snapshotCopyCompletionDurationMinutes

Specify a completion duration, in 15 minute increments, to initiate a time-based AMI copy. The specified completion duration applies to each of the snapshots associated with the AMI. Each snapshot associated with the AMI will be completed within the specified completion duration, with copy throughput automatically adjusted for each snapshot based on its size to meet the timing target.

If you do not specify a value, the AMI copy operation is completed on a best-effort basis.

For more information, see Time-based copies for Amazon EBS snapshots and EBS-backed AMIs.