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UTC+09:00
Time zone
World map with the time zone highlighted
UTC offset
UTC	UTC+09:00
Current time
10:16, 31 January 2025 UTC+09:00
Central meridian
135 degrees E
Date-time group
I

Time in Indonesia

Map of time zones of Indonesia
Western Indonesia Time UTC offset	UTC+07:00
Central Indonesia Time UTC offset	UTC+08:00
Eastern Indonesia Time UTC offset	UTC+09:00
Adopted	1 January 1988
Time notation	24-hour clock
tz database	Asia/Jakarta · Asia/Pontianak · Asia/Makassar · Asia/Jayapura

UTC+09:00 is an identifier for a time offset from UTC of +09:00.

During the Japanese occupations of British Borneo, Burma, Hong Kong, Dutch East Indies, Malaya, Philippines, Singapore, and French Indochina, it was used as a common time with Tokyo until the fall of the Empire of Japan.

As standard time (year-round)

Principal cities: Yakutsk, Blagoveshchensk, Chita, Tokyo, Osaka, Nagoya, Fukuoka, Yokohama, Sapporo, Hiroshima, Kyoto, Seoul, Busan, Daegu, Gwangju, Ulsan, Incheon, Jeju, Changwon, Pyongyang, Koror, Jayapura, Sorong, Ternate, Ambon, Dili.

North Asia

• Russia – Yakutsk Time
  • Far Eastern Federal District
    • Amur Oblast, Sakha Republic (western part; west of the Lena River as well as territories adjacent to the Lena on the eastern side)
    • Zabaykalsky Krai

East Asia

• Japan – Japan Standard Time
• North Korea – Korea Standard Time
• South Korea – Korea Standard Time

Oceania

Micronesia

• Palau – Time in Palau

Australia

• Arubiddy Station, Western Australia – Arubiddy Time

Southeast Asia

• Indonesia – Eastern Indonesia Time
  • Eastern zone, including:
    • Maluku Islands
      • Maluku
      • North Maluku
    • Western New Guinea
      • Papua
      • West Papua
      • Central Papua
      • South Papua
      • Southwest Papua
      • Highland Papua
• East Timor – Time in East Timor

Discrepancies between official UTC+09:00 and geographical UTC+09:00

Areas in UTC+09:00 longitudes using other time zones

This concerns areas within 127°30′ E and 142°30′ E longitude.

China

• Parts of Northeast China, including eastern half of Heilongjiang Province and Yanbian Korean Autonomous Prefecture in Jilin Province, where UTC+08:00 is used.

Australia

• The easternmost parts of Western Australia where UTC+08:00 is used, Eucla and nearby areas where (unofficial) UTC+08:45 is used.
• The Northern Territory, where UTC+09:30 is used, and South Australia and Broken Hill where UTC+09:30 and DST UTC+10:30 are used, respectively, despite the borders of the territory and state fitting perfectly within the ideal meridians of UTC+09:00.
• The western parts of Queensland where UTC+10:00 is used, and westernmost parts of Victoria and New South Wales where UTC+10:00 and UTC+11:00 in summer time, is used.

Federated States of Micronesia

• Parts of Federated States of Micronesia, including western parts of Yap State, where UTC+10:00 is used.

Papua New Guinea

• The very westernmost parts of Papua New Guinea, where UTC+10:00 is used.

Russia

• Parts of Russia, including Jewish Autonomous Oblast, Primorsky Krai, central part of Sakha, and most of Khabarovsk Krai where UTC+10:00 is used, and westernmost parts of eastern Sakha Republic and Sakhalin Island, where UTC+11:00 is used.

Areas outside UTC+09:00 longitudes using UTC+09:00 time

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

• Russia
  • A westernmost part of Sakha Republic, including the urban localities Aykhal and Udachny

Areas between 112°30′ E and 127°30′ E ("physical" UTC+08:00)

• Russia
  • Zabaykalsky Krai
  • Most of western Sakha Republic
• East Timor
• Indonesia
  • The western islands in the provinces of Maluku and North Maluku (from south to north):
    • Liran Island
    • Wetar Island
    • Kisar Island
    • Ambelau Island
    • Buru Island
    • Sanana Island
    • Mangole Island
    • Taliabu and surrounding islands
• Japan
  • Parts of Okinawa Prefecture:
    • Sakishima Islands
      • Yaeyama Islands
      • Miyako Islands
    • Okinawa Islands
      • Kume Island
      • Aguni Islands
      • The western parts of Kerama Islands
• North Korea
  • The western parts of Korea, including the capital city, Pyongyang
• South Korea
  • The western parts of Korea, including the capital city, Seoul
• Australia
  • Arubiddy Station

Areas between 142°30′ E and 157°30′ E ("physical" UTC+10:00)

• Japan
  • The eastern parts of Hokkaido, including Obihiro, Kushiro, and Nemuro
  • Minami-Tori-shima in Ogasawara municipality
• Russia
  • New Siberian Islands
    • Novaya Sibir
    • Faddeyevsky Island
    • A smaller part of Kotelny Island
    • The eastern part of Great Lyakhovsky Island

See also

• Time in Russia
• Time in North Korea
• Time in South Korea
• Time in Indonesia

References

1. "Russia Time Zones - Russia Current Times". TimeTemperature.com. Retrieved 14 July 2012.
2. "Sakha – Western, Russia Time Zone". TimeTemperature.com. Retrieved 25 March 2018.
3. Goerling, Samantha; Collins, Andrew (30 March 2024). "Central Western Time, affectionately known as 'Eucla time', is WA's lesser-known second time zone". ABC Great Southern. To simplify the matter, Arubbidy Station — located between Balladonia and Eucla — operates off its own time, distinct to Eucla time, according to owner Matthew Lewis. "If you go through Caiguna, says move your clocks back 45 minutes. We say we're not that smart really so we just go with one hour, so we're one hour on from WA," he said.
4. "Indonesia Time Zones – Indonesia Current Time". TimeTemperature.com. Retrieved 27 October 2012.
5. Gwlliam Law. "Provinces of Indonesia". Statoids. Retrieved 27 October 2012.

External links

• [REDACTED] Media related to UTC+09:00 at Wikimedia Commons

• UTC offsets
• Time in Japan
• Time in South Korea
• Time in Indonesia
• Time in Southeast Asia