Sorting timesheet rows
If you use a duration-based timesheet, you may be able to sort timesheet rows, either by task, project, client, activity, or billing option.
To sort rows, click the appropriate column header. If you’re sorting by client, project, or task, sort options will display when you click the Client · Project · Task column header.
You also can't sort rows on in/out timesheets, since they are organized chronologically.