I appreciate you reaching us out here in the Community today. I know an app that can track the employees hours of work and can be uploaded in QuickBooks and I will be happy to share this with you.
You can use TSheets. This allows you to track your time from anywhere, and then allows multiple users to send the time to QuickBooks. This also means there's no need to breach a firewall and ensures added security when using QuickBooks on a server.
To know more about this app and how you can integrate this with QuickBooks, please check out these articles: