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: Tokyo, Osaka, Nagoya, Fukuoka, Yokohama, Sapporo, Hiroshima, Kyoto, Seoul, Busan, Daegu, Gwangju, Ulsan, Incheon, Pyeongyang, Yakutsk, Koror, Dili, Jayapura, Ambon

North Asia

East Asia

Oceania

Micronesia

Southeast Asia

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

Australia

Federated States of Micronesia

Papua New Guinea

Russia

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

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

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

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