# chrono-format

`station__temporal__chrono-format` · external (needs EXECUTION_BACKEND_URL configured) · domain `temporal` · pv-relevance `non-pv`

Supported specifiers: `%Y`, `%m`, `%d`, `%H`, `%M`, `%S`, `%F`, `%T`, `%%`.

> **Note:** This tool routes through an external execution backend. If `EXECUTION_BACKEND_URL` is unset on the server, calls return JSON-RPC error `-32603 "Tool execution backend not configured"`. Tools with `backend: native` execute in-process and are always callable.

## Agent metadata

- `idempotent`: unknown
- `read_only`: unknown
- `expected_latency_ms`: unknown (not yet contract-tested)
- `cost_tokens_estimate`: unknown

## Input schema

- `format` *string* (required) — strftime format string. Supported specifiers: `%Y` (year), `%m` (month), `%d` (day), `%H` (hour), `%M` (minute), `%S` (second), `%F` (YYYY-MM-DD), `%T` (HH:MM:SS), `%%` (literal %).
- `timestamp` *integer* — Unix timestamp in seconds. Defaults to the current UTC time when omitted.

## Example call

```json
POST /api/mcp
Content-Type: application/json

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "station__temporal__chrono-format",
    "arguments": {
      "format": ""
    }
  }
}
```

## Related

- [/tools](/tools) — all 3062 tools
- [/tools/temporal__chrono-format](/tools/temporal__chrono-format) — HTML page
- [/tools/temporal__chrono-format/json](/tools/temporal__chrono-format/json) — JSON form (agent-friendly)
- [/api/mcp](/api/mcp) — endpoint
- [/AGENTS.md](/AGENTS.md) — agent guide