UTC+10:00

Principal cities: Vladivostok, Khabarovsk, Saipan, Dededo, Port Moresby, Brisbane, Gold Coast

North Asia

• Russia, Vladivostok Time
  • Far Eastern Federal District
    • Jewish Autonomous Oblast, Khabarovsk Krai, Primorsky Krai, Sakha Republic, Oymyakonsky, Ust-Yansky, Verkhoyansky and districts of the Sakha Republic (central part; east of 140 degrees longitude and including the Abyysky, Allaikhovsky, Momsky, Nizhnekolymsky, and Srednekolymsky districts)

Oceania

Pacific Ocean

Micronesia

• Federated States of Micronesia
  • Chuuk
  • Yap
• United States - Chamorro Time Zone -- this is the only U.S. time zone with a plus (ahead of London)
  • Guam
  • Northern Mariana Islands

Melanesia

• Papua New Guinea
  • All of the country except Autonomous Region of Bougainville
    • Highlands Region
      • Chimbu
      • Eastern Highlands
      • Enga
      • Hela
      • Jiwaka
      • Southern Highlands
      • Western Highlands
    • Islands Region
      • East New Britain
      • Manus
      • New Ireland
      • West New Britain
    • Momase Region
      • East Sepik
      • Madang
      • Morobe
      • Sandaun (West Sepik)
    • Southern Region
      • Central
      • Gulf
      • Milne Bay
      • Oro (Northern)
      • Western

Australia

• Australia, Eastern Standard Time (AEST)
  • Queensland

Antarctica

Southern Ocean

• Some bases in Antarctica. See also Time in Antarctica.
• Australia
  • Australian Antarctic Territory
    • Macquarie Island
• France
  • French Southern and Antarctic Lands
    • Adélie Land
      • Dumont d'Urville Station

Principal cities: Canberra, Sydney, Melbourne, Hobart

Oceania

• Australia, Eastern Standard Time (AEST)
  • Australian Capital Territory
  • Jervis Bay Territory
  • New South Wales (except Broken Hill and its surrounds, as well as Lord Howe Island)
  • Tasmania
  • Victoria

Areas in UTC+10:00 longitudes using other time zones

Using UTC+09:00:

• 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 small part of Kotelny Island
    • The eastern part of Great Lyakhovsky Island

Using UTC+11:00:

• Russia
  • Sakhalin Oblast (eastern part of Sakhalin Island and Russian territory of Kuril Islands)
  • The most part of Magadan Oblast
  • Sakha Republic (eastern part; Oymyakonsky, Ust-Yansky, and Verkhoyansky districts)
• Micronesia
  • The western part of Pohnpei
• Papua New Guinea
  • Autonomous Region of Bougainville, except island in very east
• Solomon Islands
  • Shortland Islands
  • Choiseul, with an exception in very east
  • The western part of New Georgia Islands

Areas outside UTC+10:00 longitudes using UTC+10:00 time

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

• Russia
  • Central part of Sakha Republic
  • Most of Khabarovsk Krai
  • Jewish Autonomous Oblast
  • Primorsky Krai
• Papua New Guinea
  • The very westernmost parts in the country
• Australia
  • The western parts of Queensland
  • The westernmost parts of New South Wales and Victoria, except Broken Hill (standard time)