Vatican City operates on Central European Time (CET) during winter months, which is 1 hour ahead of Coordinated Universal Time (UTC+1). During daylight saving time, observed from the last Sunday in March to the last Sunday in October, Vatican City switches to Central European Summer Time (CEST), which is UTC+2.
All of Vatican City follows the same timezone as Rome, Italy, which surrounds the city-state on all sides. Vatican City is the smallest internationally recognized independent state in the world by both area and population.
Vatican City is only 0.44 square kilometers (about 121 acres), making it smaller than many golf courses. The Papal Audiences, when the Pope addresses the public, typically begin at 10:00 AM local time on Wednesdays. St. Peter's Basilica contains one of the world's largest clocks, with a dial over 2 meters in diameter.