WebUS$ 323 billion. Time zone. UTC+09:00 ( JST) The Tōhoku region (東北地方, Tōhoku-chihō, IPA: [toːhokɯ̥ tɕiꜜhoː]), Northeast region, Ōu region (奥羽地方, Ōu-chihō), or Northeast Japan (東北日本, Tōhoku Nihon) consists of the northeastern portion of Honshu, the largest island of Japan. This traditional region consists of ...