The test was conducted in the Jornada del Muerto desert about 35 miles (56 km) southeast of Socorro, New Mexico, on what was then the USAAF Alamogordo Bombing and Gunnery Range (now part of White Sands Missile Range).
USA and Canada past and future DST schedules here. Hawaii is in the Hawaii-Aleutian Time Zone in the United States, which is 10 hours behind Greenwich Mean Time ( GMT-10 ). Unlike most states in the US, Daylight Saving Time is not observed in Hawaii , which maintains its 10 hours difference behind GMT throughout the year.
The United States spans 6 time zones. It shares four time zones with Canada ( Eastern Time , Central Time , Mountain Time and Pacific Time ). Hawaii Time and Alaska Time are separate time zones. View current time in all US time zones: World Clock USA. Daylight Saving Time Since 2007: Daylight Saving Time begins for most of the United States at 2 a.m. on the second Sunday of March . Time revert to standard time at 2 a.m. on the first Sunday in November .