150th meridian west
line of longitude which forms a great circle with the 30th meridian east
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 ellipse 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.
“150th meridian west” enters the record as line of longitude which forms a great circle with the 30th meridian east. Crown Archives preserves that source wording while asking what 150th, meridian and west can confirm, complicate or overturn.
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The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Jun 30, 2025. The linked authority identifier is Q2697791. Authority coordinates are 0.000, -150.000. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank.
The absence of detail may reflect summary conventions rather than a lack of surviving documentation. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
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This entry incorporates text from “150th meridian west” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.