Cleveland Abbe
In order to compile his information, Abbe required a time-keeping system that was consistent among the stations. To accomplish this he divided the United States into four standard time zones. He published, in 1879, a paper titled "Report on Standard Time". In 1883, he convinced North American railroad companies to adopt his time-zone system. In 1884, Britain, which had already adopted its own standard time system for England, Scotland, and Wales, helped gather international consent for global time. In time, the American government, influenced in part by his 1879 paper, adopted the time-zone system.
United States Virgin Islands
The U.S. Virgin Islands are located in the Atlantic Standard Time zone and do not participate in daylight saving time. When the mainland United States is on Standard Time, the U.S. Virgin Islands are one hour ahead of Eastern Standard Time. When the mainland United States is on daylight saving time, Eastern Daylight Time is the same as Atlantic Standard Time.