POST

Aayanam

Calculate the traditional Hindu Aayanam (solar half-year) for a specific date, time, and geographical location. Identify Uttarayanam or Dakshinayanam for Panchang applications, Hindu calendars, and Vedic astrology software.

/aayanam

Method

POST

Format

JSON

Auth

API Key

Credits

Overview

The Aayanam API identifies the traditional Hindu solar half-year (Aayanam) for a given date, time, and geographical location. In the Hindu calendar, the year is divided into two major solar periods: Uttarayanam and Dakshinayanam, which are associated with the Sun's apparent northward and southward movement, respectively.

The API returns the Aayanam name, identifying whether the specified date and time falls under Uttarayanam or Dakshinayanam. This information is useful for displaying traditional solar periods in Hindu Panchang applications, religious calendars, festival planners, and Vedic astrology software.

To calculate Aayanam, 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 result in JSON format, making it easy to integrate traditional Aayanam information into web applications, mobile apps, and astrology platforms.

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": "{\"aayanam\": \"Uttarayanam\"}"
}

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/aayanam',
  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": 2024,
    "month": 5,
    "date": 3,
    "hours": 12,
    "minutes": 10,
    "seconds": 53,
    "latitude": 1.4433887,
    "longitude": 103.8325013,
    "timezone":8,
    "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/aayanam"

payload = json.dumps({
  "year": 2024,
  "month": 5,
  "date": 3,
  "hours": 12,
  "minutes": 10,
  "seconds": 53,
  "latitude": 1.4433887,
  "longitude": 103.8325013,
  "timezone": 8,
  "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/aayanam',
  'headers': {
    'Content-Type': 'application/json',
    'x-api-key': 'YOUR_API_KEY_HERE'
  },
  body: JSON.stringify({
    "year": 2024,
    "month": 5,
    "date": 3,
    "hours": 12,
    "minutes": 10,
    "seconds": 53,
    "latitude": 1.4433887,
    "longitude": 103.8325013,
    "timezone": 8,
    "config": {
      "observation_point": "geocentric",
      "ayanamsha": "lahiri"
    }
  })

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