Effects of time zones on North American broadcasting Effects of time zones on North American broadcasting The scheduling of television programming in North America (namely the United States, Canada, and Mexico) must cope with different time zones. The United States (excluding territories) has six time zones (Hawaii–Aleutian, Alaska, Pacific, Mountain, Central and Eastern), with further variation in the observance of daylight saving time. Canada also has six time zones (Pacific, Mountain, Central, Eastern, Atlantic and Newfoundland). Mexico has four time zones (Pacific, Mountain, Central, and Eastern). This requires broadcast and pay television networks in each country to shift programs in time to show them in different regions. Canadian
The Standard Hour The Standard Hour The Standard Hour, also known as The Standard Symphony Hour, was a weekly radio broadcast by the San Francisco Symphony Orchestra and the San Francisco Opera first heard in 1926. The series was carried on the NBC Pacific radio network on Sundays at 8:30 p.m. Pacific time. Also called "The Standard Symphony Hour", "The Standard Hour" was sponsored by Standard Oil of California. The series began in 1926 in San Francisco, when the San Francisco Symphony faced bankruptcy. Standard Oil of California paid the orchestra's debts and in return was given broadcast rights to that year's concert