preferredBackupWindow

The daily time range during which automated backups are created if automated backups are enabled, using the BackupRetentionPeriod parameter.

The default is a 30-minute window selected at random from an 8-hour block of time for each Amazon Web Services Region. To view the time blocks available, see Backup window in the Amazon Aurora User Guide.

Valid for Cluster Type: Aurora DB clusters and Multi-AZ DB clusters

Constraints:

• Must be in the format hh24:mi-hh24:mi.

• Must be in Universal Coordinated Time (UTC).

• Must not conflict with the preferred maintenance window.

• Must be at least 30 minutes.