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US Naval Observatory Astronomy Times
x402
US Naval Observatory Astronomy Times is a paid API for AI agents from time.memoryapi.org, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).
Returns sunrise, sunset, twilight, moonrise, and moonset times for any geographic location, sourced from the US Naval Observatory.
Price / call$0.001
Success—
StatusUnknown
How this service works
Time, astronomy, and moon phase data via x402 micropayments. Powered by TimeAPI.io and US Naval Observatory.
Output
Returns sunrise, sunset, and twilight times along with moonrise and moonset times for the specified location and date, sourced from US Naval Observatory calculations.
Example use cases
Example prompt
“What time does the sun rise and set, and when does the moon rise and set, in Denver, Colorado on July 4th?”
Technical details
Endpoint
GEThttps://time.memoryapi.org/x402/time/astronomyWhen to prefer
Use this endpoint when you need precise, authoritative sunrise, sunset, twilight, moonrise, or moonset times for any global location on a specific date. Prefer this over generic weather APIs when authoritative USNO-sourced astronomical timing data is required for photography planning, outdoor scheduling, navigation, or scientific purposes.
Side effects
- Invalid or missing location coordinates return an error
- Unsupported date ranges may return no data
- Network timeout or service unavailability returns a 5xx error
- Malformed request parameters return a 4xx validation error
Input
{
"tz": -6,
"lat": 39.7392,
"lon": -104.9903,
"date": "2024-07-04"
}Output
{
"sun": {
"set": "20:31",
"rise": "05:38",
"transit": "13:05",
"civil_twilight_end": "21:03",
"civil_twilight_begin": "05:05"
},
"date": "2024-07-04",
"moon": {
"set": "20:05",
"rise": "03:56"
},
"source": "US Naval Observatory",
"success": true,
"location": {
"lat": 39.7392,
"lon": -104.9903
},
"timezone_offset": -6
}Schema · Response
{
"example": {
"sun": {
"set": "20:01",
"rise": "05:55",
"transit": "12:58",
"civil_twilight_end": "20:28",
"civil_twilight_begin": "05:28"
},
"date": "2025-05-29",
"moon": {
"set": "14:47",
"rise": "03:12"
},
"source": "US Naval Observatory",
"success": true,
"location": {
"lat": 40.7128,
"lon": -74.006
}
}
}Tags
x402
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