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# AWS::AppMesh::VirtualNode Duration
<a name="aws-properties-appmesh-virtualnode-duration"></a>

An object that represents a duration of time.

## Syntax
<a name="aws-properties-appmesh-virtualnode-duration-syntax"></a>

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

### JSON
<a name="aws-properties-appmesh-virtualnode-duration-syntax.json"></a>

```
{
  "[Unit](#cfn-appmesh-virtualnode-duration-unit)" : String,
  "[Value](#cfn-appmesh-virtualnode-duration-value)" : Integer
}
```

### YAML
<a name="aws-properties-appmesh-virtualnode-duration-syntax.yaml"></a>

```
  [Unit](#cfn-appmesh-virtualnode-duration-unit): String
  [Value](#cfn-appmesh-virtualnode-duration-value): Integer
```

## Properties
<a name="aws-properties-appmesh-virtualnode-duration-properties"></a>

`Unit`  <a name="cfn-appmesh-virtualnode-duration-unit"></a>
A unit of time.  
*Required*: Yes  
*Type*: String  
*Allowed values*: `s | ms`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`Value`  <a name="cfn-appmesh-virtualnode-duration-value"></a>
A number of time units.  
*Required*: Yes  
*Type*: Integer  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)