The New Year's Eve tradition of jumping from chairs at midnight is associated with Denmark.
At the stroke of midnight, some Danish celebrants stand on a chair, sofa, or other raised surface and jump down. The action is commonly described as jumping into the New Year, with the leap intended to bring luck and mark the transition from one year to the next.
The custom is often practiced alongside other Danish New Year's traditions, including eating a kransekage cake, watching the monarch's televised speech, and hearing the midnight bells. It is a folk custom rather than a formal national ceremony, so participation varies by household and region.
The tradition can be confused with New Year's practices in other Nordic countries because Denmark shares many cultural and historical connections with its neighbors. The chair-jumping custom is specifically the Danish association; it is separate from Sweden's rice pudding traditions and Finland's tin-casting fortune ritual.