# UTC+09:00

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