Estonia 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, Estonia switches to Eastern European Summer Time (EEST), which is UTC+3.
All of Estonia follows the same timezone. Major cities including Tallinn, Tartu, and Pärnu all observe the same time. Estonia shares its timezone with Finland and the other Baltic states.
Estonia is one of the world's most digitally advanced nations. It was the first country to offer e-residency to foreigners and the first to conduct nationwide elections online. Tallinn's medieval Old Town is a UNESCO World Heritage Site. Skype was created by Estonian developers in 2003.