**As** an OpenProject user
**I want** to calculate the work package start and end dates based on the duration
**so** that I only have to set the duration.

Begin of the insertion#End of the insertion **Acceptance criteria:**

* Add an attribute "Duration" to work packages.
* Infer the start / finish date based on the entered duration. Begin of the insertion

# Out-of-Scope

End of the insertion Begin of the deletion
End of the deletion * Consider weekends and holidays Begin of the insertion(##18416)End of the insertion Begin of the deletion (see #18416)

**To be discussed**

* Is it possible to develop this feature without implementing non-working days. So if a project manager adds a duration of 5 days to a work package that starts on a Tueday. Do we include information about non-working days in the calculation of the finish date? If yes, we need to extend this with the definition of non-working days.



\===

Original description:

Hello:

Is it possible to calculate start or end dates based on inputted duration from the user?

For example, is there somewhere a user can enter "5 Days", then the start and end dates are automatically calculated and entered into the system?

Thanks.End of the deletion