This calculated field returns the number of days an issue was in the "Open" status considering the configured JWT calendar.
Create a new Calculated Number Field (by JWT) custom field and name it properly.
Providing a description will help you to identify what the custom field does but this step is optional.
Add the following expression:
timeInStatus("Open", "my_calendar", LOCAL) / {DAY}
Apart from a time macro, the following functions are used:
Choose Number
Choose
### days
Check the parameter Uninitialized when calculated value is zero
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 (a parent issue ), the result will look like this:
timeInStatus()