Timesheet entries can be created in a few areas, depending on whether you're recording labour against tasks (productive time) or overheads such as leave (non-productive time).
Permission Groups
Managers and Supervisors can add timesheets for other users. Site Administrators can enable this access for those in custom permission groups.
Custom Permission Groups...
Permission Groups > [Select permission group] > Users > Filters > Current User (set to unticked)
Permission Groups > [Select permission group] > Timesheets > Fields > Users > View (set to ticked)
Permission Groups > [Select permission group] > Task > Filters > Labour Created by or Assigned to User (set to unticked)
Use the short videos below to choose your preferred method.