# Schedule
<a name="API_automation_Schedule"></a>

Configuration for scheduling when automation rules should execute, including timing and execution windows.

## Contents
<a name="API_automation_Schedule_Contents"></a>

 ** executionWindowInMinutes **   <a name="computeoptimizer-Type-automation_Schedule-executionWindowInMinutes"></a>
The time window in minutes during which the automation rule can start implementing recommended actions.  
Type: Integer  
Valid Range: Minimum value of 60. Maximum value of 1440.  
Required: No

 ** scheduleExpression **   <a name="computeoptimizer-Type-automation_Schedule-scheduleExpression"></a>
The expression that defines when the schedule runs. `cron` expression is supported. A `cron` expression consists of six fields separated by white spaces: (`minutes` `hours` `day_of_month` `month` `day_of_week` `year`)  
You can schedule rules to run at most once per day. Your cron expression must use specific values (not wildcards) for the minutes and hours fields. For example: (`30 12 * * *`) runs daily at 12:30 PM UTC.
Type: String  
Required: No

 ** scheduleExpressionTimezone **   <a name="computeoptimizer-Type-automation_Schedule-scheduleExpressionTimezone"></a>
The timezone to use when interpreting the schedule expression.  
Type: String  
Required: No

## See Also
<a name="API_automation_Schedule_SeeAlso"></a>

For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/compute-optimizer-automation-2025-09-22/Schedule) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/compute-optimizer-automation-2025-09-22/Schedule) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/compute-optimizer-automation-2025-09-22/Schedule)