If you wish to have employees login specifically the amount of time that they have worked, but do not need specific login or logout times, you may use duration-based time entry.

You can access Timesheet Blocks by navigating to Administration - Timesheet Settings, and when creating a new template or editing an existing one,  select the Timesheet Blocks tab.

1. Drag the Duration Based Time block to the Timesheet Template Preview.
2. Add any row level custom fields.
3. Add any cell level custom fields.
4. Identify whether Jobs and Comments are necessary to be tagged when encoding worked hours.
5. Decide whether Time Off information such as the number of remaining vacation, sick, or other time off hours should be displayed in the employee’s timesheets.  If so, choose "Enable."
6. Click Save.