You can enter the subcontractor's time directly in your QuickBooks
company file by filling in a weekly timesheet. Or, you can have the
subcontractors track their own time in the QuickBooks Timer program and send
you the exported hours.
Filling in weekly timesheets
Using the QuickBooks Timer
However you decide to enter time, be sure to record the customer:job and
service item for each time entry. If you want to charge customers for the time,
make the time entries billable.
Turning time tracking on