**Example 1: To add a scheduled action to an Auto Scaling group** This example adds the specified scheduled action to the specified Auto Scaling group. :: aws autoscaling put-scheduled-update-group-action \ --auto-scaling-group-name my-asg \ --scheduled-action-name my-scheduled-action \ --start-time "2021-05-12T08:00:00Z" \ --min-size 2 \ --max-size 6 \ --desired-capacity 4 This command produces no output. If a scheduled action with the same name already exists, it will be overwritten by the new scheduled action. For more examples, see `Scheduled scaling `__ in the *Amazon EC2 Auto Scaling User Guide*. **Example 2: To specify a recurring schedule** This example creates a scheduled action to scale on a recurring schedule that is scheduled to execute at 00:30 hours on the first of January, June, and December every year. :: aws autoscaling put-scheduled-update-group-action \ --auto-scaling-group-name my-asg \ --scheduled-action-name my-recurring-action \ --recurrence "30 0 1 1,6,12 *" \ --min-size 2 \ --max-size 6 \ --desired-capacity 4 This command produces no output. If a scheduled action with the same name already exists, it will be overwritten by the new scheduled action. For more examples, see `Scheduled scaling `__ in the *Amazon EC2 Auto Scaling User Guide*.