SettingsFull screen
Online digital clock for screens, desks, and classrooms
ClassroomTimers is a free online digital clock with high-contrast digits—no download or account required. Open full screen on a projector or desk, show or hide seconds, and toggle day and date independently.
Maintained by the ClassroomTimers team ·
How does fullscreen mode work on this 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.
Can this digital clock show 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.
Which digital clock styles are available?
- Choose Minimal, Segment (LED-style), Dot Matrix, or Classroom. Segment leans toward a classic digital LED look without buying a wall clock.
- Choose high-contrast dark or light colors, or classroom-friendly image backgrounds with both calm and bright options.
- Change style and background without interrupting the running display, so you can match the room or lesson mood in a few taps.
Where is an online digital clock most useful?
- 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
- TimerStart a classroom countdown with presets, projector mode, and wake lock.
- World ClockWorld clock with a live map, multi-city times, and day-night context.
- Flip ClockOnline flip clock with optional seconds and card styles for desks and classrooms.
- StopwatchOnline stopwatch with laps, adjustable precision, and wake lock.
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.