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POST/api/astro/assamese_calendar/1 credit

Assamese calendar

The Assamese year for a given Gregorian year: the Bihus, the Sankrantis, the eclipses and the pan-Indian festivals as Assam observes them, each resolved to the civil date on which it is actually kept at the place you give. The Assamese calendar is solar, counted in the Bhaskarabda era and beginning with Bohag at the Sun's entry into Aries. The solar events (the Sankrantis, Bohag, Magh and Kati Bihu, Uruka) and the year's eclipses are computed fresh for your coordinates; the lunar festivals largely share their tithis with the Bengali set and are resolved to the right day using the time of day each observance requires — which is why Kali Puja and Dipabali, one and the same Amavasya, need not land together. Send `year` with `latitude`, `longitude` and `timezone_as_float`; the place matters because sunrise decides which civil day a tithi is kept on. The response is `{year, events}` where events is a list of `{name, date}` in date order, `date` being a plain YYYY-MM-DD local civil date.

https://yogataraapi.prahlad.app/api/astro/assamese_calendar/
Test Request

Authentication

Send your key in the X-API-Key header. Keys are server-side credentials — never put one in browser JavaScript or a mobile app.

X-API-Key: yt_live_a1b2c3d4_…
Content-Type: application/json

Request fields

FieldTypeRequiredNotes
latitudenumber (double)required

Latitude of the place, in decimal degrees. Positive is north, negative is south. Example: 26.9124 for Jaipur, 40.7128 for New York. Minutes and seconds are not accepted - convert first.

longitudenumber (double)required

Longitude of the place, in decimal degrees. Positive is east, negative is west. Example: 75.7873 for Jaipur, -74.0060 for New York. Note the sign: a missing minus puts New York in China.

timezone_as_floatnumber (double)required

UTC offset of the place, in hours, as a decimal. Example: 5.5 for India (UTC+05:30), -5 for New York in winter, 5.75 for Nepal. This is NOT validated against date_time - if the two disagree you get a successful response for the wrong moment, so derive both from the same source. Use the offset in force on that date, not today's: a summer birth in a country with daylight saving needs the summer offset.

yearintegerrequired

Year of birth as a number, e.g. 1990. Four digits.

min 2006 · max 2046

Example request

curl -X POST https://yogataraapi.prahlad.app/api/astro/assamese_calendar/ \
  -H "X-API-Key: $OCCULT_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"latitude":26.9124,"longitude":75.7873,"timezone_as_float":5.5,"year":2026}'

Response

{
  "data": {
    "year": 2026,
    "events": [
      {
        "name": "Makara Sankranti",
        "date": "2026-01-14"
      },
      {
        "name": "Uruka",
        "date": "2026-01-14"
      },
      {
        "name": "Magh Bihu",
        "date": "2026-01-15"
      },
      {
        "name": "Saraswati Puja",
        "date": "2026-01-23"
      },
      {
        "name": "Me-Dam-Me-Phi",
        "date": "2026-01-31"
      },
      {
        "name": "Kumbha Sankranti",
        "date": "2026-02-13"
      },
      {
        "name": "Maha Shivaratri",
        "date": "2026-02-15"
      },
      {
        "name": "Surya Grahan *Valayakara",
        "date": "2026-02-17"
      },
      {
        "name": "Ali-Aye-Ligang",
        "date": "2026-02-18"
      },
      {
        "name": "Chandra Grahan *Purna",
        "date": "2026-03-03"
      },
      {
        "name": "Dol Purnima",
        "date": "2026-03-03"
      },
      {
        "name": "Meena Sankranti",
        "date": "2026-03-15"
      },
      {
        "name": "Rama Navami",
        "date": "2026-03-26"
      },
      {
        "name": "Mesha Sankranti",
        "date": "2026-04-14"
      },
      {
        "name": "Solar New Year",
        "date": "2026-04-14"
      },
      {
        "name": "Bohag Bihu",
        "date": "2026-04-15"
      },
      {
        "name": "Pohela Boishakha",
        "date": "2026-04-15"
      },
      {
        "name": "Akshaya Tritiya",
        "date": "2026-04-19"
      },
      {
        "name": "Buddha Purnima",
        "date": "2026-05-01"
      },
      {
        "name": "Rabindranath Tagore Jayanti",
        "date": "2026-05-09"
      },
      {
        "name": "Vrishabha Sankranti",
        "date": "2026-05-15"
      },
      {
        "name": "Ganga Puja",
        "date": "2026-05-25"
      },
      {
        "name": "Mithuna Sankranti",
        "date": "2026-06-15"
      },
      {
        "name": "Jamai Shashti",
        "date": "2026-06-20"
      },
      {
        "name": "Ambubachi Mela",
        "date": "2026-06-22"
      },
      {
        "name": "Ambubachi Mela Ends",
        "date": "2026-06-25"
      },
      {
        "name": "Karka Sankranti",
        "date": "2026-07-16"
      },
      {
        "name": "Ratha Jatra",
        "date": "2026-07-16"
      },
      {
        "name": "Guru Purnima",
        "date": "2026-07-29"
      },
      {
        "name": "Surya Grahan *Purna",
        "date": "2026-08-12"
      },
      {
        "name": "Simha Sankranti",
        "date": "2026-08-17"
      },
      {
        "name": "Chandra Grahan *Anshika",
        "date": "2026-08-28"
      },
      {
        "name": "Rakhi Bandhan",
        "date": "2026-08-28"
      },
      {
        "name": "Nag Panchami",
        "date": "2026-09-01"
      },
      {
        "name": "Krishna Janmashtami",
        "date": "2026-09-04"
      },
      {
        "name": "Ganesh Chaturthi",
        "date": "2026-09-14"
      },
      {
        "name": "Kanya Sankranti",
        "date": "2026-09-17"
      },
      {
        "name": "Vishwakarma Puja",
        "date": "2026-09-17"
      },
      {
        "name": "Mahalaya",
        "date": "2026-10-10"
      },
      {
        "name": "Kalparambha",
        "date": "2026-10-16"
      },
      {
        "name": "Akal Bodhon",
        "date": "2026-10-16"
      },
      {
        "name": "Tula Sankranti",
        "date": "2026-10-17"
      },
      {
        "name": "Durga Saptami",
        "date": "2026-10-17"
      },
      {
        "name": "Kati Bihu",
        "date": "2026-10-18"
      },
      {
        "name": "Durga Ashtami",
        "date": "2026-10-19"
      },
      {
        "name": "Maha Navami",
        "date": "2026-10-20"
      },
      {
        "name": "Vijayadashami",
        "date": "2026-10-21"
      },
      {
        "name": "Lakshmi Puja",
        "date": "2026-10-25"
      },
      {
        "name": "Dhanteras",
        "date": "2026-11-06"
      },
      {
        "name": "Dipabali",
        "date": "2026-11-08"
      },
      {
        "name": "Kali Puja",
        "date": "2026-11-08"
      },
      {
        "name": "Bhai Phonta",
        "date": "2026-11-11"
      },
      {
        "name": "Chhath Puja",
        "date": "2026-11-15"
      },
      {
        "name": "Vrishchika Sankranti",
        "date": "2026-11-16"
      },
      {
        "name": "Jagaddhatri Puja",
        "date": "2026-11-18"
      },
      {
        "name": "Dhanu Sankranti",
        "date": "2026-12-16"
      }
    ]
  },
  "message": "successful",
  "is_error": false
}

Captured from a real call using the exact request above. Results sit under data.

Errors

Metering errors return { "error": "…", "message": "<code>", "is_error": true }. Show error to people and branch on message. See the error reference.