The whole country celebrates! The Argentine government is talking about celebrating the World Cup, and local time may have a holiday on Tuesday.

December 19, according to South American portal infobae, after Argentina won the World Cup, President Alberto Fernandez is discussing how to celebrate the event.
The Argentine government may announce a holiday on Tuesday, local time, for Argentine people to celebrate with the returning team.
The media analyzed the possibility of a holiday on Monday, but as Argentina is expected to return to the country on Monday night local time, an administrative holiday may not be announced until Tuesday.
In addition, Argentina’s sports and tourism department is working hard to arrange Argentina’s itinerary for meetings with the president, parades and celebrations.