What is White Board Clock?

White Board Clock turns your screen into a large, easy-to-read clock, countdown timer, or alarm — ideal for classrooms, meeting rooms, or presentations. Pick a colour theme, choose digital or analog, and go fullscreen for maximum visibility.

Five modes share the same fullscreen surface. Clock mode shows a digital or classic analog face that updates once per second, with 12- or 24-hour format, optional seconds and date line, and five colour themes (classic, cream, midnight, forest, rose). Timer mode counts down from a custom duration or a one-tap preset (1, 5, 10, 15, 30 minutes) and rings a chime when it reaches zero, with a circular progress ring that depletes as time runs out so it reads from across a room. Stopwatch mode counts up from zero with start, pause, and lap splits for timed drills and races. Stages mode runs a named sequence of durations that advances automatically, showing each stage label on screen. Alarm mode lets you set a target time of day and triggers an on-screen alert with a chime when the wall-clock catches up. In the Arabic locale the analog face uses Arabic-Indic numerals so it matches the rest of the interface.

How to use

1. Step 1 — Pick a mode at the top: Clock, Timer, Stopwatch, Stages, or Alarm.
2. Step 2 — For Clock, choose digital or analog and tweak the 12/24-hour, seconds, date, and colour theme. For Timer, enter minutes and seconds or tap a preset. For Alarm, type a target time like 09:45.
3. Step 3 — Tap Fullscreen to fill the display. Timer and Alarm will chime when they fire.

When to use

• Displaying the time on a classroom whiteboard during a timed exam or activity.
• Counting down the last few minutes of a workshop break with a clearly visible timer that everyone in the room can see.
• Setting an alarm for the end of a lesson so the bell rings on-screen and you don't have to keep checking the time.

Result

A teacher opens the Clock in 24-hour digital mode for the exam, then switches to Timer for a 15-minute group exercise, then to Alarm at 11:30 to signal the lesson wrap-up.

FAQ

Does the clock stay accurate when my computer goes to sleep?

It reads your device's system time, so as soon as the computer wakes the clock catches up. There's no internet sync, which means the displayed time is exactly as accurate as your OS clock. Most operating systems sync to NTP servers automatically.

Can I project this onto a screen without browser controls showing?

Yes. Press the fullscreen button or use F11 in most browsers to remove the address bar and tabs. The clock then fills the entire display, which is the intended setup for classrooms and meeting rooms.

Will the analog clock work if I hide the hour numbers?

Yes. Hiding numbers leaves just the tick marks and the three hands. It looks cleaner from a distance and forces students to read the position of the hands instead of relying on the digits, which is handy when teaching kids how to read an analog clock.

Why does the second hand jump on the analog face?

By design. The clock updates once per second to stay locked to the system time, so the second hand snaps to each position instead of sweeping. The same single-second beat keeps the digital readout, timer countdown, and alarm trigger all aligned with each other and with the OS clock.

What time zone does the clock use?

Your local time zone, as configured on the device. If you need to see another city's time you'll need to change the OS clock or use our World Clock tool, which displays multiple zones side by side without touching your system settings.

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