This type of read-only custom field contains a value which is dynamically calculated from a custom math/time expression.
It can be used to obtain a date-time value depending on the value of the current issue or in any other issues (linked issues, sub-tasks, epics, stories, JQL selected issues, etc).
Configuration
Configuring a calculated date-time field is straightforward. You have to configure a valid parser expression, which will "calculate" the output, and optionally a custom display format.
Create a new Calculated Date-Time 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.
Math/time expression
Add a valid parser expression which will "calculate" the output.
Usually field codes will be used for this purpose.
%{issue.updated} #This example simply returns the timestamp (date-time) of when an issue was last updated.
The result of the calculation must be a valid timestamp. Read more about working with Dates, times and time zones.
Display format
Optionally choose a custom display format. This is extremely useful to enhance usability for end users.
Read more about the available Display formats.
Use cases and examples
If you still have questions, feel free to refer to our support team.