By now, most people have noticed that daylight is beginning a little earlier each morning and lingering a little later each evening.

That means spring and Daylight Saving Time are near. In 2013, the big shift happens on Sunday, March 10.

On that date, most of the U.S. will "spring" clocks forward at 2 a.m., meaning, yes, that you'll lose an hour of sleep. But you'll get an extra hour of daylight at the end of the day.

And when does it end? DST will last until November 3, 2013.

The change affects all states except Arizona and Hawaii. (See the attached map.)

Of course, many people would prefer that Daylight Saving Time become the norm, that time would not shift back to standard time in the fall.

A Florida legislator even introduced the "Sunshine Protection Act" in the state legislature to try to make that happen. He admits it has little chance of passing, but he wants to stimulate discussion on the topic.