Daylight Savings Time officially ends Sunday at 2 a.m. - so are you setting your clock back or jumping one hour ahead?

It can be tough to remember exactly what to do when another Daylight Savings day comes around. Just remember the old saying "Spring forward, fall back" to indicate that you will be setting your clock back one hour tonight. Daylight Savings Time ends at 2 a.m. but you will probably want to set all of your clocks back before bed.

So that means you will get one extra hour of sleep (in theory, of course). It also means that the sun will begin setting at an earlier time.

You won't have to worry about changing your electronic devices like your smartphone, your computer or your tablet. All of these devices adjust automatically.

The American Red Cross also recommends that you take this time to check your smoke alarm and carbon monoxide detector, as recommended by Neela Mukherjee Lockel, the CEO of the American Red Cross on Long Island.

"Working smoke alarms cut the risk of dying in a home fire in half," she said. "Turn and test is a reminder to set your clocks back and take a few minutes to push the test button to make sure all alarms are working."

So what exactly is the purpose of Daylight Savings Time? It began as an energy-preserving policy by the Germans in 1916, and quickly spread to other countries during World War I and II, including the U.S. In addition to saving on energy, Daylight Savings Time leads to a better lifestyle and economy overall, according to DST expert David Prerau.

"People don't like driving in the dark, and daylight savings reduces traffic accidents. Crime is reduced also, because of that extra hour of daylight," he said.

The next Daylight Savings Time is Sunday, March 12, 2017 at 2 a.m. - at which point you will set your clocks one hour ahead.

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