US (default language en):

  $ holidata --year=2022 --country=US
  

Data

For each holiday the following data is provided:

• locale - language and country the holiday is defined for
• region - region code of the given subdivision the holiday is defined for
• date - actual date the holiday takes place
• description - name of the holiday in the given language
• type - holiday type flags
• notes - additional information

Locales

Holidata provides holiday data in different locales, i.e. for a given country and in a given language. See holidata.net for a complete overview of the currently provided locales.

If you think a locale is missing, open a feature request on GitHub.

Output Formats

Holidata supports different output formats, currently csv, jsonline, yaml, and xml.

Limitations

Holidata focuses on holidays which are defined by law on which business or work are suspended or reduced (there may be some exceptions to that rule).

Holidata only provides data for countries and their principal subdivisions (both as they are defined in ISO 3166). Holidays for other subdivisions are either merged or ignored. There is also no explicit representation of partial holidays.

Contributing

Take a look at CONTRIBUTING.md on how you can contribute. ❤️

License

holidata is released under the MIT license. For details check the LICENSE file.