POST

Tithi information

Calculate the current Hindu lunar day (Tithi) using date, time, and geographical coordinates. Get the Tithi name, number, Paksha, completion time, and remaining percentage for your Vedic astrology and Panchang applications.

/tithi-durations

Method

POST

Format

JSON

Auth

API Key

Credits

Overview

The Tithi Durations API calculates the Hindu lunar day (Tithi) at a given date, time, and geographical location based on the relative positions of the Sun and Moon. It helps developers determine which Tithi is active at a specific moment according to the Hindu lunar calendar.

The API returns the Tithi number, name, Paksha (Shukla or Krishna), completion time, and the percentage of the Tithi remaining. This information can be used to display daily Panchang details, identify lunar days, build Hindu festival calendars, support religious event planning, and develop Vedic astrology applications.

To retrieve Tithi information, provide the date and time, latitude, longitude, and timezone. Optional configuration settings allow you to specify the observation point (geocentric or topocentric) and Ayanamsha settings supported by the API. The result is returned in JSON format for easy integration into web applications, mobile apps, and astrology software.

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": "\"{\\\"number\\\": 17, \\\"name\\\": \\\"Dwitiya\\\", \\\"paksha\\\": \\\"krishna\\\", \\\"completes_at\\\": \\\"2025-08-11 10:33:55\\\", \\\"left_precentage\\\": 0.62}\""
}

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/tithi-durations',
  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/tithi-durations"

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/tithi-durations',
  '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);
});