Kenya (/ˈkɛnjə/ or /ˈkiːnjə/), officially the Republic of Kenya, is a country in the African Great Lakes region of East Africa. Its capital and largest city is Nairobi. Kenya lies on the equator with the Indian Ocean to the south-east, Tanzania to the south, Uganda to the west, South Sudan to the north-west, Ethiopia to the north and Somalia to the north-east. Kenya covers 581,309 km2 (224,445 sq mi) and has a population of approximately 44 million as of July 2012. The capital, Nairobi, is a regional commercial hub. The economy of Kenya is the largest by GDP in Southeast and Central Africa. Agriculture is a major employer; the country traditionally exports tea and coffee and has more recently begun to export fresh flowers to Europe. Kenya's climate varies from tropical along the coast to temperate inland to arid in the north and northeast parts of the country. The area receives a great deal of sunshine every month, and summer clothes are worn throughout the year. It is usually cool at night and early in the morning inland at higher elevations. Kenyans generally have three meals in a day – breakfast in the morning (kiamsha kinywa), lunch in the after noon (chakula cha mchana) and supper in the evening (chakula cha jioni). In between, they have the 10 o'clock tea (chai ya saa nne) and 4 pm tea (chai ya saa kumi). Breakfast is usually tea or porridge with bread, chapati, mahamri, boiled sweet potatoes or yams. Ugali with vegetables, sour milk, meat, fish or any other stew is generally eaten by much of the population for lunch or supper. Regional variations and dishes also exist.