**Example 1: To modify the time range of an event window**
The following ``modify-instance-event-window`` example modifies the time range of an event window. Specify the ``time-range`` parameter to modify the time range. You can't also specify the ``cron-expression`` parameter. ::
aws ec2 modify-instance-event-window \
--region us-east-1 \
--instance-event-window-id iew-0abcdef1234567890
--time-range StartWeekDay=monday,StartHour=2,EndWeekDay=wednesday,EndHour=8
Output::
{
"InstanceEventWindow": {
"InstanceEventWindowId": "iew-0abcdef1234567890",
"TimeRanges": [
{
"StartWeekDay": "monday",
"StartHour": 2,
"EndWeekDay": "wednesday",
"EndHour": 8
}
],
"Name": "myEventWindowName",
"AssociationTarget": {
"InstanceIds": [
"i-0abcdef1234567890",
"i-0be35f9acb8ba01f0"
],
"Tags": [],
"DedicatedHostIds": []
},
"State": "creating",
"Tags": [
{
"Key": "K1",
"Value": "V1"
}
]
}
}
For event window constraints, see `Considerations <https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/event-windows.html#event-windows-considerations>`__ in the Scheduled Events section of the *Amazon EC2 User Guide*.
**Example 2: To modify a set of time ranges for an event window**
The following ``modify-instance-event-window`` example modifies the time range of an event window. Specify the ``time-range`` parameter to modify the time range. You can't also specify the ``cron-expression`` parameter. ::
aws ec2 modify-instance-event-window \
--region us-east-1 \
--instance-event-window-id iew-0abcdef1234567890 \
--time-range '[{"StartWeekDay": "monday", "StartHour": 2, "EndWeekDay": "wednesday", "EndHour": 8},
{"StartWeekDay": "thursday", "StartHour": 2, "EndWeekDay": "friday", "EndHour": 8}]'
Output::
{
"InstanceEventWindow": {
"InstanceEventWindowId": "iew-0abcdef1234567890",
"TimeRanges": [
{
"StartWeekDay": "monday",
"StartHour": 2,
"EndWeekDay": "wednesday",
"EndHour": 8
},
{
"StartWeekDay": "thursday",
"StartHour": 2,
"EndWeekDay": "friday",
"EndHour": 8
}
],
"Name": "myEventWindowName",
"AssociationTarget": {
"InstanceIds": [
"i-0abcdef1234567890",
"i-0be35f9acb8ba01f0"
],
"Tags": [],
"DedicatedHostIds": []
},
"State": "creating",
"Tags": [
{
"Key": "K1",
"Value": "V1"
}
]
}
}
For event window constraints, see `Considerations <https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/event-windows.html#event-windows-considerations>`__ in the Scheduled Events section of the *Amazon EC2 User Guide*.
**Example 3: To modify the cron expression of an event window**
The following ``modify-instance-event-window`` example modifies the cron expression of an event window. Specify the ``cron-expression`` parameter to modify the cron expression. You can't also specify the ``time-range`` parameter. ::
aws ec2 modify-instance-event-window \
--region us-east-1 \
--instance-event-window-id iew-0abcdef1234567890 \
--cron-expression "* 21-23 * * 2,3"
Output::
{
"InstanceEventWindow": {
"InstanceEventWindowId": "iew-0abcdef1234567890",
"Name": "myEventWindowName",
"CronExpression": "* 21-23 * * 2,3",
"AssociationTarget": {
"InstanceIds": [
"i-0abcdef1234567890",
"i-0be35f9acb8ba01f0"
],
"Tags": [],
"DedicatedHostIds": []
},
"State": "creating",
"Tags": [
{
"Key": "K1",
"Value": "V1"
}
]
}
}
For event window constraints, see `Considerations <https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/event-windows.html#event-windows-considerations>`__ in the Scheduled Events section of the *Amazon EC2 User Guide*.