Digital Clock Online

A clean, oversized clock for any spare screen. Read the current time at a glance in a 12 or 24-hour format, show or hide the seconds and the date, and tap fullscreen to turn an old monitor or tablet into a desk clock.

  • 100% free
  • No sign-up
  • No clutter or popups
  • Works offline
  • Accurate & distraction-free
Read the guide: Using a Fullscreen Digital Clock
23:51:13

Tuesday, June 16, 2026

How it works

  1. 1

    Set your format

    Choose 12 or 24-hour time, and turn the seconds and the date on or off to suit you.

  2. 2

    Go fullscreen

    Tap fullscreen and the time fills the whole screen, perfect on a spare monitor, tablet or TV.

  3. 3

    Read it from across the room

    The digits scale to the screen and update every second, so the time is clear from a distance.

Great for

  • ✓ Turning a spare screen into a desk clock
  • ✓ A big, readable clock for a desk or studio
  • ✓ A clear time display during streams and calls
  • ✓ A bedside or kitchen clock on an old tablet

No clutter, no popups, no waiting

This tool runs entirely in your browser, so it starts instantly and keeps working offline once the page has loaded. There is no sign-up, no popups fighting for your attention, and nothing is sent anywhere. Add it to your home screen and it opens like a real app.

Frequently asked questions

How does it know the right time?
It reads the clock your device is already set to, so it shows the same time as the rest of your computer or phone. There is nothing to set and nothing is sent anywhere; the time comes straight from your own device.
Can I switch between 12 and 24-hour time?
Yes. A single toggle switches between a 12-hour clock with AM and PM and a 24-hour clock. Your choice, along with whether seconds and the date show, is remembered on your device for next time.
How do I make it fill the whole screen?
Tap the fullscreen button and the clock expands to fill the display, hiding everything else. Press escape or the button again to come back. This makes any spare screen into a clean, large clock.
Does it work offline?
Yes. Once the page has loaded it keeps running with no connection, because the whole tool runs in your browser. You can install it to your home screen and open it like an app.
Do I need an account, and is anything tracked?
No account and no sign-up. The tool runs on your own device, so there is nothing to log in to and your settings stay on your machine. No popups, no clutter.

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