No, this clock won't blow up the planet. But it does have some quirks that you might find interesting. For example, it uses laser beams. What else? See more »

The most expensive wrist watch in the world is embellished with 1,282 diamonds and costs $5 million. But can it really tell time better than a Timex? See more »

Do you check your horoscope compulsively, or snort derisively at the very thought? Before you dismiss astrology as nonsense, consider this: It has a long history with timekeeping. We're happy to tell you all about it. See more »

Sometimes your watch is a little slow -- or at least that's what your friends insist. But down deep you wonder: Whose timepiece is really correct -- yours or theirs? And furthermore, just how accurate can anyone expect his watch to be? See more »

These exquisitely crafted instruments have hundreds of uses. Isn't it time you learned how to use this handy decoder of the sky? See more »

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 »

Dive watches don't just tell time; they can save your life. When you're counting on a limited air supply in the depths of the ocean, you'll want to know when it's time to head for the surface. 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 »