(creative commons/Martin Pettitt)

For the past few weeks, people across America have looked at each other and asked, When is Daylight Savings? In 2011, Daylight Savings doesn't actually end until the morning of Sunday, Nov. 6.

Yet, if Google trends are any indication, people have been curious for weeks when the day would finally come that they could fall back into an extra hour of sleep.

On Nov. 6, you'll move the clock back one hour and enjoy 60 more minutes of precious sleep each morning.

If it seems like Daylight Savings is coming particularly late this year, that's because a change was made a few years ago. The Energy Policy Act of 2005 altered the beginning and end dates of daylight savings. Starting in 2007, clocks were set ahead one hour on the second Sunday of March instead of the first Sunday of April. Similarly, clocks were then set back one hour on the first Sunday in November rather than the last Sunday in October.

The new measure was put in place in an attempt to save energy.

While most follow the rule, not all states and U.S. territories observe daylight saving time - and the Federal Government doesn't require them too!

Residents of Hawaii, Arizona, American Samoa, Guam, Puerto Rico and the Virgin Islands do not change the clocks

Confusingly, Arizona is not even consistent within itself. While the state ignores daylight savings time, the Navajo Nation inside of it does follow daylight savings. Complicating matters even more, the Hopi territory within the Navajo Nation ignores daylight savings.

Here's a quick tip for those in states that actually observe Daylight Savings. It's good to get in a routine of changing the batteries in all smoke detectors, carbon monoxide detectors, and flashlights each time you change the clocks.

If you want a closer look into the science and philosophy behind daylight savings, watch this intriguing viral video below:

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