PIERRE, S.D.(KCCR)- Clocks shifted backward one-hour this weekend as Daylight Saving Time ended, reverting time back in participating areas to Daylight Standard Time.  That time change of only 60 minutes can have a big impact on activities like driving a vehicle.

Shawn Steward with Triple A South Dakota says the most recent figures show over 600 fatalities connected to drowsy driving at the time change.

Steward says not getting enough sleep can have the same effect as driving drunk.

Symptoms of drowsy driving can include difficulty keeping your eyes open, lane driving and failing to remember the last few miles you’ve driven.