GET THE APP

Buy

Try Riragon NTP Clock Monitor free for 7 days on Microsoft Store. The standard price in Japan is ¥980; check the Store for local pricing and availability.

Start with a 7-day free trial.

Standard price in Japan: ¥980 · Microsoft Store

Try the clocks and countdowns on your own Windows desktop. Check the Store for trial availability and local purchase options.

Try it on Microsoft Store

The standard price in Japan is ¥980. Microsoft Store shows the current price and trial terms for your location, along with supported regions and the released version.

System requirements

Operating system
Windows 10, version 2004 or later / Windows 11
Architecture
x64
App languages
Japanese / English
NTP connection
Internet access and UDP port 123
Time correction
Applies to the time displayed by the app. Windows clock and synchronization settings stay unchanged.

These requirements come from development documentation. Check the Store listing for the requirements of the released version.

Get started

  1. Open the Store listing

    Check the product name and compatibility with your PC.

  2. Follow the trial or purchase instructions

    Use the trial, installation, and purchase options shown by Microsoft Store for your region.

  3. Set a timer for your next start time

    If you use NTP correction, wait for a valid response. Give the timer a name and target time, then place the app where it is easy to see.

Questions before you buy?

Visit Support & contact for help with features and system requirements.