Daylight Saving Time May Cause Increase in Energy

HARRISONBURG, Va. (WHSV) -- This weekend, remember to set back your clocks an hour for daylight saving time.

For many people, this means one more hour of extra sleep.

With more light in the morning, many people say daylight saving time helps us spend less money on electricity, but that may not be the case.

Jeffrey Tang is an Associate Dean of the College of Integrated Science and Engineering at James Madison University. He said evidence shows that daylight saving time does decrease the use of electricity for lighting, but when it comes to overall energy, the evidence is a little more mixed picture.

"It extends the time that air conditioning is being used. So, if you keep your air conditioner on longer because you are awake more, and still active, then that will tend to increase energy usage," said Tang.

The time change takes place at 2 a.m. on Sunday. Your smartphones and laptops should change automatically.

You will have to physically turn your manual clocks back an hour before you head to bed on Saturday. is happy to provide a forum for commenting and discussion. Please respect and abide by the house rules:

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