Six facts about daylight savings time


Nick Miller -- Web Editor

Everyone will be getting an extra hour of sleep on Saturday night once Daylight Savings Time comes to an end.

But why do we change our clocks in the first place, and what impact does it really have?

D-S-T reportedly developed from an idea from Benjamin Franklin in the 1700s. However, it was first used during World War I as part of an effort in the United States and other warring countries to converse fuel. In theory, it saves fuel and energy because it reduces the nation's need for artificial light.

However, that is not the case. According to recent studies, energy saved on lighting in the summer months is canceled out by our increased use of heating and air conditioning.

Its use varies worldwide; 70 countries, including China, do not use daylight savings time at all. Almost all of the countries who use D-S-T are in the northern hemisphere. Two states, Arizona and Hawaii, also do not use it.

Numerous studies have shown crime rates are lower during daylight savings time, as are the numberof cars hitting pedestrians.

However, it has a negative effect on your health. The change in time causes stresses on a person's body, which leads to an increase in heart attacks the first week after the change. Sleep and some mental disorders are also impacted at the end of D-S-T.

Since it requires you to check the clocks on your electronic devices, this weekend is a perfect opportunity to change the batteries in your smoke and carbon monoxide detectors and weather radios.