Peter Montesano wrote that once while he was living in Newfoundland he pulled out a map and noticed that North America has nine time zones. Having visited the western Aleutians and the seven time ...

American and Canadian railroads enacted time zones — a concept that schedules all aspects of life today — on this day in history, Nov. 18, 1883. The rail industry's creation of time zones was ...

There were more than 140 local times in North America before time zones ... observe Eastern Standard Time statewide, according to the U.S. time zone map.