As my project is about managing Defect from Testing and the date is required to automatically generate Date based on Service Level Agreement(SLA) for example we have "Raised Date" field which will automatically generate date by using system date but we also have "Target Resolution Date" which is required to be D+2 from "Raised Date". Therefore, I'm wondering whether we could configure the field to automatically generate all date field for us such as
Raised Date = 11/Oct/2018 (System Date)
Target Resolution Date = 13/Oct/2018 (Automate D+2 from "Raised Date" field)
Is there any workaround that we can automate date as the example with out any add-ons tool?