---
title: "Badíʿ (Bahá'í) Calendar (巴哈伊曆)"
method: GET
path: "/api/trpc/badi.calendar"
tags: ["Bahá'í"]
---

# Badíʿ (Bahá'í) Calendar (巴哈伊曆)

`GET /api/trpc/badi.calendar`

## Request

- Base URL: `https://api.asktian.com`
- URL: `https://api.asktian.com/api/trpc/badi.calendar`
- Auth: HTTP bearer

The 2015 astronomical reform computed from the sky — Tehran-equinox Naw-Rúz and the eighth-new-moon Twin Holy Birthdays, the UHJ tables reproduced sixteen-of-seventeen with the 2026 twenty-second razor case pinned as a documented override, the 19×19+Ayyám-i-Há structure proven, and pre-reform years refused as a different system.

Cost: 2 TIAN Points per call. tRPC procedure `badi.calendar`.

## Query parameters

- `input` string

## Response `200`

tRPC result envelope

- TrpcResult: tRPC HTTP response envelope.
  - `result` object
    - `data` object: The procedure's return value (system-specific).

---

[API](https://skmtc.dev/asktian/apis/asktian-metaphysics-api.md) · [All operations](https://skmtc.dev/asktian/apis/asktian-metaphysics-api/llms.txt) · [OpenAPI document](https://skmtc.dev/asktian/apis/asktian-metaphysics-api/revisions/3c8fdc979206?raw)