ClassroomTimers
SettingsFull screen

  

Online digital clock for screens, desks, and classrooms

This free online digital clock turns a projector, classroom display, study desk, or spare monitor into a large time display. Open full screen, show or hide seconds, and toggle day and date independently—with four styles, color and image backgrounds, and no app download required.

Fullscreen online digital clock

  • Enter full screen to hide navigation and keep high-contrast digits large enough for the back of the room, a living-room TV, or a second desktop monitor.
  • When the browser supports it, screen wake lock helps the online digital clock stay visible instead of dimming during lessons or desk work.
  • Tabular numbers stay steady and easy to scan, so the digital clock display remains a shared time reference for the whole class.

Digital clock with seconds, day, and date

  • Turn on Show seconds for HH:MM:SS when transitions or precise checks matter; hide seconds for a calmer always-on classroom or desk clock.
  • Show date and weekday independently for a digital clock with day and date under the time—or hide them when you only need the digits.
  • Switch 12-hour and 24-hour time anytime. Preferences save in this browser after refresh.

Styles from minimal to LED-style segments

  • Choose Minimal, Segment (LED-style), Dot Matrix, or Classroom. Segment leans toward a classic digital LED look without buying a wall clock.
  • Pick from six color backgrounds—including black, graphite, midnight blue, and classroom slate—or three low-distraction image backgrounds.
  • Change style and background without interrupting the running display, so you can match the room or lesson mood in a few taps.

Use Cases

  • Give the whole room one shared digital time during silent work, quizzes, and exams—digits large enough to read from the back row.
  • Keep the online digital clock on a second screen while slides, video, or a whiteboard occupy the main display.
  • Run a calm full-screen clock on a study desk or spare monitor when you need the current time without flip animation or countdown pressure.
  • Turn a tablet or TV into a hallway, office, or studio time display; show day and date when visitors need the calendar as well as the clock.
  • Use wake lock so the screen stays on through long projections, file downloads, or always-on classroom displays—no separate keep-awake app required.
  • Want flip-card motion, multi-city times, or a countdown instead? Open Flip Clock, World Clock, or the Classroom Timer on the home page.

How to set up the online digital clock

  • Open /digital-clock to show your device’s current time in a large digital display.
  • In Settings, pick a style and background, choose 12/24-hour time, and toggle seconds, date, and weekday.
  • Enter full screen for projectors, TVs, or wall-facing tablets; exit full screen to change settings.
  • Display choices save locally in this browser—no account required.

Related classroom tools

Online Digital Clock FAQ

Is this a free online digital clock?
Yes. ClassroomTimers runs in the browser with full screen, optional seconds, day and date, four styles, and saved display settings—no app install or account.
Can I show a digital clock with seconds?
Yes. Turn on Show seconds for HH:MM:SS. Turn seconds off when you want a quieter clock that updates once per minute.
Can I show day and date?
Yes. Show date and weekday independently under the time for a digital clock with day and date, or hide either one.
Does it support full screen?
Yes. Full screen hides chrome and enlarges the digits for projectors, TVs, and spare monitors. Use wake lock when supported so the screen is less likely to sleep.
Can I get an LED-style digital clock look?
Choose the Segment style for an LED-like digital clock font, or try Dot Matrix and Classroom for other high-contrast looks. This is a free web display, not a physical wall clock or downloadable desktop app.
Is this a digital alarm clock?
No. This page shows the current time. For timed classroom activities, use the Classroom Timer. For elapsed time, use the Stopwatch.
Where does the displayed time come from?
The clock uses your device time and time zone. Most devices synchronize automatically through the operating system.
Can the display stay awake?
On supported browsers, use the lightbulb control to request Screen Wake Lock while the page is visible.