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 Insurance Center marble. Standard Insurance Center The Standard Insurance Center, originally the Georgia-Pacific Building, is a 27-story office building in Portland, Oregon. Completed in 1970, it currently serves as part of the headquarters of The Standard, the brand name under which Standard Insurance Company and other subsidiaries of StanCorp Financial Group, Inc., do business. Standard also owns the 16-story Standard Plaza, located two blocks south along 5th Avenue. The Georgia-Pacific Building was commissioned by Georgia-Pacific and designed by the firm of Skidmore, Owings & Merrill (SOM). At the time of construction, it was the tallest reinforced concrete building in the world. It