Users with the appropriate Rights enabled can enter Time Entries for other Users/Employees.
Add time entries to a Job or Work Order (the process is the same for both).
Expand the 'Job Actions' or 'Work Order Actions' menu, then click 'Add Time Entry'.
Next, select the Job or Work Order and Employee using the drop-down menus.
Checking the 'Lunch' box will subtract 30 minutes from the total duration of this time entry.
Use the calendar applet to select the date and Time In/Out.
If the 'Late' box is checked, a Reason drop-down menu will appear.
Once finished, click the 'Submit' button.
The time entry is created in unapproved status.
PTO and UPTO is covered in the "Time Off Request" tutorial.