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 Tibetan Standard Tibetan Standard Tibetan is the most widely spoken form of the Tibetic languages. It is based on the speech of Lhasa, an Ü-Tsang (Central Tibetan) dialect. For this reason, Standard Tibetan is often called Lhasa Tibetan. Tibetan is an official language of the Tibet Autonomous Region of the People's Republic of China. The written language is based on Classical Tibetan and is highly conservative. Like many languages, Standard Tibetan has a variety of language registers: Tibetan is an ergative language. Grammatical constituents broadly have head-final word order: Unlike many other languages of East Asia and especially Chinese, another Sino-Tibetan