---
title: "Chinese Element"
method: POST
path: "/chinese/zodiac/element"
tags: ["Chinese: Zodiac & Feng Shui"]
---

# Chinese Element

`POST /chinese/zodiac/element`

Fixed-branch element + cycling-stem element + yin/yang for given solar year.

## Request body

- ChineseDateInput
  - `date` string, required
  - `time` string
  - `timezoneOffset` number, nullable — Hours from UTC at the given moment, not minutes. Fractional zones are hours too: 5.5 for India, 5.75 for Nepal, -3.5 for Newfoundland. Defaults to 0, meaning UTC.
  - `solarYear` integer

## Response `200`

Successful calculation

- object
  - `ok` boolean
  - `data` object
    - `solarYear` number, nullable
    - `fixedElement` string, nullable
    - `cyclingElement` string, nullable
    - `yin` boolean, nullable
    - `description` string, nullable

## Other responses

- `400` — Validation error
- `401` — Missing or invalid API key

## Changes

- **2026-08-22** `5a17388652f3` — 1 breaking, 3 info
  - added the new required request property `date`
  - added the new optional request property `solarYear`
  - added the new optional request property `time`
  - added the new optional request property `timezoneOffset`
- **2026-08-14** `994755209cea` — 2 info
  - api tag `Chinese: Zodiac & Feng Shui` added
  - api tag `Chinese — Zodiac & Feng Shui` removed

[Change history](https://skmtc.dev/astroway/apis/astroway-calculation-api/changes/chinese/zodiac/element/post.md)

---

[API](https://skmtc.dev/astroway/apis/astroway-calculation-api.md) · [All operations](https://skmtc.dev/astroway/apis/astroway-calculation-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/astroway/astroway-calculation-api/revisions/8ab5a768b521/schema)