Time in China
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China, with its large territory, spans across the longitude of five time zones. For the past few decades, however, the geographical region of China, which includes mainland China, Hong Kong, Macau and Taiwan, has been in the same time zone which is eight hours ahead of the Coordinated Universal Time (UTC+8).
Although all jurisdictions within the region are placed under the same time zone, due to historical and political reasons different jurisdictions keep their own time standard and have their own names.
- In mainland China, which is under the administration of the People's Republic of China (PRC), the time standard is called the Beijing Time or Chinese Standard Time. A summer daylight saving time was observed from 1986 through 1991; but not now.
- The territories under effective control of the Republic of China (ROC), such as the islands of Taiwan, Penghu, Quemoy and Matsu, is within the same time zone as its Chungyuan Standard Time (or Central Standard Time), although it is now more frequently known as National Standard Time or Taiwan Time [1].
- In Hong Kong, the standard is called Hong Kong Time.
- In Macau, it is Macao Standard Time [2].
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[edit] History
Time zones were first set up and made official in China in 1912 under the Republic of China. The country was divided into five time zones, namely GMT+5.5, GMT+6, GMT+7, GMT+8 and GMT+8.5. Before that, time varied, while astrological predictions was conducted according to the time standard based on the locations of then capitals of the imperial dynasties.
After the Chinese Civil War in 1949, the Communist Party took over mainland China. The government of the then ruling Kuomintang was relocated to Taipei (which controlled Taiwan and other islands).
The communist People's Republic of China established one single time zone (UTC+8) for the entirety of its claimed territories, while the Republic of China under the Kuomintang continued to place the territories it administered under the UTC+8 time zone. In other words, the two had different policies, but the outcome was that they were all placed under the same time zone.
Since the mid-19th century until 1997 and 1999, Hong Kong and Macau had been colonies of the United Kingdom and Portugal respectively. Despite being part of the People's Republic of China, as special administrative regions they have their own policies regarding time zones over the respective regions. Due to their geographical locations, both are within the GMT/UTC+8 time zone.
[edit] Time zones of the Republic of China from 1912 to 1949
In 1912, the Central Observatory of the Republic of China in Peking (Beijing) divided the country into five time zones, namely Kunlun Time Zone (GMT+5.5), Sinkiang-Tibet Time Zone (GMT+6), Kansu-Szechuan Time Zone (GMT+7), Chungyuan Standard Time Zone(GMT+8), and Changpai Time Zone (GMT+8.5). These time zones were ratified in 1939 in the standard time conference of the Ministry of Interior of the Executive Yuan.
These time zones are not in effective use after 1949, when the PRC was established on mainland China because the new government had its own policies regarding the time zones on mainland China. However, as the ROC still claimed that she had sovereignty over mainland China, the time zones that were assigned in 1912 are still in use in the view of the Government of the ROC, which had retreated to Taiwan. That is the reason why some government departments on Taiwan still refer to the time on Taiwan as "Chungyuan Standard Time" nowadays, although a lot of people want to officially change the name of the time zone to "Taiwan Time".
[edit] Kunlun Time Zone
The Kunlun Time Zone (崑崙時區) was assigned to the area around the Kunlun mountain ranges in the far west of China, based on the time on the longitude 82°15'E. Administrative divisions within this time zone were:
- western part of the Sinkiang Province (now Xinjiang Autonomous Region of the People's Republic of China (PRC))
- western part the Tibet Region (now part of the Tibet Autonomous Region of the PRC)
[edit] Sinkiang-Tibet Time Zone
The Sinkiang-Tibet Time Zone (新藏時區) was named after the administrative divisions of Sinkiang and Tibet, which had the majority of their land lying in this time zone. The time zone also covered the western halves of their neighbouring administrative divisions. The time in this time zone was based on that on the longitude 90°E. Administrative divisions within this time zone included:
- eastern part of the Sinkiang Province (now Xinjiang Autonomous Region of the PRC)
- eastern part of the Tibet Region (now part of the Tibet Autonomous Region of the PRC)
- western part of Tsinghai Province (now transliterated as Qinghai Province by the PRC)
- western part of Sikang Province (now part of the Tibet Autonomous Region and Sichuan Province of the PRC)
- the western part of the Mongolia Region (now the independent state of Mongolia).
