/v1/panchang/pradosh-kaal

Pradosh Kaal interval.

What this tells you

Pradosh Kaal is the twilight period around sunset, sacred to Shiva. The API returns a fixed 72-minute window (3 ghatis) centred on sunset: from 36 minutes before to 36 minutes after the first sunset on `date`. When Trayodashi (the 13th tithi) runs during Pradosh Kaal, the day is observed as Pradosh Vrat.

`*_jd` values are Julian Days in UT. `*_local` strings are local wall-clock time in the request `tz`, formatted "YYYY-MM-DD HH:MM:SS" with no offset. The `time` parameter does not change the result. If the Sun does not set on `date` (polar day or night) the API returns 422 `data_unavailable`.

Request

All requests require an Authorization header with your dv_live_* API key.

example request

curl "https://api.lifeastroapi.com/v1/panchang/pradosh-kaal?date=2027-01-15&tz=Asia%2FKolkata&lat=28.6139&lon=77.209" \
  -H "Authorization: Bearer YOUR_API_KEY"

Query parameters

Checked against the API: a parameter is marked required when the request fails without it.

Name	Required	Example	Description
`date`	yes	`2027-01-15`	Date (YYYY-MM-DD).
`tz`	yes	`Asia/Kolkata`	Timezone: IANA name (Asia/Kolkata) or UTC offset (+05:30).
`lat`	yes	`28.6139`	Latitude in decimal degrees.
`lon`	yes	`77.209`	Longitude in decimal degrees.

Response (200 OK)

The real response to the example request above, generated from the API itself. Long arrays are trimmed to their first two items. Field names are stable across versions.

200 response

{
  "date": "2027-01-15",
  "location": {
    "lat": 28.6139,
    "lon": 77.209,
    "alt": 0
  },
  "tz": "Asia/Kolkata",
  "window": {
    "start_jd": 2461420.986285,
    "end_jd": 2461421.036285,
    "start_local": "2027-01-15 17:10:15",
    "end_local": "2027-01-15 18:22:15"
  }
}

Field reference

Every field in the response, with its type, a real example, and what it means.

Field	Type	Meaning
date	string	Echo of the `date` parameter (local date). example: `"2027-01-15"`
location	object	Echo of `lat`, `lon` and `alt` (metres, default 0). example: `{ "lat": 28.6139, "lon": 77.209, "alt": 0 }`
tz	string	Echo of the `tz` parameter. The `*_local` times are in this zone. example: `"Asia/Kolkata"`
window.start_jd	number	Start of Pradosh Kaal, as a Julian Day in UT (36 minutes before sunset). example: `2461420.986285`
window.end_jd	number	End of Pradosh Kaal, as a Julian Day in UT (36 minutes after sunset). example: `2461421.036285`
window.start_local	string (YYYY-MM-DD HH:MM:SS)	Start in local time (request `tz`), with no offset suffix. example: `"2027-01-15 17:10:15"`
window.end_local	string (YYYY-MM-DD HH:MM:SS)	End in local time (request `tz`), with no offset suffix. example: `"2027-01-15 18:22:15"`

Usage tips

How to use it

Finding Pradosh Vrat days
This endpoint does not say whether the day is a Pradosh Vrat. To list them, call /v1/festivals/vrat with `type=pradosh`, `year`, `lat`, `lon` and `tz`. That endpoint picks the day with its own window (sunset to 96 minutes after sunset), so its times differ from this one.
Duration is fixed
The window is always 72 minutes long. There is no duration field.

Errors

Every error follows the same envelope. Use the error.code field (not the message) for conditional logic in your integration.

401 Unauthorized

{
  "error": {
    "code": "unauthorized",
    "message": "missing or invalid API key",
    "request_id": "req_01hqy7k8c3e7m1n"
  }
}

402 Payment Required

{
  "error": {
    "code": "trial_exhausted",
    "message": "your free trial credits are exhausted — pick a plan to continue",
    "top_up_url": "https://lifeastroapi.com/pricing",
    "request_id": "req_01hqy7k8c3e7m1n"
  }
}

429 Too Many Requests

{
  "error": {
    "code": "rate_limited",
    "message": "rate limit exceeded; retry after 12 seconds",
    "request_id": "req_01hqy7k8c3e7m1n"
  }
}

Try it

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