This is the new *Amazon CloudFormation Template Reference Guide*. Please update your bookmarks and links. For help getting started with CloudFormation, see the [Amazon CloudFormation User Guide](https://docs.amazonaws.cn/AWSCloudFormation/latest/UserGuide/Welcome.html).

# AWS::CloudWatch::AlarmMuteRule Rule
<a name="aws-properties-cloudwatch-alarmmuterule-rule"></a>

The configuration that defines when and how long alarms should be muted.

## Syntax
<a name="aws-properties-cloudwatch-alarmmuterule-rule-syntax"></a>

To declare this entity in your Amazon CloudFormation template, use the following syntax:

### JSON
<a name="aws-properties-cloudwatch-alarmmuterule-rule-syntax.json"></a>

```
{
  "[Schedule](#cfn-cloudwatch-alarmmuterule-rule-schedule)" : Schedule
}
```

### YAML
<a name="aws-properties-cloudwatch-alarmmuterule-rule-syntax.yaml"></a>

```
  [Schedule](#cfn-cloudwatch-alarmmuterule-rule-schedule): 
    Schedule
```

## Properties
<a name="aws-properties-cloudwatch-alarmmuterule-rule-properties"></a>

`Schedule`  <a name="cfn-cloudwatch-alarmmuterule-rule-schedule"></a>
Defines the schedule configuration for an alarm mute rule.  
The rule contains a schedule that specifies when and how long alarms should be muted. The schedule can be a recurring pattern using cron expressions or a one-time mute window using at expressions.  
*Required*: Yes  
*Type*: [Schedule](aws-properties-cloudwatch-alarmmuterule-schedule.md)  
*Update requires*: [No interruption](https://docs.amazonaws.cn/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)