{"uid":"cap_KB_X0GXlhO0fy9pIgMdKU","slug":"boring-api-geo-timezone-lookup-by-coordinates-40a5c141","name":"boring-api geo · Timezone Lookup by Coordinates","description":"Pure-library spatial math and timezone lookup. Distance, bearing, polygons, point-in-polygon, timezone-by-coords. No external API calls — all computed in-Worker.","url":"https://geo.boring-api.com/timezone","method":"GET","headers":{},"bodySchema":null,"responseSchema":{"type":"object"},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.0005","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.0005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.0005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_0uyjxHaHyjGKXRA-_U87g","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.0005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the timezone identifier for a given latitude/longitude coordinate pair, computed entirely in-Worker with no external API calls.","exampleAgentPrompt":"What timezone is the coordinate 48.8566° N, 2.3522° E in? Just give me the IANA timezone name computed without hitting any external service.","exampleUseCases":[{"title":"Timezone for GPS coordinates","prompt":"I have a GPS location at 35.6762° N, 139.6503° E — what IANA timezone does that fall in? Don't call any external APIs, just compute it directly."},{"title":"Schedule meetings across locations","prompt":"I'm setting up a meeting and I have the lat/lon of each attendee's office. Can you look up the timezone for 51.5074° N, 0.1278° W so I can figure out what local time works for everyone?"},{"title":"Log timestamp for field sensor","prompt":"One of our field sensors just reported a reading from coordinates 34.0522° N, 118.2437° W. What timezone is that location in so I can convert the UTC timestamp to local time?"}],"resultDescription":"A JSON object containing the IANA timezone identifier (e.g. 'America/New_York') for the supplied coordinates, derived purely from in-Worker spatial computation with no third-party API dependency.","failureModes":["Missing or invalid latitude/longitude parameters returns an error","Coordinates outside valid range (-90 to 90 lat, -180 to 180 lon) may return an error or null result","Payment not included or insufficient USDC results in 402 response","Ambiguous coordinates on timezone boundary may resolve to one of multiple valid timezones"],"whenToPreferThis":"Prefer this endpoint when you need a fast, self-contained timezone lookup from coordinates without relying on external geocoding or timezone APIs. Ideal for privacy-sensitive workflows, offline-style architectures, or when you want deterministic in-Worker computation. Useful when Google Maps or similar paid third-party timezone APIs are overkill or unavailable.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-16T00:44:32.150Z","isFirstParty":false}