POST

Rahu Kalam

Calculate Rahu Kalam timings for a specific date and geographical location using traditional Hindu Panchang calculations. Identify this daily inauspicious period to support Muhurta selection, religious planning, and Vedic astrology applications.

/rahu-kalam

Method

POST

Format

JSON

Auth

API Key

Credits

Overview

The Rahu Kalam API calculates the start and end times of Rahu Kalam for a specific date and geographical location. In traditional Hindu astrology, Rahu Kalam is a daily period associated with Rahu and is generally considered inauspicious for beginning new ventures, important journeys, and significant activities.

The API returns the beginning and ending timestamps through the starts_at and ends_at fields. Since Rahu Kalam varies according to the weekday and local sunrise and sunset timings, location-specific calculations help developers display the appropriate period for each day.

This endpoint is useful for building Hindu Panchang applications, daily astrology dashboards, Muhurta planners, religious calendars, and Vedic astrology software. To calculate Rahu Kalam, provide the year, month, date, time, latitude, longitude, and timezone. You can also configure the observation point as geocentric or topocentric. The API returns the calculated timings in JSON format for easy integration into web applications and mobile apps.

Request Parameters

Parameter	Type	Required	Description	Example
`year`	integer	Yes	Year number, eg: 2023	2023
`month`	integer	Yes	Month number,with no leading zero	7
`date`	integer	Yes	Day number,with no leading zero	5
`hours`	integer	Yes	Hours number,with no leading zero	1
`minutes`	integer	Yes	Minutes number,with no leading zero	1
`seconds`	integer	Yes	Seconds number, with no leading zero	0
`latitude`	float	Yes	Latitude number, in the range from -90 to 90	12.86
`longitude`	float	Yes	Longitude number, in the range from -180 to 180	123.5
`timezone`	float	Yes	Timezone of birth location, eg: 5.5	5.5
📦 `config`	object	No	Contains optional configuration values
`ayanamsha`	string	No	Either "tropical" or "sayana" or "lahiri"	Either "tropical" or "sayana" or "lahiri"
`observation_point`	string	No	Geocentric positions are calculated with respect to the center of Earth. Topocentric positions are calculated with respect to the actual given place	Either "topocentric" or "geocentric"

Request Example

{
    "year": 2022,
    "month": 8,
    "date": 11,
    "hours": 6,
    "minutes": 0,
    "seconds": 0,
    "latitude": 17.38333,
    "longitude": 78.4666,
    "timezone": 5.5,
    "config": {
        "observation_point": "topocentric",
        "ayanamsha": "lahiri"
    }
}

Response Examples

Example responses returned by this API.

Response

{
    "statusCode": 200,
    "output": "{\"starts_at\": \"2025-08-11 07:14:35.750000\", \"ends_at\": \"2025-08-11 08:50:36.500000\"}"
}

Code Examples

Use the following examples to integrate this API into your application.

PHP Code

<?php

$curl = curl_init();

curl_setopt_array($curl, array(
  CURLOPT_URL => 'https://json.freeastrologyapi.com/rahu-kalam',
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => '',
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 0,
  CURLOPT_FOLLOWLOCATION => true,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => 'POST',
  CURLOPT_POSTFIELDS =>'{
    "year": 2025,
    "month": 8,
    "date": 11,
    "hours": 10,
    "minutes": 25,
    "seconds": 43,
    "latitude": 17.68009,
    "longitude": 83.20161,
    "timezone": 5.5,
    "config": {
        
        "observation_point": "geocentric",
        "ayanamsha": "lahiri"
    }
}',
  CURLOPT_HTTPHEADER => array(
    'Content-Type: application/json',
    'x-api-key: YOUR_API_KEY_HERE'
  ),
));

$response = curl_exec($curl);

curl_close($curl);
echo $response;

Python Code

import requests
import json

url = "https://json.freeastrologyapi.com/rahu-kalam"

payload = json.dumps({
  "year": 2025,
  "month": 8,
  "date": 11,
  "hours": 10,
  "minutes": 25,
  "seconds": 43,
  "latitude": 17.68009,
  "longitude": 83.20161,
  "timezone": 5.5,
  "config": {
    "observation_point": "geocentric",
    "ayanamsha": "lahiri"
  }
})
headers = {
  'Content-Type': 'application/json',
  'x-api-key': 'YOUR_API_KEY_HERE'
}

response = requests.request("POST", url, headers=headers, data=payload)

print(response.text)

Node JS Code

var request = require('request');
var options = {
  'method': 'POST',
  'url': 'https://json.freeastrologyapi.com/rahu-kalam',
  'headers': {
    'Content-Type': 'application/json',
    'x-api-key': 'YOUR_API_KEY_HERE'
  },
  body: JSON.stringify({
    "year": 2025,
    "month": 8,
    "date": 11,
    "hours": 10,
    "minutes": 25,
    "seconds": 43,
    "latitude": 17.68009,
    "longitude": 83.20161,
    "timezone": 5.5,
    "config": {
      "observation_point": "geocentric",
      "ayanamsha": "lahiri"
    }
  })

};
request(options, function (error, response) {
  if (error) throw new Error(error);
  console.log(response.body);
});