Alaska Time Zone to 1967 refer to this zone as Central Alaska Standard Time (CAT) or as Alaska Standard Time (AST). In 1966, the Uniform Time Act renamed the UTC−10 zone to Alaska-Hawaii Standard Time (AHST), effective April 1, 1967. This zone was renamed in 1983 to Hawaii-Aleutian Standard Time when the majority of Alaska was moved out of the zone. Prior to 1983, the current Alaska Time Zone (UTC−9) was known as the Yukon Time Zone, observing Yukon Standard Time (YST). This time zone included Canada's Yukon Territory and a small portion of Alaska including Yakutat. The Alaska Panhandle communities were in
The Standard School Broadcast in Salt Lake City, Utah, KTAR in Phoenix, Arizona, KGLU in Safford, Arizona, KVOA in Tucson, Arizona, and KYUM in Yuma, Arizona, on Thursday at 10 a.m. Pacific time and 11 a.m. Mountain time. At that time, Carl Kalesch was the music director for the programs and John Grover was the announcer. The theme music for "The Standard School Broadcast," as well as "The Standard Hour," was "This Hour Is Yours". The theme was composed by Julius Haug, a violinist in the San Francisco Symphony Orchestra. "It was simple theme music, 45 seconds long," wrote radio historian John Dunning, "and