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.
Alaska Time Zone
With the reorganization of Alaska's time zones in 1983 to place the entire state in either a zone based on UTC−09:00 or UTC−10:00, the Yukon Time Zone based on UTC−09:00 was renamed the Alaska Time Zone.