Main Settings / General Settings / Dashboard Settings / Dashboard Settings & Rights / Show assignments start date on calendar
Here you specify whether the start and end date of the assignment will be displayed as two separate events when the delivery date of the assignment is not the same day as the start date.
Example in studentβs portal
Assignment βY6B-Science Y6-1st Termβ starts on 16/11/2021 and ends on 19/11/2021
Setting -> Active
Setting -> Inactive