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  • This is a free online web app. No installation required.
  • Displayed time would sync with the NTP server.
  • A clock synchronization algorithm displays the exact time in your browser.
  • You can modify the page title, and the button is at the bottom of the page. It's a useful function when you are running an activity.
  • The screen will not turn off when the application is running unless you manually turn off the screen.
  • After you start the alarm clock, the first row is the current time, and the second row is the remaining time.