Clocks come in many different forms, from quartz watches to atomic clocks. Take a peek inside and learn what makes each kind tick. See more »

When you need to know the time, there's about a 50-50 chance you'll turn to some LEDs to find out. Have you ever wondered what goes on inside a digital clock or watch? See more »

Many radio-controlled clocks automatically sync their time with the atomic clock in Boulder, Colorado. How do they do it? See more »

Curious about how a self-winding watch works? Take a look at the mechanics inside a self-winding watch. See more »

Indiglo watches convert electricity directly into light through the very efficient process of electroluminescence. Find out how it works! See more »

Have you ever looked inside a grandfather clock or a small mechanical alarm clock? Pendulum clocks are fairly complicated, but they rely on simple forces. Find out how pendulum clocks keep accurate time. See more »

Quartz watches actually use quartz crystals to keep time. How can they be so accurate? Find out why quartz makes such a great time keeper. See more »

The trend in technology is to get more and more "connectivity" into smaller and smaller packages. Find out how it's possible to access news, weather, sports, stocks, horoscopes, e-mail and more from a wristwatch. See more »

Some people feel you should live for today. Others believe you should think about your part in the seeming never-endingness of time. But how do you measure that? See more »

Wind-up alarm clocks have been around a long time, but they are still fun to explore. See what's inside this classic ticker! See more »