Use Worklog Report
As a JSM administrator and JSM customer you have access and can expand Worklog Report on the JSM customer portal.
→ From the Requests list on Atlassian Help Center you can find Show Worklog Report button. Expand Show Worklog Report button to see the filters, export options and requests list.
Use Worklog Report
Show Worklog Report
Customer portal: Requests list
Customer portal: Requests list → Worklog Report