1. Overview 
An atomic clock software works by connecting to time servers over the internet, for example, to the time servers at NIST (National Institute of Standards and Technology) in Boulder, Colorado. It compares the local time in the computer with the current time reported by the time server. The program then displays the difference between the two values (your system time and the time in the atomic clock server) and if greater than 15 seconds, it lets you adjust your PC time. The overall uncertainty in this comparison should be no worse than +/- 5 seconds under all circumstances and will be substantially less than this value in most cases.
2. Program Description
Atomclock is an advanced atomic clock sync software that synchronizes the time of your computer with time servers over the Internet. Atomclock can use the National Institute of Standards and Technology (NIST) servers or others built in servers localted around the world. It can be used also as a small desktop chronograph. Atomclock has a friendly interface and many useful features which makes the time synchronization process fast and easy.
Click here to read more about atomic clocks
3. Features
AtomClock includes a list of well known time servers including NIST Time Servers in Boulder, Colorado.
3.1. Proxy Server Support: advanced option that enables the program to connect over a http proxy server when the PC is behind a firewall. Usually this option is disabled, but may be required in some installations.
3.2. World Time: Atomclock provides the time of any location in the world. Just set your present location in World Time, and all time zones adjust to the correct time and current location. Get correct and current world times with accurate daylight saving adjustments for every zone.
4. Registration
5. Downloads
6. Installation:
After installed and run, Atomclock is displayed as a small icon in the windows toolbar. All its functions can be accessed clicking the icon in the windows toolbar. To install follow these steps.
- Download and install the program.
- Connect to the Internet.
- Open Atomclock and click the Ping button to compare your time to the time server. Your pc can be synchronized to the time server in less than 5 seconds. You can set the program to run every hour, every 2 hours, etc. to automatically resynchronize your machine. In dialup connections, it will automatically open a dialup connection to connect to the Internet and disconnect when finished.
7. Screenshots
- Setting up Atomclock
- AtomClock and WorldTime
- AtomClock in the windows toolbar
Figure 1. The Main Window.
NIST Image Gallery
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Image Caption: Frost in trees
Image Credit: NIST
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Image Caption: WWVB ground antennas
Image Credit: NIST
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Image Caption: Sunrise view of the yagi antenna
Image Credit: NIST
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Image Caption: Sunset in the radiostation
Image Credit: NIST
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