# Astro Agents Time Resolve

> Astro Agents Time Resolve is a paid API for AI agents from astro-agent.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-10).

Resolves a civil or ambiguous date/time and location into precise UTC, Julian Day, Delta-T, and true solar time using NASA/JPL DE440 ephemeris

## Facts

- Endpoint: POST https://astro-agent.dev/v1/time/resolve?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-10
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/astro-agents-time-resolve-2ea1f00c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_h___AFvNBspqt6EIcfgn0

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 astro-agents-time-resolve-2ea1f00c -d '<json body>'
```

Example prompt: Can you resolve August 14, 1947 at 11:30 PM civil time in New Delhi (latitude 28.6139, longitude 77.2090, timezone Asia/Kolkata) to UTC and give me the Julian Day number and true solar time?

## When to prefer this

Choose this endpoint when you need astronomically precise, reproducible time resolution for astrological or astronomical calculations — especially when you require Julian Day UT, Delta-T correction, or true solar time. It is ideal for natal chart preparation, historical event timing, or any workflow requiring a verifiable SHA-256 hash of the time result. Prefer it over generic timezone converters when NASA/JPL DE440 ephemeris accuracy and deterministic outputs are required.

## Known failure modes

- Missing required body fields (date, time, or datetime) returns a validation error
- Latitude or longitude out of range (-90 to 90 / -180 to 180) returns a schema validation error
- Invalid or unrecognized timezone string causes a resolution failure
- Date outside ephemeris range (1800-01-01 to 2200-01-01) may return an out-of-range error
- Ambiguous DST transition times handled by ambiguous_time enum (earlier/later); wrong selection may produce unexpected UTC offset
- Payment failure via x402 protocol results in 402 status and no computation

## How this service works

Birth time resolver: Local birth time + place -> exact UT, historical UTC offset, Delta T, Local Mean Time, true solar time.

## Output

Returns a JSON object containing: resolved UTC datetime, timezone name and UTC offset, Julian Day UT (high-precision float), Delta-T in seconds, true solar time, plus engine metadata (ephemeris version, llm_used=false, deterministic=true) and a SHA-256 hash of the result for reproducibility verification.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "type": "object",
     "required": [],
     "properties": {
      "date": {
       "type": "string"
      },
      "time": {
       "type": "string"
      },
      "datetime": {
       "type": "string"
      },
      "latitude": {
       "type": "number",
       "maximum": 90,
       "minimum": -90
      },
      "timezone": {
       "type": "string"
      },
      "longitude": {
       "type": "number",
       "maximum": 180,
       "minimum": -180
      },
      "time_basis": {
       "enum": [
        "civil",
        "utc",
        "lmt",
        "true_solar"
       ],
       "type": "string",
       "default": "civil"
      },
      "ambiguous_time": {
       "enum": [
        "earlier",
        "later"
       ],
       "type": "string",
       "default": "earlier"
      }
     }
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST",
      "PUT",
      "PATCH"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "meta": {
   "engine": "astro-agents/1.0.3",
   "llm_used": false,
   "ephemeris": "NASA/JPL DE440 (1800-01-01..2200-01-01)",
   "deterministic": true,
   "result_sha256": "c44090a343c5399be2ecb9728396283b91a07114611f8cd4db69d21da16fe618"
  },
  "endpoint": "time/resolve",
  "result_excerpt": {
   "time": {
    "utc": "1947-08-14T18:30:00Z",
    "timezone": "Asia/Kolkata",
    "utc_offset": "+05:30",
    "julian_day_ut": 2432412.270996,
    "delta_t_seconds": 28.109,
    "true_solar_time": "1947-08-14T23:34:10"
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/astro-agents-time-resolve-2ea1f00c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from astro-agent.dev](https://www.zero.xyz/host/astro-agent.dev/llms.txt)