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150°
150th meridian west
The meridian 150° west of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, North America (entirely within the State of Alaska), the Pacific Ocean, the Southern Ocean, and Antarctica to the South Pole.
In Antarctica, the meridian defines the eastern limit of New Zealand's territorial claim. The land further east is not claimed by any nation except the micronation of Westarctica, which is not recognized by any UN member state.
The 150th meridian west forms a great circle with the 30th meridian east.
The Hawaii–Aleutian Time Zone and Line Islands Time Zone is based on the mean solar time of this meridian.