Alaska Time Zone to 03:00 LDT on the second Sunday in March and returns at 02:00 LDT to 01:00 LST on the first Sunday in November. Two time zones have been referred to as the "Alaska Time Zone": a zone based on UTC−10 that covered much of Central Alaska in the early 20th century, and a zone based on UTC−9 zone that has covered all of the state except the Aleutian Islands since 1983. The Standard Time Act of 1918 authorized the Interstate Commerce Commission to define each time zone. The United States Standard Alaska Time was designated as UTC−10. Some references prior
The Standard School Broadcast of listeners. A few episodes of "The Standard School Broadcast" are available from old-time radio program collectors. In the 1970s, the Chevron Research Company released a series of recordings edited from "The Standard School Broadcast" as a public service. The LP records, with teachers guides, were available free of charge to elementary and junior high schools throughout the West, Rocky Mountain area and the Southwest. These out-of-print recordings have been sold on various websites. The Standard School Broadcast The Standard School Broadcast was a weekly educational radio program that went on the air in 1928 and promoted music appreciation for