But in my observation, the younger generations are less adept at that -- if I tell my nephew it's "quarter 'till 3", he says "I don't know what that means", then I explain it and he has to really think about it and do the math in his head to figure out what time it is. Which makes sense since I grew up reading analog clock, and he most often uses his phone or iWatch with a digital time display most of the the time -- the habit of breaking time into quarters is not as intuitive.