Depends on your subscription type. If you're an RHLS-Basic subscriber, we have a Reports tab that will show your lab time consumption as one of the reports. If you're an RHLS-Standard user, we've not been able to integrate this into the UI platform being used, so for the meantime, you can ask for it through a support request.
We've been planning some changes to RHLS-Standard for a long time, just been waiting on the resources to perform them. Right now, we're going through and moving all our existing components to being written in React.js.