This term serves to distinguish the South American area from the insular territories, known as Insular Chile, as from the Antarctic Chile (Chilean Antarctic Territory).
The existence of this three areas of effective or claimed Chilean sovereignty is what supports the existing tricontinental principle in this country.
[1][2][3] In addition, this term specifies the time zones of mainland Chile and the Juan Fernández Islands and the Desventuradas Islands, located in the UTC−4 time zone, as "continental Chile" however, the Magallanes and Chilean Antarctica Region are in the UTC–3 time zone.
Easter Island and the Isla Salas y Gómez, both in Polynesia, are in the UTC−6 time zone.
However, considering the claim in Antarctic, this percent fall down to only 37.71% of national's surface.