> ## Documentation Index
> Fetch the complete documentation index at: https://developer.z-api.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Update business hours

> Updates the business hours on WhatsApp Business

## Overview

This method is responsible for updating the business hours on the WhatsApp Business profile.

***

## Attributes

### Header

<ParamField path="instanceId" type="string" required>
  Your instance ID. Available in the Z-API panel under **Instances**.
</ParamField>

<ParamField path="token" type="string" required>
  Your Z-API instance token.
</ParamField>

### Required

<ParamField body="timezone" type="string" required>
  Timezone
</ParamField>

### Optional

<ParamField body="mode" type="string">
  Operating mode: `specificHours`, `open24h` or `appointmentOnly`
</ParamField>

<ParamField body="days" type="array">
  List of days with business hours (dayOfWeek, openTime, closeTime)
</ParamField>

***

## Request Body

```json theme={"theme":{"light":"github-light","dark":"poimandres"}}
{
  "timezone": "America/Sao_Paulo",
  "days": [
    {
      "dayOfWeek": "MONDAY",
      "openTime": "08:00",
      "closeTime": "12:00"
    }
  ],
  "mode": "specificHours"
}
```

***

## Response

### 201

<ResponseField name="success" type="boolean">
  `true` if successful, `false` if it failed
</ResponseField>

```json theme={"theme":{"light":"github-light","dark":"poimandres"}}
{
  "success": true
}
```

### 405

Make sure you are correctly sending the method specification, that is, verify that you sent POST or GET as specified at the beginning of this topic.

### 415

If you receive a 415 error, make sure to add the "Content-Type" header to your request, which in most cases is "application/json".