Date Math / Tools / city_time

Time zone and local time for any city

Find the time zone and current local time in up to 10 cities by name ("Cebu", "São Paulo", "Springfield" + country). 7,000+ cities. Use for "what time is it in" questions and to get the IANA zone the other tools need.

MCP tool city_timeHTTP POST /v1/city25 free calls a day, then $0.001

Try it

Runs the real tool over MCP. Edit the arguments and run. Uses your daily free calls.

city_time

result

{
  "at": "2026-11-08T01:55:09.445Z",
  "results": [
    {
      "query": "Cebu",
      "found": true,
      "best": {
        "name": "Cebu",
        "country": "PH",
        "region": "Cebu",
        "timezone": "Asia/Manila",
        "population": 806817,
        "match": "exact",
        "local_time": "2026-11-08T09:55:09+08:00",
        "weekday": "Sunday",
        "utc_offset": "+08:00"
      },
      "alternatives": []
    }
  ]
}

The result shown before you run is a saved example response.

Use it from your agent

Add the MCP server once and your agent can call city_time and the other 19 tools.

Claude Code

One command in your terminal.

claude mcp add --transport http date-math https://date-math.datemath.workers.dev/mcp

Any MCP client

Claude Desktop, Cursor, VS Code, Windsurf.

{
  "mcpServers": {
    "date-math": {
      "url": "https://date-math.datemath.workers.dev/mcp"
    }
  }
}

HTTP + x402

POST JSON; pay the 402 with any x402 client.

curl -X POST https://date-math.datemath.workers.dev/v1/city \
  -H "Content-Type: application/json" \
  -d '{"cities":["Cebu","London","New York"]}'

Full schema: OpenAPI · llms.txt