Currently it is not possible to get DeliveredTime information for emails sent via Journey Builder.
All other engagement datapoints are available (Sent, Open, Click, Bounce EventDates) but DeliveryTime from _Job Data View returns NULL for Journey Builder Emails.
This is happening, however, only for Journey Builder Emails, as for sends via any other methods (for example Send Flow) are correctly displaying delivery time.
This is huge limitation for automations focused on keeping the database clean and debugging sends.
Please include _Job.DeliveredTime data for Journey Builder Emails.