In France, New Year's Eve is commonly called Saint-Sylvestre.
The name refers to Saint Sylvester's feast day, which falls on December 31 in the Western Christian calendar. French speakers may also simply say le réveillon de la Saint-Sylvestre for the festive evening meal and celebration marking the end of the year.
A réveillon is a long, celebratory meal traditionally associated with major holidays. On New Year's Eve, menus vary widely but may include champagne, seafood, foie gras, pastries, and other festive dishes. Customs differ by household and region.
Paris has often been especially prominent in popular images of French New Year's celebrations, although large public gatherings and fireworks policies can change from year to year. The name Saint-Sylvestre is the stable cultural term, regardless of the specific program in a given city.