Minutes Clock Timer

Body clock timer time using angles. clock timer face with the numbers from 1 to 12 and use the needle to indicate hours and minutes. From a number to a number of nearby 5 minutes (for with kim min), 1 hour (on the hour) or 5 seconds (for metal).

Another type of mechanical watches are used as sundial. It works by tracking often sunlight, and tracking people by looking at their shadow.

Electronic clock timer on a microwave

Electronic use system clock timer to show time. Usually there are two ways to show:

    24 hours to count the hours from 00-23
    12 now with wildcards AM / PM (mainly in the U.S.)

The electronic clock timer using LCD or LED, tube catode image to represent numbers. When the electronic clock timer battery replacement, we often "forget" previous time data.
Audio clock timer

For added convenience, there are some watches use sound to signal the hour. Sound can be used as natural language ("Now is sixteen hours and thirty minutes") or a code (the bell signaling the number of hours).
Word clock timer

This type of clock timer time in the form of letters. If in our electronic clock timer read 12:35, the numbers in the word clock timer, we can read "Twelve-thirty-five minutes." Some other watches using approximate mechanism to make users feel more comfortable when using the clock timer (for example, "About half past twelve") .
Counting time

Most watches have a harmonic oscillator mechanism inside, allowing launched a constant frequency. The number of oscillations that are measured and shown on the face of the clock timer.

    Mechanical clock timer pendulum using the harmonic oscillator mechanism, along with the gears to control the clock timer
    The electricity used to run the clock timer

    Crystal clock timer using the quartz crystal and a frequency divider system to count the time. With modern clock timer frequency is 215 Hz = 32768 kHz
    Molecular clock timer is the most accurate clock timer that people make, use ultrasound to excite the molecules, such as cesium, rubidium, hydrogen. Molecular clock timer using cesium is used to define the current time
    clock timer pulse frequency count of current into (50 Hz or 60 Hz)
    clock timer radio receives a code from a nearby broadcast station and adjust the time accordingly. These watches are used by divers
    Sundial tracking position between the sun and Earth