There is a huge distance between the northern and the southern points of the territory. The northern-most island, Ascension, is at latitude of the equator and the southern-most island, Gough Island is at . Between St Helena and Tristan da Cunha is the Tropic of Capricorn. The distance between the northern tip of Ascension Island and the southern tip of Gough Island is . The whole territory lies in the Western Hemisphere and has the same time zone: Greenwich Mean Time. Daylight saving time is not observed.