preferredMaintenanceWindow

The weekly time range (in UTC) during which automated cluster maintenance can occur.

Format: ddd:hh24:mi-ddd:hh24:mi

Default: The value selected for the cluster from which the snapshot was taken. For more information about the time blocks for each region, see Maintenance Windows in Amazon Redshift Cluster Management Guide.

Valid Days: Mon | Tue | Wed | Thu | Fri | Sat | Sun

Constraints: Minimum 30-minute window.