Bhutanese passport holders can visit 16 Western Africa countries. These countries include Niger, Nigeria, Benin, Togo. Find all countries to travel on visa. See a visual map of visa requirements on the world map. Find the capital, languages, and currencies used. Bhutan is part of Southern Asia, Asia Official language is Dzongkha. Bhutan uses metric system (kilograms, centimeters, °C). Time zone is UTC+06:00.