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The tz database partitions the world into regions where local clocks all show the same time. This map was made by combining version 2023d with OpenStreetMap data, using open source software. [1] This is a list of time zones from release 2025a of the tz database. [2]
It is the largest sovereign nation in the world that officially observes only one time zone. The nationwide standardized time is named Beijing Time (BJT; 北京时间; Pei-ching Shih-chien) domestically and China Standard Time (CST) internationally. [1] Daylight saving time has not been observed since 1991. [2] China Standard Time (UTC+8) is ...
UTC−08:00 – Pacific Time zone: the Pacific coast states, the Idaho Panhandle and most of Nevada and Oregon UTC−07:00 – Mountain Time zone: most of Idaho, part of Oregon, and the Mountain states plus western parts of some adjacent states UTC−06:00 – Central Time zone: a large area spanning from the Gulf Coast to the Great Lakes
Time zones of the world. A time zone is an area which observes a uniform standard time for legal, commercial and social purposes. Time zones tend to follow the boundaries between countries and their subdivisions instead of strictly following longitude, because it is convenient for areas in frequent communication to keep the same time.
Such designations can be ambiguous; for example, "CST" can mean China Standard Time (UTC+08:00), Cuba Standard Time (UTC−05:00), and (North American) Central Standard Time (UTC−06:00), and it is also a widely used variant of ACST (Australian Central Standard Time, UTC+9:30). Such designations predate both ISO 8601 and the internet era; in ...
The military time zone system ensures clear communication in a concise manner, and avoids confusion when coordinating across time zones. The CCEB , representing the armed forces of Australia, Canada, New Zealand, the United Kingdom, and the United States, publishes the military time zone system as the ACP 121 standard. [ 1 ]
The time zones of China refer to the time zone divisions used in China between 1918 and 1949. The first time zone plan was proposed by the Central Observatory (now Beijing Ancient Observatory) of the Beiyang government in Peking in 1918. The proposal divided the country into five time zones: Kunlun , Sinkiang-Tibet , Kansu-Szechwan , Changhua ...
Xinjiang Time has been abolished and re-established multiple times, particularly during the 1970s and 1980s. In February 1986, the Chinese government approved the use of Xinjiang Time in Xinjiang Uyghur Autonomous Region (thus excluding area colonized by Xinjiang Production and Construction Corps) for civil purposes, while military, railroad, aviation, and telecommunication sectors were ...