Normally, the Time to Resolve field shows the total time taken for the issue from the time of creation till resolution. If any user wants total time to be calculated from different statuses to resolve, then we should follow the below instructions:
Instructions
Create a calculated field by navigating to AIO Reports → My Area → My Calculated Fields & click Create New Field button.
Configure the calculated field as an example below. You should add intermediate statuses (From In progress to Resolved) to the listitems:
Add the calculated field to your report to get the total time taken by issues to resolve from different statuses:
Ensure to have proper permission to create AIO Report.
You can customize the report by adding other fields.