[edit] Kansu-Szechuan Time Zone
The Kansu-Szechuan Time Zone (隴蜀時區) covered the mid-western part of China, based on the longitude 105°E. Administrative divisions within this time zone were:
- Kansu Province (now transliterated as Gansu Province by the PRC)
- Szechuan Province (now part of the Sichuan Province of the PRC)
- Ningsia Province (now the Ningxia Autonomous Region of the PRC)
- Suiyuan Province (now part of the Inner Mongolia Autonomous Region of the PRC)
- Shensi Province (now transliterated as Shaanxi Province by the PRC)
- Kweichow Province (now transliterated as Guizhou Province by the PRC)
- Kwangsi Province (now transliterated as Guangxi Province by the PRC)
- Yunnan Province
- eastern half of the Tsinghai Province
- eastern half of the Sikang Province
- central part of the Mongolia Region
[edit] Chungyuan Standard Time Zone
The Chungyuan Standard Time Zone (中原標準時區), or Central Standard Time Zone, covered the densely populated area of the ROC, including the then capital Nanking. The time in this time zone was based on the longitude 120°E. Administrative divisions in this time zone were:
- Hsingan Province (now part of the Inner Mongolia Autonomous Region of the PRC)
- Liaopeh Province (now part of the Inner Mongolia Autonomous Region of the PRC)
- Chahar Province (now part of the Inner Mongolia Autonomous Region)
- Hopeh Province (now transliterated as Hebei Province by the PRC)
- Jehol Province (now part of the Hebei Province and the Inner Mongolia Autonomous Region of the PRC)
- Liaoning Province
- Shantung Province (now transliterated as Shandong Province by the PRC)
- Shansi Province (now transliterated as Shanxi Province by the PRC)
- Anhwei Province (no transliterated as Anhui Province by the PRC)
- Kiangsu Province (now transliterated as Jiangsu Province by the PRC)
- Chekiang Province (now transliterated as Zhejiang Province by the PRC)
- Hupeh Province (now transliterated as Hubei Province by the PRC)
- Hunan Provice
- Kiangsi Province (now transliterated as Jiangxi Province by the PRC)
- Fukien Province (now transliterated as Fujian Province by the PRC)
- Kwangtung Province (now transliterated as Guangdong Province by the PRC)
- Hainan Special Administrative District (now Hainan Province of the PRC)
- Taiwan Province (retroceded by Japan in 1945 after the World War II, still administered by the Republic of China)
- eastern part of the Mongolia Region
[edit] Changpai Time Zone
The Changpai Time Zone (長白時區) covered Northeast China. Named after the Changpai mountain range on the border between China and Korea, it was based on that on the longitude 127°30'E. Administrative divisions within this time zone included:
- Heilungkiang province (now part of the Heilongjiang Province of the PRC)
- Hokiang province (now part of the Heilongjiang Province of the PRC)
- Kirin province (now part of the Jilin Province of the PRC)
- Nunkiang province (now part of the Jilin Province of the PRC)
- Sungkiang province (now part of the Jilin Province the PRC)
- Antung province (now part of the Liaoning Province of the PRC)
[edit] Time zones of the People's Republic of China in mainland China
- Main article: China Standard Time
After the Chinese Civil War with the then ruling Kuomintang, the Communist Party gained control of the Chinese mainland and established the People's Republic of China in 1949. A unified time zone - GMT+8 - was established for all its claimed territories, called Beijing Time (sometimes known as Chinese Standard Time).
For a time the people's congress of Xinjiang Uyghur Autonomous Region, thanks to its geographical location in the westernmost part of the country, had a Ürümqi Time, which was 2 hours behind Beijing Time. This time standard is more usually observed by the ethnic Uyghurs and less common among ethnic Hans. [3] [4] [5]
[edit] Time zone of the Republic of China since 1949
Some Taiwan independence supporters have semi-seriously suggested advancing Taiwan's time zone by one hour as a symbolic assertion of Taiwan's separation from China. However, critics have pointed out that it would instead symbolize a reversion to Japanese colonialism, since Japan Standard Time is one hour ahead of Chinese Standard Time, even though Taiwan's time was one hour behind that of mainland Japan's before 1937, while Taiwan was under Japanese occupation from 1895 to 1945.
[edit] Time zone of Hong Kong
Hong Kong Time is the time standard in the Hong Kong Special Administrative Region of the People's Republic of China. The time is UTC+8 all year round. Due to longitude, Hong Kong has the same time as that in the rest of China. Therefore, Hong Kong Time is actually in the same time zone as the Chinese Standard Time. Greenwich Mean Time was adopted as the basis in 1904, and UTC was adopted as a standard in 1972. Before that, local time was determined by astronomical observations at the Hong Kong Observatory using a 6-inch Lee Equatorial and a 3-inch Transit Circle.
[edit] Time zone of Macau
The Macau Standard Time is the time standard in the Macau Special Administrative Region of the People's Republic of China. Like the rest of China, it is also in the UTC+8 time zone all year round. Similar to Hong Kong, there was daylight saving time in the past. However, the low latitude in Macau makes it unnecessary to adopt a daylight saving time.
[edit] See also
- other zones at UTC+8
[edit] External links
Government departments responsible for time services:
- National Time Service Center, the Chinese Academy of Sciences (People's Republic of China, responsible for time standard in mainland China)
- Hong Kong Observatory (Hong Kong)
- Direccão dos Servicos Meterológicos e Geofisicos (Macau)
- Nation Standard Time and Frequency Laboratory, Bureau of Standards, Metrology & Inspection, Ministry of Economic Affairs (Republic of China)