Daylight Saving Time — setting clocks ahead an hour — goes into effect at 2 a.m. Sunday March 12th. The National Sleep Foundation says “springing forward” takes more of a toll than “falling back,” largely because most Americans are already plenty sleep-deprived as it is. Even though the clocks change by only an hour, the effects can be noticeable. Giving up just one hour of shuteye can negatively impact how you feel and function during the day. It’s as if you end up with a mild case of jet lag!