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The daily time range during which automated backups are created if automated backups are enabled, using the BackupRetentionPeriod parameter. For more information, see DB Instance Backups (

Default: A 30-minute window selected at random from an 8-hour block of

time per region. To see the time blocks available, see Adjusting the Preferred Maintenance Window ( in the Amazon RDS User Guide.


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

Times should be in Universal Coordinated Time (UTC).

Must not conflict with the preferred maintenance window.

Must be at least 30 minutes.

PreferredBackupWindow is referenced in 1 repository