You can configure backup settings by navigating through Backup-> Configure Backup Settings->Backup Window.
Check the 'How to configure Backup Window' video.
Configure a time interval during which the backups should not run. All the backup jobs running at the beginning of the backup window will be suspended and the backups will be resumed after the window period ends.
Click on the Edit button to enable the Backup Schedule settings
Enter the time in between backups that should not run, and also select the days according to your preference.
Once entering the backup schedule settings click on the Update button