Map a US ZIP code to its IANA timezone
5-digit US ZIP (or ZIP+4 with or without dash) → IANA timezone + current UTC offset + DST flag. Centroid-based: each ZIP resolves to the tz polygon containing its Geonames centroid. Accepts short forms with lost leading zeros ('1001' → '01001') for ZIPs that round-trip through integer columns. Returns is_valid=False with why_invalid for unknown or malformed input.
Request
- Base URL: https://api.snipget.ai (the document declares no server; this is the origin it was published from)
- URL: https://api.snipget.ai/v1/timezones/lookup-by-zip
- Auth: none declared
Query parameters
Set true to attach an execution receipt at meta.receipt — caller-verifiable sha256 hashes over the RFC 8785 (JCS) canonicalization of this call's as-received JSON body and its result (free, like include_trace). Reproduce with any JCS library: input_hash = sha256(jcs({"tool": <request path>, "args": <your body minus include_trace/include_receipt>})); result_hash = sha256(jcs(result)). For deterministic tools, same input on the same build reproduces result_hash.
Headers
Request body
Response
Successful Response
Changes
No recorded changes to this operation across all 1 revision of this API.