El Salvador (full name, Republic of El Salvador) covers an area of approximately 21,000 sq km. Its terrain is mostly mountainous with a narrow coastal belt and a central plateau. El Salvador borders Guatemala and Honduras, and has 307 km of coastline. The country is divided into 14 departments: Ahuachapan, Cabanas, Chalatenango, Cuscatlan, La Libertad, La Paz, La Union, Morazan, San Miguel, San Salvador, San Vicente, Santa Ana, Sonsonate and Usulutan. San Salvador is the capital, with a time difference of 6 hours behind that of GMT. The currency is the US dollar and the Salvadoran colon, and exports include offshore assembly exports, coffee, sugar, shrimp, textiles, chemicals and electricity. The population of approximately 7,200,000 people comprises an ethnic makeup that is 90% mestizo (mixed Amerindian-Spanish). The primary language is Spanish, and the predominant religion is Christianity.