# Historical time zones of China

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 (Beijing) in 1918. The proposal divided the country into five time zones: Kunlun (UTC+05:30), Sinkiang-Tibet (UTC+06:00), Kansu-Szechwan (UTC+07:00), Changhua (UTC+08:00) and Chinghai (UTC+08:30). These time zones were ratified in 1939 by the Nationalist government in the Standard Time Conference, hosted by the Ministry of Interior of Executive Yuan. Because of the Second Sino-Japanese War, it was also stated that Kansu-Szechwan time shall be the sole national time during the war time. After the war in 1945, these five times zones were implemented national widely. In 1949, after the Chinese Civil War, the Central People's Government abolished the five time zones and announced to use a single time zone UTC+08:00 named Beijing Time (北京时间). The term Changhua Standard Time (中原標準時間) was still used by the Government of the Republic of China on Taiwan until the early 2000s.

## Overview of the time zones

Times zones of China from 1918 to 1949 (incl. claimed territories) :
| Color | | | | | |
| Time offset | UTC+05:30 | UTC+06:00 | UTC+07:00 | UTC+08:00 | UTC+08:30 |
| Name | Kunlun | Sinkiang-Tibet | Kansu-Szechwan | Chungyuan | Changpai |
| Chinese | 崑崙時區 | 新藏時區 | 隴蜀時區 | 中原時區 | 長白時區 |
| Pinyin | Kūnlún Shíqū | Xīn-Zàng Shíqū | Lǒng-Shǔ Shíqū | Zhōngyuán Shíqū | Chángbái Shíqū |
| Name origin | Kunlun Mountains | Sinkiang (Xinjiang) and Tibet | Kansu (Gansu) and Szechwan (Sichuan) | Central Plain | Changpai (Changbai) Mountains |
| Ref. longitude | 82°30′E | 90°E | 105°E | 120°E | 127°30′E |
| Approx. present day tz database | CN Asia/Kashgar | CN Asia/Urumqi MN Asia/Hovd | CN Asia/Chongqing MN Asia/Ulaanbaatar | CN Asia/Shanghai HK Asia/Hong_Kong MC Asia/Macau MN Asia/Choibalsan TW Asia/Taipei | CN Asia/Harbin |

## Time zones and administrative divisions

| Time zone | Historical administrative divisions (as of 1945–49) | Present administrative divisions |
| Kunlun 崑崙時區 (UTC+05:30) | Western part of Sinkiang Western part of Tibet Area | Western part of Tibet Autonomous Region Western part of Xinjiang Uyghur Autonomous Region |
| Sinkiang-Tibet 新藏時區 (UTC+06:00) | Eastern part of Sinkiang Eastern part of Tibet Area Western part of Sikang Western part of Tsinghai Western part of Mongolia Area (until 1946) | Eastern part of Tibet Autonomous Region Eastern part of Xinjiang Uyghur Autonomous Region Western part of Qinghai Western part of Mongolia Tuva Republic of Russia |
| Kansu-Szechwan 隴蜀時區 (UTC+07:00) | Kansu Kwangsi Kweichow Ningsia Shensi Suiyuan Szechwan Yunnan Eastern part of Sikang Eastern part of Tsinghai Central part of Mongolia Area (until 1946) | Municipality of Chongqing Gansu Guizhou Shaanxi Sichuan Yunnan Guangxi Zhuang Autonomous Region Ningxia Hui Autonomous Region Western part of Inner Mongolia Autonomous Region Eastern part of Qinghai Central part of Mongolia |
| Chungyuan 中原時區 (UTC+08:00) | Anhwei Chahar Chekiang Fukien Honan Hopeh Hsingan Hunan Hupeh Jehol Kiangsi Kiangsu Kwangtung Liaoning Liaopeh Shansi Shantung Taiwan (after 1945) Eastern part of the Mongolia Area (until 1946) Hainan Special Administrative Region (split from Kwangtung in 1949) | Municipality of Beijing Municipality of Kaohsiung Municipality of New Taipei Municipality of Shanghai Municipality of Taichung Municipality of Tainan Municipality of Taipei Municipality of Taoyuan Municipality of Tianjin Anhui PRC part of Fujian ROC part of Fujian (Kinmen and Matsu Islands) Guangdong Hong Kong and Macau Hainan Hebei Henan Hubei Hunan Jiangsu Jiangxi Shandong Shanxi Taiwan (including Penghu) Zhejiang Eastern part of Inner Mongolia Autonomous Region Western part of Liaoning Eastern part of Mongolia |
| Changpai 長白時區 (UTC+08:30) | Antung Heilungkiang Hokiang Kirin Nunkiang Sungkiang | Heilongjiang Jilin Eastern part of Liaoning |