We turn the clocks back an hour this weekend, which means you'll get an extra hour of sleep.

But when people leave work next week at 5 p.m. the sun will have already set. Which means for the next few months you'll be driving home in the dark.

Sunday at 2 a.m. we are going back to standard time. Some health groups, including the American Medical Association and American Academy of Sleep Medicine want to use standard time year-round.

New research from Stanford University finds that switching back-and-forth is the worst option for our health.

The study showed permanent standard time is slightly better because it aligns more with the sun and human biology, what's called our circadian rhythm. Doctors say we already live in a society where most people aren't getting enough sleep at the right times of the day.

"We have more people now working second and third shift than ever before. We are trying to run as efficiently as possible and not necessarily taking into the human need for sleep," said Dr. Steven Thau, Director of Pulmonary Medicine of Fairfield County at Hartford Healthcare.

We will go back to Daylight saving time on March 8, when we turn the clocks ahead.