How to Configure Windows Mobile to Use NTP

Written by tammy clevenger
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Network Time Protocol (NTP), an Internet protocol, synchronises the time on a computer to a single source: usually an atomic clock or other reliable device. David Mills of the University of Delaware developed the NTP Internet standard. Microsoft's Windows Mobile operating systems receive NTP packets and configure the device’s time using an NTP client. Several Windows Mobile NTP clients, such as the TimeSync TZ and the SyncroTime applications, are available to purchase and download on the Internet. Some products offer free or trial versions as well.

Skill level:


  1. 1

    Download the NTP client installation CAB file from the NTP client download site (see Resources for options) and save the file to the desktop.

  2. 2

    Connect the mobile device to the syncing computer by cradling the device, or using the USB connector cable or Bluetooth connection. ActiveSync will launch on the computer when the mobile device is detected.

  3. 3

    Click the “Explore” option from the top navigation menu in the ActiveSync window. The file explorer will open and the root of the mobile device will be displayed.

  4. 4

    Drag the NTP installation CAB file from the desktop and drop the file into the root of the mobile device in the file explorer. The CAB file will move onto the mobile device.

  5. 5

    Disconnect the mobile device from the computer.

  6. 6

    Locate the CAB file on the mobile device. If saved to the root of the mobile device, the CAB file will be located in “My Documents.”

  7. 7

    Tap the CAB file to install the NTP client files to the device. Shortcuts will also be installed to the Start menu and Programs directory. A notification message appears verifying that the installation is complete. The program is now installed and ready to use on the mobile device.

  8. 8

    Click “Start” and then click the option for the NTP client application to open the program.

  9. 9

    Select a time source from the drop-down list, or type a URL to a new time source.

  10. 10

    Tap the “OK” button to save the data, completing the configuration of the NTP client on the mobile device.

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