QuickBooks offers a variety of reports that help you streamline your work with ease. I'll be happy to share more info so you can continue to do the things you love.
Based on what you've described, I recommend running the Payroll Details report as it shows you the hours worked by your employees. You can filter the report dates so they show since the beginning of the employee's hire date. Here's how to run the report:
Click Reports on the left pane.
Enter Payroll Details in the Go to report search box.