This has been requested on and off since 2018 or even earlier. The ui _NEEDS_ a clock somewhere. Time is crucial for most people not living in the past. They need it for jobs, for medications, for whatever aspects of their life that rely on scheduling. It's also relevant for just general health so people aren't staying up all night killing themselves with lack of sleep because time flew by so fast.
It doesn't even have to be front and centre if the sentiment is to want to have people get lost in vr, just have time somewhere in the menu or quick menu so that people aren't forced to use overlays or tab out of the game.