Use case

The prediction of the completion date of an epic is very useful for reporting and planning purposes. 

This use case calculates the predicted completion date based on cumulated remaining estimates of all issues linked to each epic.

To calculate the remaining estimates, a second calculated field will be used, which is explained in this use case: Total remaining estimate in an epic (all linked issues)


Create a new Calculated Date-Time Field (by JWT) custom field and name it appropriately.

Providing a description will help you to identify what the custom field does, but this step is optional.

Parser expression

Add the following expression:

Date/Time expression for Calculated Date/Time field:
addTimeSkippingWeekends(%{system.currentDateTime}, {issue.cf10200}*{DAY}, LOCAL, {FRIDAY}, {SATURDAY})

{issue.cf10200} is the field code for the calculated field Epic Remaining. See this use case on how to calculate this value: Total remaining estimate in an epic (all linked issues)

Additionally to the JWT calculated number field this example uses the addTimeSkippingWeekends() function.

Display Format

Format type

Choose Date Time Picker

Add the field to the relevant view screens.

Remember: All calculated fields are read-only and cannot be manually updated on a create or edit screen.

Check the results

Once configured and added to an issue screen (e.g. an epic), the result will look like this:

If you still have questions, feel free to refer to our support team.