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# AWS::ApplicationSignals::ServiceLevelObjective Interval
<a name="aws-properties-applicationsignals-servicelevelobjective-interval"></a>

The time period used to evaluate the SLO. It can be either a calendar interval or rolling interval.

## Syntax
<a name="aws-properties-applicationsignals-servicelevelobjective-interval-syntax"></a>

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

### JSON
<a name="aws-properties-applicationsignals-servicelevelobjective-interval-syntax.json"></a>

```
{
  "[CalendarInterval](#cfn-applicationsignals-servicelevelobjective-interval-calendarinterval)" : CalendarInterval,
  "[RollingInterval](#cfn-applicationsignals-servicelevelobjective-interval-rollinginterval)" : RollingInterval
}
```

### YAML
<a name="aws-properties-applicationsignals-servicelevelobjective-interval-syntax.yaml"></a>

```
  [CalendarInterval](#cfn-applicationsignals-servicelevelobjective-interval-calendarinterval): 
    CalendarInterval
  [RollingInterval](#cfn-applicationsignals-servicelevelobjective-interval-rollinginterval): 
    RollingInterval
```

## Properties
<a name="aws-properties-applicationsignals-servicelevelobjective-interval-properties"></a>

`CalendarInterval`  <a name="cfn-applicationsignals-servicelevelobjective-interval-calendarinterval"></a>
If the interval is a calendar interval, this structure contains the interval specifications.  
*Required*: No  
*Type*: [CalendarInterval](aws-properties-applicationsignals-servicelevelobjective-calendarinterval.md)  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`RollingInterval`  <a name="cfn-applicationsignals-servicelevelobjective-interval-rollinginterval"></a>
If the interval is a rolling interval, this structure contains the interval specifications.  
*Required*: No  
*Type*: [RollingInterval](aws-properties-applicationsignals-servicelevelobjective-rollinginterval.md)  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)