Use DescribeMaintenanceWindows with a CLI

Example 1: To list all maintenance windows

The following describe-maintenance-windows example lists all maintenance windows in your AWS account in the current Region.

aws ssm describe-maintenance-windows

Output:

{
    "WindowIdentities": [
        {
            "WindowId": "mw-0ecb1226ddEXAMPLE",
            "Name": "MyMaintenanceWindow-1",
            "Enabled": true,
            "Duration": 2,
            "Cutoff": 1,
            "Schedule": "rate(180 minutes)",
            "NextExecutionTime": "2020-02-12T23:19:20.596Z"
        },
        {
            "WindowId": "mw-03eb9db428EXAMPLE",
            "Name": "MyMaintenanceWindow-2",
            "Enabled": true,
            "Duration": 3,
            "Cutoff": 1,
            "Schedule": "rate(7 days)",
            "NextExecutionTime": "2020-02-17T23:22:00.956Z"
        },
    ]
}

Example 2: To list all enabled maintenance windows

The following describe-maintenance-windows example lists all enabled maintenance windows.

aws ssm describe-maintenance-windows \
    --filters "Key=Enabled,Values=true"

Example 3: To list maintenance windows matching a specific name

This describe-maintenance-windows example lists all maintenance windows with the specified name.

aws ssm describe-maintenance-windows \
    --filters "Key=Name,Values=MyMaintenanceWindow"

For more information, see View Information About Maintenance Windows (AWS CLI) in the AWS Systems Manager User Guide.

Example 1: This example lists all maintenance windows on your account.

Get-SSMMaintenanceWindowList

Output:

Cutoff   : 1
Duration : 4
Enabled  : True
Name     : My-First-Maintenance-Window
WindowId : mw-06d59c1a07c022145