Add Yahoo as a preferred source to see more of our stories on Google. The darkest days of winter have come and gone, welcoming the slow growth of longer days and shorter nights — even if mornings still feel dim. But in just a few months, clocks will ...

Daylight saving time, where clocks are turned one hour ahead, is meant to save energy and capitalize on more sunlight during the day and has been in place for over 100 years. The practice began after the Standard Time Act was passed and went into effect back in March 1918, as the Library of Congress notes.