USA HISTORY

Detailed explanation-1: -The major railroad companies as a result began to operate on a coordinated system of four time zones starting in 1883. Standard time was transportation-driven and, as a result, the government coordination of time zones was handled by transportation agencies.

Detailed explanation-2: -On November 18, 1883, the railroads moved forward with the adoption of four U.S. time zones, an idea that had been proposed 11 years earlier by Charles Dowd, a Yale-educated school principal. The time zones, Eastern, Central, Mountain and Pacific, are still in place today.

Detailed explanation-3: -To make rail service safer and more reliable, in 1883 the American Railway Association divided the country into four time zones in regions where the same time was kept. Air brakes enabled railroads to put longer and heavier trains on their lines.

Detailed explanation-4: -The continental United States is divided into four time zones: Eastern, Central, Mountain and Pacific. There are also time zones for Alaska and Hawaii.

Detailed explanation-5: -On November 18, 1883, precisely at noon, North American railroads switched to a new standard time system for rail operations, which they called Standard Railway Time(SRT).