EventTimerEventTimer.io

Free Online Digital Clock

Display the current time in large, crystal-clear digits on any screen. Perfect for offices, studios, classrooms, and event venues, fullscreen, accurate, and free.

No signup  ·  No download  ·  Works on every device

Live Clock

13:24:03

Real-time clock display

Millisecond precision·Works on all devices·Fullscreen display·Instant start

Big Digital Clock for Offices & Studios

Mount a large digital clock on your office wall using any tablet, monitor, or smart TV running a browser. EventTimer's clock mode displays the current time in oversized, high-contrast digits that are visible from across the room. Choose 12-hour or 24-hour format, show or hide seconds, and pick a color scheme that matches your workspace. It's the modern replacement for a wall clock, always accurate, always readable, and completely free.

  • 12-hour or 24-hour format
  • Show or hide seconds
  • Auto-brightness-friendly dark theme
  • Works on any device with a browser
13:24:03
Live display

Large Digital Clock Display for Classrooms

Every classroom needs a clock that every student can read. Project EventTimer's digital clock on your smartboard or connect a spare monitor, and the entire class has a clear, shared time reference. The large display mode shows time in digits big enough to read from 20+ meters, and you can toggle between clock-only mode and a clock + countdown combo that shows both the current time and the remaining class time. Teachers love the dual display for keeping lessons on track.

  • Giant digits visible from the back row
  • Clock + countdown dual display
  • Runs on smartboards and projectors
  • No installation, just open the browser
13:24:03
Live display

Fullscreen Clock for Events & Broadcasting

Event venues, green rooms, and broadcast control rooms all need an accurate, visible clock. EventTimer's clock mode syncs to your device's system time for accuracy, and the fullscreen option removes all chrome so only the time is displayed. Use it on confidence monitors backstage, on lobby screens for attendees, or in the control booth for segment timing. Pair it with a countdown timer on a second screen for a complete event-timing setup.

  • System-time accuracy
  • Clean, distraction-free display
  • Pair with countdown timers
  • Great for green rooms & lobby displays
13:24:03
Live display

Get started

Three steps, no signup

1

Open the timer

Visit eventtimer.io. The timer loads instantly in your browser, on any device.

2

Set your duration

Type any duration or choose a preset. Switch between countdown, count-up, or clock mode.

3

Go fullscreen and start

Press F for fullscreen, Space to start. Share the link if your team needs to see it.

Common questions

How accurate is this online clock?

The clock uses your device's system time, which syncs with internet time servers. It's accurate to within a second for all practical purposes.

Can I display both a clock and a countdown at the same time?

Yes. EventTimer supports a dual mode that shows the current time alongside a countdown timer, so you can see both on a single screen.

Does it support 24-hour time format?

Yes. You can switch between 12-hour (AM/PM) and 24-hour format in the settings.

Can I use this as a digital wall clock on a TV?

Absolutely. Open EventTimer in the browser on a smart TV or a device connected via HDMI, switch to clock mode, and go fullscreen. It makes a perfect digital wall clock.

Will the screen stay on or go to sleep?

Most devices will stay awake while a fullscreen web page is active. If your device dims, adjust the screen timeout in your device settings.

Explore more

Related timers and resources

Stop searching for the right timer. This one works.

Try it now

Free forever  ·  No signup required