What Types of Clock Keep Extremely Accurate Time?

Radio Controlled Clocks

• One of the most accurate types of clocks in the world is the atomic clock. Atomic clocks rely on the behavior of atoms to judge the exact amount of time that is passing. GPS systems around the world rely on atomic clocks in order to get pinpoint accurate time readings. While you can't really buy an atomic clock to put in your home, you can buy a radio controlled clock or watch. These clocks sync via a radio signal to an atomic clock to always be accurate down to a fraction of a second.

Home Clocks

• For wall clocks, whether you want one with a more affordable quartz time telling mechanism or one with an authentic mechanical movement, the most accurate clocks are traditionally made in Switzerland. This country has made its reputation around not just making high quality watches and clocks, but around being on time in general. Time and precision is very valuable to the makers of Swiss time pieces, and if you buy a genuine product from one of the many companies making clocks in Switzerland, you should have a very accurate timepiece.

Watches

• Some of the watches developed by high-end manufacturers are capable of keeping extremely accurate time without the benefit of an atomic clock signal. TAG Heuer achieved a leap forward in watch accuracy in 2005 when the company debuted a watch that was accurate to 1/100th of a second. High-quality chronograph watches are capable of telling highly accurate time.

Online Clocks

• Clocks that take their time from the Internet may be taking their time from any variety of sources, such as an Atomic clock, a company signal or an official country time, but all of these are extremely accurate. There are now digital clocks that offer online connectivity, but other clocks that are extremely accurate like this would include the clock on Internet capable television sets, on your computer and on your cell phone.