I think that's beside the point though. I think the point being presented is more: if you are visualizing what time it is in your head, what is the visual representation of time that you have, as presented by your language? In english, if it's 4:23, I feel as though I'm "in" the 4:00 hour, 23 minutes past it. 4:45? Well then I feel like I'm still "in" the 4:00 hour but now 45 minutes into it. Even 4:59 still feels like the 4:00 hour!

The very construct of how a different language presents that time may cause that perception to differ. At least that's how I think of it.