“Rise and shine!  Time to get up!”
“But why, Daddy?  It’s still dark out.”
That was the exchange which started my day.  It’s a good question, why should we have to get up when it’s still dark?  That goes against our instincts.  It’s in our nature to sleep when it’s dark and wake up when it’s light.  Why on Earth would we go against our nature?
The answer, of course, is Daylight Savings Time.