Does the sun never set mean a place?

Britain was once known as the "empire where the sun never sets" and Spain was the first.

The term "empire that never sets" was first used to describe the Spanish empire in the16th century. It comes from the words of King Carlos I of Spain (that is, Emperor Carl V of the Holy Roman Empire): "In our territory, the sun will never set." In the19th century, this word was widely used as another name for the British Empire. Especially in the Victorian era, the world map published by Britain marked the British Empire in pink, which vividly showed Britain's hegemony on a global scale.

The sun never sets should mean that the sun never sets in a certain place (such as Britain), because there are many colonies there.