São Tomé and Príncipe operates on Greenwich Mean Time (GMT), which is Coordinated Universal Time (UTC+0). The country does not observe daylight saving time, so the offset remains constant throughout the year.
Both islands of this nation follow the same timezone. São Tomé is the larger island where the capital city of São Tomé is located. Príncipe is the smaller, more secluded island to the north. Together they form Africa's second-smallest country.
São Tomé and Príncipe is located almost exactly on the Equator, and the country contains Ilhéu das Rolas, an islet where you can stand with one foot in each hemisphere. The islands were uninhabited until Portuguese explorers discovered them in the 15th century and are known for their high-quality cocoa production.