When assessments are deployed as self-assessments, observational assessments or peer assessments, a setting specifies when responses should be shared with students. The default setting for these assessment workflows is to release responses immediately. If you are deploying assessments as email invite assessments, responses are always held back for moderation.
Other options will include to release responses manually or on a given date and time.
If date and time release is selected, an additional line will become available on the deployment screen providing a date picker in a similar way to the existing selectors for scheduling a deployment.