Visual Timer

Bomb Timer

Share to Google ClassroomPosts this timer, set to 1 minute, to your class.

Share a timer: add ?t= and the number of seconds to the address, e.g. visualtimer.org/?t=420 for 7 minutes.

The cartoon fuse gets shorter during the countdown, and a “BOOM!” graphic appears at the end. Use this display for a timed game or challenge when the group is comfortable with the theme.

Set any time from a few seconds to an hour. Turn the sound on for a chime at the end, and go full screen to show it on the board.

Run a timed game round

  1. Explain the task before you start, such as naming items in a category or answering one quiz question.
  2. Choose a time that fits the round. Try 30 seconds for a short turn or 2 minutes for a team task; then press Start.
  3. Use fullscreen on a supported browser for a shared display. Pause when you need to explain a rule; Reset returns to the selected duration.
  4. When the round ends, the bomb illustration shows “BOOM!” and the timer shows “Time’s up!”. Press Reset to prepare another round and Start when everyone is ready.

Know what the sound and animation do

The ending is a cartoon graphic. With sound enabled, the timer attempts to play a chime, not a recorded explosion. The speaker button turns the chime off; it does not remove the final graphic. Test a short round before projecting it.

Choose the sand timer or plain visual timer if a bomb graphic does not suit your group. The animation is a display choice, not a claim that a timed race improves learning or behavior.

Ideas for using it

How to use the timer

  1. Tap a time (or type your own, like 7, 2:30 or 1h 15m) and press Start.
  2. Use Full screen on a supported browser to show the timer on a projector, smartboard or TV. Check the actual display before relying on it.
  3. When the time is up, the timer shows Time’s up! and attempts to play a chime if sound is on. Keep the device awake and test the audio first. Reset prepares another round.

Timers by length

Quick countdowns · up to 2 minutes

Short activities · 3–20 minutes

Longer sessions · 25 minutes and up

Add this bomb timer to your website

Teachers can put it on a class website or Google Sites page: paste this free, ad-free embed code into a page that allows iframes. Full screen also depends on the host page and browser allowing it. Check the preview and adjust the iframe height in your site editor if it is clipped; test the published page before an activity.

Preview the embed ↗

More timers

Countdowns

Frequently asked questions

Is the bomb timer scary for young kids?

It shows a cartoon bomb and a “BOOM!” graphic, with an optional chime rather than a recorded explosion. Check whether the theme suits your group; use the pie or sand style if it does not.

Can I set a 10 minute bomb timer?

Yes. Tap 10 min (or type any time) and press Start.