Nonbillable time charges come as expenses.
US QuickBooks Premier : 2012: Professional Services
Time expenses on time sheet marked nonbillable come across as billable "expenses" to invoice.
Time expenses on time sheet marked nonbillable come across as billable "expenses" to invoice.



Without a checkmark, these should not be seen on the Time tab when using Add Time & Costs.
However, if these are timesheets for vendors, and you paid the vendor, then the time might show on the Items tab, unless you remember to also mark the time entries, on the payment to the vendor, as Not Billable.