---
title: "Persian Solar Hijri Calendar (波斯曆)"
method: GET
path: "/api/trpc/persianCalendar.year"
tags: ["Persian"]
---

# Persian Solar Hijri Calendar (波斯曆)

`GET /api/trpc/persianCalendar.year`

## Request

- Base URL: `https://api.asktian.com`
- URL: `https://api.asktian.com/api/trpc/persianCalendar.year`
- Auth: HTTP bearer

Iran's civil year, fixed by the true vernal equinox against Tehran noon — the sāl-tahvil instant to the second, leap years derived from consecutive equinoxes (reproducing the published set), all three readings of the noon rule proven to agree on every published anchor, Yalda's longest-night claim asserted against the solstice, and the year's festivals in both calendars.

Cost: 2 TIAN Points per call. tRPC procedure `persianCalendar.year`.

## 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)