Daylight Saving Time ends this weekend, and the question remains, is it really needed anymore?

Supporters argue we save energy by turning back our clock to give us an extra hour of daylight.  The U.S first started using DST in World War I to save fuel.

Dr. David Prerau authored the book “Seize The Daylight,” and is considered an expert on all things DST.  He sees not only has it proven to save energy, there's studies which indicate it may also help reduce traffic accidents.

“By putting more light in the evening and less light in the morning, you might have a few more accidents in the morning, but it is more than compensated by a big decrease in accidents in the evening,” he tells KTRH news.

Prerau believes DST also leads to healthier lifestyles by allowing more daylight to exercise, and it could even help fight crime.

“If you move the sunset back an hour, it allows people to get home from their activities in the daylight rather than the dark, and that decreases crime,” he says.

While we gain an hour for winter, we lose that hour come spring time.  Sleep expert Terry Cralle says that can mess up our inner clock -- especially in children.

“It does disrupt their sleep schedule and can wreak havoc on their daily schedules,” she says.

Cralle says if anything, DST allows us to prioritize and re-evaluate our habits.

“We have to get that quality sleep time in, and we'll have more productive and better quality of hours and higher functioning during awake time,” she says.