I can definitely see how important it is to see how many hours your employees have worked and how many hours they've missed, LDO.
It seems that you've posted a similar concern here in the Community. My colleague already provided the details you needed to use for the missed hours of your employees.
You can click this link and view his post: https://quickbooks.intuit.com/learn-support/en-us/quickbooks-time/re-employee-not-showing-up-when-sc....
You can still ask us whenever you have questions regarding reports here in QuickBooks Online. Feel free to keep us notified by leaving your concerns in the comment section.