Employees need be paid for every minute they work. That's why you use a time clock. But things happen. Employees may forget to clock out, or maybe your power goes out. Other things too, like entering PTO hours, or cash tips. That's when you need to make adjustments.
To show how it works, we'll start with a blank timesheet.
1. Entering In/Out times
Click a row you want to edit.
Enter a typical 9 to 5 workday. Enter 9 for the In time, and 5P for the Out time. Notice how the system completes the time for you.

When finished, click Save, then Done.

Which takes you back to your updated timesheet, fully calculated.
2. Entering PTO hours
Click a row you want to edit
For Tuesday, enter 8 hours of vacation. Enter 8 for the hours, select Vacation Hours for the Earning code, the click Save, then Done. (Note: you can have as many earning codes as you need)

Which takes you back to your updated timesheet, fully calculated.
3. Multiple rows per day
Finally, I wanted to show that timesheets can (and often) have multiple rows per day. In this example on Wednesday, the employee started at 8:30 AM, then left for lunch at 12:30 PM. A second row starts when they clock back IN at 1:00 PM.
To manually enter multiple rows on a timesheet, click the green ADD button. To delete a row, click the orange DEL button.
Those are the basics, hopefully that will get you started.