What is "sittning"

A sittning ("sitting", often shortened to sits or sitz, ) is in Sweden and Finland a seated meal held within a set time frame. In restaurants it may refer to a seating, i.e. the time given for a crowd to have their meal. The term is also used to denote the part of a party that is a seated meal. Though it can refer to any kind of meal, it is often used to refer to a student sittning.