Alaskan Time Zone

I guess I hadn't considered this, or maybe just assumed it was all Pacific Time Zone, but I discovered today that all of Alaska but the Aleutian Islands & St Lawrence Island is on Alaskan Time. So Alaskan Time is 4 hours earlier than Eastern, 3 hours earlier than Central, 2 hours earlier than Mountain, and 1 hour earlier than Pacific. The Aleutian islands & St. Lawrence Island are in the Hawaiian-Aleutian Time Zone with is one hour earlier than Alaska Time but do not switch for daylight savings time.

Here is some more detailed information from Yahoo! Answers...
"Alaskan Standard (or Daylight) Time which is written as AKST (or AKDT)... they are one hour behind Pacific and one hour ahead of Hawaiian Time. Alaska is four hours behind the east coast. The time zone includes nearly all of the state of Alaska and is one hour behind the Pacific Time Zone. The western Aleutian Islands observe Hawaii-Aleutian Time, one hour behind the remainder of the state.The Alaska Time Zone is what was previously known as the Yukon Standard Time Zone (YST). However, the Yukon Territory switched to the Pacific Standard Time Zone in 1975 and the time zone was not used (except for Yakutat) until 1983 when the state of Alaska decided to move most of the state to UTC−9. Prior to that the Alaska Panhandle communities were in the Pacific Time Zone, while most of the interior was on UTC−10. Nome and the Aleutians previously observed Bering Standard Time or UTC−11. In April in Anchorage, it is daylight for about fifteen hours this time of year. According to the tables, today the sunrise is at 6:15 am and sunset is at 9:40 pm. The farther north you go, the more daylight there is in spring."
http://answers.yahoo.com/question/index?qid=20090423141750AArGlRs