The TimeSheet List report shows a printable view of users timesheet. It always displays the TimeSheet in the standard view. If the employee uses In-Out timesheet, the TimeSheet list report will convert the display of the timesheet into a standard view.
This can make the view to be completely different; the number of rows that appear on an In-Out timesheet may be lesser than what is displayed on the TimeSheet List report but the total hours entered on each day and against each Project/Task/Activity will remain same.