The daily time range during which automated backups are created if automated backups are enabled, using the BackupRetentionPeriod parameter. Default: A 30-minute window selected at random from an 8-hour block of time per region. See the Amazon RDS User Guide for the time blocks for each region from which the default backup windows are assigned. Constraints: Must be in the format hh24:mi-hh24:mi. Times should be Universal Time Coordinated (UTC). Must not conflict with the preferred maintenance window. Must be at least 30 minutes.

public string PreferredBackupWindow { get; set; }