What is the name of the New Year's Eve tradition in which people in Denmark jump from chairs at midnight?

The Danish New Year's Eve tradition of jumping from chairs at midnight is called “jumping into the New Year.”

In Denmark, some celebrants stand on chairs, sofas, or other raised surfaces and jump down as the clock strikes twelve. The action is a symbolic leap from the old year into the new one. It is especially recognizable as a playful Danish custom shared in descriptions of New Year's traditions around the world.

Danish New Year's celebrations also include a midnight toast, fireworks, and the broadcast of the monarch's New Year's speech, traditionally delivered on December 31. Another well-known custom is throwing or leaving broken plates outside friends' homes, although practices vary and the plate tradition is often discussed separately from the midnight jump.

The phrase is descriptive rather than the name of a formal organization or festival. It should not be confused with Scotland's first-footing, Spain's twelve grapes, or the New Year's Eve ball drop in New York. Those customs use different symbols for luck, renewal, or communal celebration.