Hawaii–Aleutian Time Zone Hawaii–Aleutian Time Zone The Hawaii–Aleutian Time Zone observes Hawaii–Aleutian Standard Time (HST), by subtracting ten hours from Coordinated Universal Time (). The clock time in this zone is based on the mean solar time of the 150th meridian west of the Greenwich Observatory. The zone takes its name from the two areas it includes: Hawaii and the portion of Alaska's Aleutian Islands west of 169° 30′ W longitude. During daylight saving time, the Alaskan portion observes Hawaii–Aleutian Daylight Time (HDT, ), while Hawaii stays on standard time. From 1900 until 1947, GMT−10:30 was used as standard time in Hawaii. French
The Standard Hour series. A tradition of more than 30 years began with the first broadcast on the NBC Pacific Network, on October 24, 1926. "Though it was heard only on a partial network," wrote radio historian John Dunning, ""The Standard Hour" was a major musical series that spanned the entire length of network broadcasting." A 1943 brochure shows that the programs were carried on KPO in San Francisco, KFI in Los Angeles, KMJ in Fresno, KGW in Portland, Oregon, KOMO in Seattle, Washington, and KHQ in Spokane, Washington. The Sunday-evening series was ultimately heard in Hawaii and Alaska. The theme music for