Botswana (full name, The Republic of Botswana) covers an area of approximately 582,000 sq km. Its terrain consists of predominantly flat to gently rolling tableland with the Kalahari Desert in the southwest. Botswana borders Namibia, South Africa and Zimbabwe, and is completely landlocked. The country is divided into 9 districts (Central, Ghanzi, Kgalagadi, Kgatleng, Kweneng, Northeast, Northwest and Southeast and Southern) and 5 town councils (Francistown, Gaborone, Jwaneng, Lobatse and Selebi-Pikwe). Gaborone is the capital, with a time difference of 2 hours ahead of GMT. The currency is the Pula, and exports include diamonds, copper, nickel and beef. The population of approximately 2,000,000 people comprises an ethnic makeup that is 79% Tswana (or Setswana) and 11% Kalanga. Primary languages are English and Setswana, and the predominant religions are Christianity and indigenous beliefs.