45 minute timer

Runs in your browser. Nothing you type is sent anywhere.

45 minutes left.

Like 5m, 90s, or 1:30
View

How to use the 45 minute timer

  1. The timer opens at forty-five minutes. Press Start, or the space bar, as the period begins.
  2. The clock time it will end appears under the digits, like "Ends at 10:45".
  3. Press F to show it full screen on the board.
  4. At zero the alarm sounds. Press Stop alarm to quiet it.

What a 45 minute timer is good for

  • One class period

    Many schools run lessons of about forty-five minutes. Start the timer with the bell, and the class can see how long is left and when the period ends.

  • Exam sections

    Reading, listening, and writing papers often have sections of around forty-five minutes. Write the end time on the board, or let the screen show it.

  • Long focused tasks

    A forty-five-minute block for writing, revision, or practice, with a short break after.

Questions

Why does this page show the end time?

In a lesson or an exam, people plan by the clock ("we finish at 10:45"). The end time is shown under the digits while the timer runs, in your device's clock format. If you pause, the end time moves when you resume.

How should I use it for an exam?

Press Start when candidates begin and leave it full screen (press F). Tick "Count up after zero" if you allow extra time and need to see how much was used. Check your exam board's rules on timing devices.

Can I give a "15 minutes left" warning?

Keep an eye on the digits; the timer doesn't announce that warning yet. In the last ten seconds the digits turn yellow, and the alarm sounds at zero.

Will the projector screen stay on for the whole period?

The page asks the browser to keep the screen awake while the timer runs or the page is full screen, in browsers that support it. A small "Screen stays on" note shows when it's working.