Mark your calendars: Time will spring forward an hour for most of you soon, robbing you of an hour of sleep but guaranteeing more sunlight during the day.

Daylight saving time officially begins at 2 a.m. on Sunday March 9 after clocks switched back an hour on Nov. 3, 2013, to help people adjust to weather changes for the winter.

The time change, however, doesn't apply to everyone. Saskatchewan observes Central Standard Time (CST), one uniform time all year round, in all communities except for Lloydminster.

Numerous areas in B.C., Alberta, Ontario, Quebec and Nunavut also don't observe daylight saving time.

People will no doubt enjoy an extra hour of sunlight in the evenings, but the lost hour of sleep has its costs, according to one study.

The lack of sleep can cost the American economy as much as $434 million, Dan Schecter, creator of SleepBetter.org, said last year.

He came up with the estimate by looking at incidents of heart attacks, workplace injury in mining and construction, and cyberloafing as they relate to daylight saving time, though the financial toll may be even higher when accounting for car accidents and injuries in other fields.

There's also a humourous side to the time change. Twitter users last year blamed problems such as a sleepy drive to work and an early start to the day on daylight saving time.

Also on HuffPost:

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  • Get Your Daily Dose Of Vitamin D

    If you're suddenly feeling down this winter, it could be the result of your body's lack of vitamin D. A study at the <a href="http://www.newcastle.edu.au/">University of Newcastle in Australia</a> tested the effects of vitamin D supplements on a group of people in late winter. Turns out, people who received vitamin D had a dramatic improvement in their moods. “The two best ways to get the vitamin D you need are to get adequate sun exposure (15 to 30 minutes per day) or to take vitamin D supplements,” says Dr. John Cuomo of USANA Health Sciences.

  • Add 30 Minutes Of Exercise Daily

    The <a href="http://www.americanheart.org/">American Heart Association</a> recommends at least 30 minutes of exercise a day and at least three times a week to boost energy levels in the winter.

  • Get More Zinc

    Some studies have shown that zinc could be a natural option to fight off winter colds. One study from the <a href="http://www.asm.org/">American Society for Microbiology</a>, found that zinc was able to shorten the average length of the common cold by about 7 days and increase the body's energy levels.

  • Take A Time Out

    Take a time out — without the kids. According to Dr. David Sack, psychiatrist and CEO of <a href="Promises Treatment Center">Promises Treatment Centre</a>, taking a ten-minute time out from you day, whether stretching, meditating or just daydreaming, can free your mind and prevent your mind from getting fatigued during cold days.

  • Look For All Types Of Vitamin B

    According to the <a href="http://www.nlm.nih.gov/">National Library of Medicine</a>, B vitamins help our bodies make energy from the food we eat. Although most B12 vitamins are found in animals and fish sources, you can also try soy products like soybean or tofu.

  • Try An Organic Diet

    According to Cheryl MacDonald of the <a href="http://healthpsychology.org/life-with-health-psychology-of-san-diego/">Health Psychology of San Diego</a>, eating organic carbohydrates will increase cardiac energy in our bodies. Our liver, she adds, is able to process these carbs quicker and help our bodies feel energetic for a longer period of time.