An image of the Arctic early in the morning when the sun rises, accompanied by the caption ‘We wish everyone a Happy New Year 2026’.

A last post for this year.

New Pope Leo XIV creates two new public holidays in the Vatican Two days related to Francis are cancelled in return

With the election of Leo XIV as the new pope, 8 May (the day of his election) and 17 September (the name day of Saint Robert Bellarmine, whom the pope chose as his patron saint) were declared new holidays in the Vatican. #openholidaysapi has been updated. english.katholisch.de/artikel/6254....

Bulgaria extends New Year public holidays because of transition to euro Bulgaria’s Cabinet agreed on November 19 that December 31 2025 and January 2 2026 will be public holidays, as a one-off event, Finance Minister Temenuzhka Petkova said. This is necessary in c…

Bulgaria’s Cabinet agreed on November 19 that December 31 2025 and January 2 2026 will be public holidays, as a one-off event. The reason for this is the changeover to the euro. #openholidaysapi has been updated accordingly. sofiaglobe.com/2025/11/19/b...

Banner - New Version of OpenPLZ API

New data for #openplzapi published: www.openplzapi.org/en/change-lo...

Brazilian flag and text "New country Brazil"

We have stepped into South America: Added #publicholidays for #brazil to the #openholidaysapi. www.openholidaysapi.org/en/

Mexican flag and text "New country Mexico"

We have stepped into North America: Added #publicholidays and #schoolholidays for #mexico to the #openholidaysapi. www.openholidaysapi.org/en/

Banner - New Version of OpenPLZ API

New data for #openplzapi published: www.openplzapi.org/en/change-lo...

Banner - OpenT8: Standardised representation of complex timetables with JSON

With #opent8, we have published a standardised #json format for representing complex timetable data. We actually released OpenT8 last year, but now a new, extensively revised version has been published. As always, feedback is welcome.

openpotato.github.io/opent8 (currently only in German, sorry)

Belgian flag waving in the wind

Added new #schoolholidays for #belgium to the #openholidaysapi. www.openholidaysapi.org/en/

Austrian flag waving in the wind

Added #schoolholidays 2025/2026 for #austria to the #openholidaysapi. www.openholidaysapi.org/en/

Swedish flag waving in the wind

Added #publicholidays for #sweden to the #openholidaysapi. www.openholidaysapi.org/en/

OpenPLZ API Swagger Screenshot

Neues #opendata Tool von @openpotato.org: OpenPLZ API - ein öffentliches Straßen- und Postleitzahlverzeichnis (inklusive Gemeindedaten) für DE, LI, die CH und Österreich über eine offene REST-API-Schnittstelle verfügbar macht - verwendet offene Daten der @statistik.at www.data.gv.at/katalog/appl...

Banner: OpenCodeList - Generic representation of code lists with JSON

With #opencodelist, we have published a generic data format that allows code lists to be modelled in #json. It's all open source and comes with a parser for .NET and Delphi. As always, feedback is welcome. openpotato.github.io/opencodelist...

Christmas Eve officially a day off in Poland from 2025! Polish President Andrzej Duda signed the so-called "Work-free Christmas Eve act" on Friday evening - the President's Chancellery informed.

From 2025, #poland will have an additional #publicholiday on Christmas Eve (Wigilia Bożego Narodzenia). #openholidaysapi has been updated accordingly.
www.polskieradio.pl/395/7784/art...

Einmaliger Feiertag am 8. Mai 2025 Anlässlich des 80. Jahrestags der Befreiung vom Nationalsozialismus und des Endes des Zweiten Weltkriegs wird der 8. Mai 2025 in Berlin zum gesetzlichen Feiertag.

One-off #publicholiday for #berlin (Germany) on 8 May 2025 (80th anniversary of the liberation from National Socialism and the end of the Second World War) added to #openholidaysapi.
www.berlin.de/aktuelles/91...

A refactored version of OpenHolidays API is in the works · openpotato openholidaysapi.website · Discussion #39 I'm currently in the process of refactoring some parts of this API based on the experience and feedback I've received over the last years: About the raw data in the repo https://github.com/openpota...

A refactored version of OpenHolidays API is in the works:
github.com/openpotato/o...

Banner - New version of OpenPLZ API

𝗢𝗽𝗲𝗻𝗣𝗟𝗭 𝗔𝗣𝗜 𝗩𝗲𝗿𝘀𝗶𝗼𝗻 𝟭.𝟬 𝗶𝘀 𝗼𝘂𝘁!

It's an open data project that makes a public street and postal code directory for Germany, Austria, Switzerland and Liechtenstein freely available via an open REST API interface.
www.openplzapi.org/en/

OpenPotato is the home of several open data projects. Here you will also find open source tools for data exchange and data generation. We just moved over from X/Twitter :-)
www.openpotato.org/en/