In short
An exam timer runs a paper to its exact length under real conditions. This page opens at 60 minutes, runs fullscreen, and has a silent mode so nothing startles a room mid-question. For 25% extra time, set the adjusted total — a 90 minute paper becomes 113 minutes.
- Default
- 60 minutes
- Silent mode
- Yes — visual countdown with no alarm
- 25% extra time on 90 minutes
- 113 minutes
- Pacing guide
- Work out minutes per mark before starting
Practise the clock, not just the content
Most marks lost to timing are lost in the same way: too long on the first section, a rushed final question, and a blank page where an easy one should have been. That is a practised skill, and it can only be practised against a real clock.
Set the timer for the true paper length. Work out the minutes per mark before you start — a 90 minute, 75 mark paper gives about 70 seconds a mark once you allow for reading — and check yourself against the progress bar at each section.
Setting up a mock at home or in class
- Set the exact length of the paper, plus reading time if the exam allows it.
- Fullscreen on a projector, or on a laptop at the front of the desk.
- Press Sound off if the alarm would startle people mid-question.
- Start on the word 'begin' and do not pause, even for questions.
- Stop dead at zero. Marking what you actually finished is the point of the exercise.
Extra time and access arrangements
If a student has 25% extra time, set the adjusted length rather than trying to add it later — a 90 minute paper becomes 113 minutes. The +1 minute button is there for the rare case where you need to make up for an interruption, and it never resets the countdown.
Questions about the exam timer
Does the timer show a warning near the end?
The bar and tick strip make the last stretch obvious, and there are three quiet beeps in the final three seconds unless sound is off. Many teachers also start a fresh short timer for the last ten minutes.
Can students see it on their own devices?
Yes — send them the link to this page. Everyone will need to press start themselves, so for a shared start, one projected timer is fairer.
Will it still work if I lock my phone?
Yes. Locking the screen does not pause anything — the remaining time is worked out from the clock, not from how long the page has been visible. While the timer runs the site also asks your phone to keep the screen awake, so it will not dim on you mid-countdown.
Is there a limit on how many timers I can run?
No. Open the page in as many tabs as you like — each one counts independently and shows its own remaining time in its tab title.
Related timers
- 60 minute timerCounts down 60 minutes and rings.
- 45 minute timerCounts down 45 minutes and rings.
- Classroom timerBig visible countdown for a whole room.
- Study timerTime a revision block and keep the phone face down.
- 30 minute timerCounts down 30 minutes and rings.
- Fullscreen timerGiant digits for a room, a screen or a projector.