Planetary Hours

POST

/planetary-hours

request.sh

curl -X POST https://api.astroway.info/v1/planetary-hours \
  -H "X-Api-Key: aw_live_..." \
  -H "Content-Type: application/json" \
  -d '{ "date": "2026-06-21", "latitude": 50.45, "longitude": 30.52, "timezoneOffset": 3, "atLocalHour": 15.2 }'

▸ Try it POST /planetary-hours

• Production

Chaldean planetary hours for a date and place: 12 from sunrise to sunset and 12 from sunset to sunrise, so an hour is rarely 60 minutes. startHour and endHour are decimal local hours. Send atLocalHour (decimal local time, e.g. 15.2 for 15:12) to have the hour containing it marked isCurrent; without it no hour carries the field, because the answer is cacheable and a flag from the server clock would be stale by the time it renders. sunTimes.polarState is normal, polar-day or polar-night, and in the two polar cases there is nothing to divide, so hours comes back empty with a warning saying why.

Authorizations

• ApiKeyAuth

Parameters

Query Parameters

fields

string

Comma-separated dotted paths, relative to data, to keep in the response. A path is applied to every element of an array, so planets.name means the name of each planet. Paths that match nothing come back in _fields_unmatched; a list where nothing matches at all is a 400, because an empty object would be a confident wrong answer.

Example

planets.name,planets.longitude

precision

integer

<= 15

Round every non-integer number in the response to this many decimal places. Integers are left alone, because an id is not a measurement. Ecliptic longitudes ship with fourteen decimals by default; 2 is about a tenth of an arcminute.

Example

4

Request Body ^required

Media type application/json

object

date required

string

/^\d{4}-\d{2}-\d{2}$/

latitude required

number

nullable

longitude required

number

nullable

timezoneOffset

Hours from UTC at the given moment, not minutes. Fractional zones are hours too: 5.5 for India, 5.75 for Nepal, -3.5 for Newfoundland. Defaults to 0, meaning UTC. Ignored when timezone is sent.

number

0 nullable >= -14 <= 14

timezone

IANA zone name such as Europe/Kyiv, or auto to look the zone up from latitude and longitude. The server takes the offset that zone kept at this local date and time, summer time included, and uses it in place of timezoneOffset. A clock time that happened twice takes the first occurrence; one skipped when clocks went forward takes the offset from before the change. Abbreviations such as EST are refused. Before 1970 the tz database is not reliable for every place, so send timezoneOffset when the local clock is known.

string

atLocalHour

Local time of day in decimal hours, e.g. 15.2 for 15:12. When sent, the hour containing it carries isCurrent: true and every other hour carries false. When omitted, no hour carries the field at all: it is not false, it is unasked.

number

<= 24

Example

{
  "date": "2026-06-21",
  "latitude": 50.45,
  "longitude": 30.52,
  "timezoneOffset": 3,
  "atLocalHour": 15.2
}

Responses

200

Successful calculation

Media type application/json

object

ok

boolean

data

object

date

string

nullable

latitude

number

nullable

longitude

number

nullable

timezone

number

nullable

sunTimes

object

riseJD

number

nullable

setJD

number

nullable

riseHour

number

nullable

setHour

number

nullable

polarState

string

nullable

dayRulerPlanetId

number

nullable

dayRulerPlanetName

string

nullable

dayOfWeek

number

nullable

hours

Array<object>

nullable

object

number

number

nullable

planetId

number

nullable

planetName

string

nullable

startHour

number

nullable

endHour

number

nullable

isDaytime

boolean

nullable

isCurrent

boolean

nullable

Example

{
  "ok": true,
  "data": {
    "date": "2026-06-21",
    "latitude": 50.45,
    "longitude": 30.52,
    "timezone": 3,
    "sunTimes": {
      "riseJD": 2461212.573777389,
      "setJD": 2461213.2591750845,
      "riseHour": 4.770657330751419,
      "setHour": 21.220202028751373,
      "polarState": "normal"
    },
    "dayRulerPlanetId": 0,
    "dayRulerPlanetName": "Sun",
    "dayOfWeek": 0,
    "hours": [
      {
        "number": 1,
        "planetId": 0,
        "planetName": "Sun",
        "startHour": 4.770657330751419,
        "endHour": 6.141452722251415,
        "isDaytime": true,
        "isCurrent": false
      },
      {
        "number": 8,
        "planetId": 0,
        "planetName": "Sun",
        "startHour": 14.366225071251392,
        "endHour": 15.737020462751389,
        "isDaytime": true,
        "isCurrent": true
      }
    ]
  }
}

400

Validation error

Media type application/json

Example

{
  "ok": false,
  "error": {
    "code": "INVALID_INPUT",
    "message": "Validation failed: date: Date must be YYYY-MM-DD",
    "details": [
      {
        "path": "date",
        "message": "Date must be YYYY-MM-DD"
      }
    ]
  }
}

401

Missing or invalid API key

Media type application/json

Example

{
  "ok": false,
  "error": {
    "code": "INVALID_API_KEY",
    "message": "Invalid API key"
  }
}