Bulgaria operates on Eastern European Time (EET) during winter months, which is 2 hours ahead of Coordinated Universal Time (UTC+2). During daylight saving time, observed from the last Sunday in March to the last Sunday in October, Bulgaria switches to Eastern European Summer Time (EEST), which is UTC+3.
All of Bulgaria follows the same timezone. Major cities including Sofia, Plovdiv, Varna, and Burgas all observe the same time. Bulgaria shares its timezone with Romania and Greece.
Bulgaria is one of the oldest countries in Europe, founded in 681 AD. The Cyrillic alphabet, used by over 250 million people worldwide, was created in Bulgaria in the 9th century. Bulgaria is the world's largest exporter of rose oil, producing about 70% of the global supply in the famous Rose Valley.