GET

/#Action=ModifyInstanceEventWindow

http://ec2.{region}.amazonaws.com/#Action=ModifyInstanceEventWindow

Modifies the specified event window. You can define either a set of time ranges or a cron expression when modifying the event window, but not both. To modify the targets associated with the event window, use the <a>AssociateInstanceEventWindow</a> and <a>DisassociateInstanceEventWindow</a> API. If Amazon Web Services has already scheduled an event, modifying an event window won't change the time of the scheduled event. For more information, see <a href="https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/event-windows.html">Define event windows for scheduled events</a> in the Amazon EC2 User Guide.

Access Token Required: API Key

Query Params

DryRunboolean

Checks whether you have the required permissions for the action, without actually making the request, and provides an error response. If you have the required permissions, the error response is <code>DryRunOperation</code>. Otherwise, it is <code>UnauthorizedOperation</code>.

Namestring

The name of the event window.

InstanceEventWindowIdstringrequired

The ID of the event window.

TimeRangearray

The time ranges of the event window.

CronExpressionstring

The cron expression of the event window, for example, <code>* 0-4,20-23 * * 1,5</code>. Constraints: <ul> <li> Only hour and day of the week values are supported. </li> <li> For day of the week values, you can specify either integers <code>0</code> through <code>6</code>, or alternative single values <code>SUN</code> through <code>SAT</code>. </li> <li> The minute, month, and year must be specified by <code>*</code>. </li> <li> The hour value must be one or a multiple range, for example, <code>0-4</code> or <code>0-4,20-23</code>. </li> <li> Each hour range must be >= 2 hours, for example, <code>0-2</code> or <code>20-23</code>. </li> <li> The event window must be >= 4 hours. The combined total time ranges in the event window must be >= 4 hours. </li> </ul> For more information about cron expressions, see <a href="https://en.wikipedia.org/wiki/Cron">cron</a> on the Wikipedia website.

Actionstringrequired

Allowed:

Versionstringrequired

Allowed:

Responses

{
  "success": true,
  "data": {
    "id": "abc123",
    "created_at": "2025-01-01T00:00:00Z"
  }
}

{
  "success": false,
  "error": {
    "code": "VALIDATION_ERROR",
    "message": "Invalid request parameters"
  }
}

Language

CredentialsAPI KEY

API Key

Enter token below to save for later

cURL Request

1curl --request GET \
2     --url 'http://ec2.{region}.amazonaws.com/#Action=ModifyInstanceEventWindow' \
3     --header 'accept: application/json' \
4     --header 'content-type: application/json'

Response

1{
2  "success": true,
3  "data": {
4    "id": "abc123",
5    "created_at": "2025-01-01T00:00:00Z"
6  }
7}