At the risk of stealing someone's flawed analogy (ctrl+f dyslexia) - just because millions of people are capable of something doesn't mean that everyone is capable of it.

I'm wondering now if there are any studies of time keeping abilities in the self confessed "dyschronic". Some people have (actually) no concept of temporal relationships and can't judge time passing, is it too far a leap to imagine there is a sliding scale of this condition?