# IANA Timezone Identifier Lookup

> IANA Timezone Identifier Lookup is a paid API for AI agents from api.agishub.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).

Lists or searches valid IANA timezone identifiers by city, region, or country name, resolving human-readable place names to their canonical timezone strings.

## Facts

- Endpoint: GET https://api.agishub.com/v1/timezones
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/iana-timezone-identifier-lookup-cc0bd2eb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_RMLhZLNxSbs90-RwB2AC0

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability iana-timezone-identifier-lookup-cc0bd2eb
```

Example prompt: What's the correct IANA timezone identifier for Johannesburg, South Africa? I need the exact string to use in a scheduling tool.

## When to prefer this

Use this endpoint when you need to discover or validate the correct IANA timezone identifier for a city, region, or country before passing it to a timezone conversion or date arithmetic tool. Prefer it over guessing timezone strings, as incorrect identifiers will cause silent errors in downstream time calculations.

## Known failure modes

- No matching timezone found for the query — returns empty list
- Query too broad returns an unmanageably large list
- Misspelled city/country name returns no results
- Non-ASCII characters in query may not match expected results

## How this service works

List or search valid IANA timezone identifiers by city/region/country, and resolve a city/country name to its timezone(s). Use it to discover the exact identifier to pass to the other tools.

## Output

Returns a list of IANA-standard timezone identifier strings (e.g. 'America/New_York', 'Asia/Tokyo') matching the query. Each result is a valid timezone ID ready to be passed to date/time conversion or scheduling tools.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input",
  "output"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method",
    "queryParams"
   ],
   "properties": {
    "type": {
     "enum": [
      "http"
     ],
     "type": "string"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "query": {
       "type": "string",
       "description": "Case-insensitive substring filter."
      }
     },
     "additionalProperties": false
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type",
    "example"
   ],
   "properties": {
    "type": {
     "enum": [
      "json"
     ],
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   },
   "additionalProperties": false
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "result": "List or search valid IANA timezone identifiers by city/region/country, and resolve a city/country name to its timezone(s"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/iana-timezone-identifier-lookup-cc0bd2eb/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.agishub.com](https://www.zero.xyz/host/api.agishub.com/llms.txt)