As daylight saving time comes to an end on November 5 in the U.S., it's worth exploring the history and controversies surrounding this practice. Daylight saving time is the act of moving clocks forward by one hour during the summer months. The idea behind it can be traced back to a New Zealand entomologist in the late 19th century, who proposed it as a means to conserve energy and extend summer daylight hours. Veuer’s Maria Mercedes Galuppo has the story.