Greenland spans 4 time zones, ranging from UTC-4 to UTC+0. Most of Greenland, including the capital Nuuk, uses West Greenland Time (WGT) at UTC-3, with daylight saving time (WGST, UTC-2) observed from the last Sunday in March to the last Sunday in October.
Greenland is an autonomous territory within the Kingdom of Denmark. Despite being geographically part of North America, it maintains close ties with Europe. The eastern coast uses different time zones, and Danmarkshavn in the northeast uses GMT (UTC+0) year-round.
Greenland is the world's largest island and has a population of only about 56,000 people—less than many small towns. In 2023, Greenland abolished daylight saving time in most areas, but Thule Air Base still follows US Eastern Time to coordinate with the US military. During summer, much of Greenland experiences the midnight sun, making traditional timekeeping less relevant.