Good afternoon, @peter140.
Welcome to the Community! I'd be happy to provide you with some information.
In QuickBooks Desktop, you can track your subcontractor's time and pay them for the hours they worked using the Time Tracking features, similar to how you manage employee time. You'll need to set up your subcontractor as a Vendor and assign service items to their timesheets.
In addition, check out this guide about contractors and tracking them in QBDT.
Feel free to reach back out if you have any other questions or concerns. We're always here to help!