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
Standard Swedish there is no one standard for spoken Swedish. There are several regional varieties (acrolects or prestige dialects) that are used in official contexts. The major regional variants include those of South Sweden (based on South Swedish dialects), Western Sweden (centered on Gothenburg), Central Sweden (centered on the capital of Stockholm) and Northern Sweden (based on Norrland dialects). There is also a separate standard for Swedish in Finland based on Finland Swedish. In national broadcast media Sweden, several of these occur, though the Central Swedish variant dominates and is often perceived as more "standardized" and more neutral than the others. Swedish