Online Digital Clock with Seconds

Free LED digital clock for full-screen viewing

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Free Online Digital Clock with LED Display

A modern digital wall clock with LED display, perfect for full-screen viewing. Choose 12-hour or 24-hour time, show seconds and the date, and customize the display for a living room, office, classroom, or any space that needs a clear time display.

Professional LED Display

  • Large digital numbers with LED style display
  • 12/24 hour format (military time) support
  • Precise seconds display option
  • Date display with multiple formats
  • High contrast for easy viewing

Full Customization

  • Multiple LED color themes available
  • Digital and modern font styles
  • Adjustable display options
  • Dark mode support
  • Full screen mode for wall display

Perfect for Any Setting

  • Modern digital clock for living room
  • Desktop clock for office use
  • Full screen mode for wall display
  • Battery-efficient for continuous use
  • Works on all devices and screens

How to use this online digital clock

The clock starts automatically in your browser. Use Time Format to switch between 12-hour and 24-hour time, then turn seconds or the date on and off as needed. Choose an LED font, select a color theme, and use Full Screen when you need a large, distraction-free display for a desk, classroom, or wall.

Time source and display options

This page reads the current time and time zone from your device, so it works without an account or download. If the time looks wrong, check your device date, time, and time-zone settings. The display is designed for clear everyday viewing; it is not a replacement for a synchronized reference clock when timing must be certified.

Online digital clock FAQ

How do I show seconds on the digital clock?
Seconds are shown by default. Use the Seconds control to hide or show them.
Can I switch between 12-hour and 24-hour time?
Yes. Select Time Format to switch between 12-hour and 24-hour display.
How do I make the clock full screen?
Select Full Screen below the clock. The F11 or Command+Enter shortcut also works where your browser supports it.
Does this clock use my local time?
Yes. It uses the current time and time zone configured on your device.
Why is the displayed time incorrect?
Check your device time, date, and time-zone settings, then refresh the page.