UTC+08:00

As standard time (all year round)

North Asia

• – Irkutsk Time
• *Far Eastern Federal District
• **Buryatia
• *Siberian Federal District
• **Irkutsk Oblast

  East Asia

• – China Standard Time
• – Hong Kong Time
• – Macau Time
• – Time in Mongolia
• *Eastern part, including Ulaanbaatar
• – National Standard Time

  Southeast Asia

• – Brunei Darussalam Standard Time
• – Central Indonesia Time
• *East Kalimantan, Lesser Sunda Islands, North Kalimantan, South Kalimantan and Sulawesi
• – Malaysia Standard Time
• – Philippine Standard Time
• – Singapore Standard Time

  Oceania

• *Western Australia

  Antarctica

• Some bases in Antarctica. See also Time in Antarctica

  Discrepancies between official UTC+08:00 and geographical UTC+08:00

• Parts of Indonesia, including eastern East Java with its capital city Surabaya, most of Central Kalimantan, and eastern part of West Kalimantan, where UTC+07:00 is used.
• East Timor, where UTC+09:00 is used.
• The western parts of Korea, including the South Korean capital city, Seoul, where UTC+09:00 is used.

  Areas located outside UTC+08:00 longitudes using UTC+08:00 time

Areas between 127°30′ E and 142°30′ E ("physical" [UTC+09:00])

• Parts of northeast China including the eastern half of Heilongjiang Province and the Yanbian Korean Autonomous Prefecture in Jilin Province.
• Easternmost parts of Western Australia.

  Areas between 97°30′ E and 112°30′ E ("physical" [UTC+07:00])

• Singapore
• Malaysia:
• *Western part of Sarawak, including its capital Kuching.
• *Peninsular Malaysia, where the nation's capital Kuala Lumpur is located.
• Many parts of central China including:
• *Hainan
• *Guangxi
• *Yunnan
• *Guizhou
• *Sichuan
• *Chongqing
• *Shaanxi
• *Ningxia
• *Gansu
• *western ⅔ of Hunan
• *western half of:
• **Hubei
• **Shanxi
• **Inner Mongolia, including its capital Hohhot.
• *western third of:
• **Guangdong
• **Henan
• Most of central Mongolia including the capital Ulaanbaatar.
• In Russia, most of:
• *Irkutsk Oblast
• *Buryatia

  Areas between 82°30′ E and 97°30′ E ("physical" [UTC+06:00])

• Parts of China
• *most of Xinjiang Uyghur Autonomous Region. See also Time in China.
• *most of Tibet Autonomous Region
• Western Mongolia.

  Areas between 67°30′ E and 82°30′ E ("physical" [UTC+05:00])

• Parts of western China including western Xinjiang province.