The island of Newfoundland operates on Newfoundland Standard Time (NST) during winter months, which is 3 hours and 30 minutes behind Coordinated Universal Time (UTC-3:30). During daylight saving time, observed from the second Sunday in March to the first Sunday in November, it switches to Newfoundland Daylight Time (NDT), which is UTC-2:30.
Newfoundland is the only place in North America that uses a half-hour offset timezone. St. John's, the provincial capital, and most of the island observe NST/NDT. Most of Labrador (the mainland portion) follows Atlantic Time (AST/ADT), except for the southeast coast which uses NST/NDT.
Newfoundland and Labrador is the easternmost province in North America, and St. John's is the oldest English-founded city in North America (1497). Cape Spear, just outside St. John's, is the easternmost point in North America. The province is also where the first transatlantic wireless signal was received in 1901 by Guglielmo Marconi.