While dark mornings are inevitable in winter, turning the clocks back gives us an extra hour of natural light. At least 15 minutes' exposure to natural daylight, as early as possible in the day ...

Most U.S. states and many countries follow daylight saving time. During daylight saving time, clocks are turned forward by one hour. Later, they're turned back. For example, in the U.S. daylight ...

As the clocks turn 1am this Sunday, they will spring forward to 2am, zapping away an hour of our precious time in bed. While losing sleep is never really good news, there are ways you can optimize ...

where they may be at their peak late and be awake and alert into the night and then wanting to sleep in late in the morning. Sponsor Message So it's both the speed at which our clocks tick ...