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Exam clock

Project the time, the time remaining and the finish time of each group of candidates. Extra time is calculated for you. The “Timer” tab adds a visual classroom timer with phase sequences. Free, no sign-up, nothing is sent to a server.

How does it work?

The visual classroom timer

The Timer tab shows a coloured disc that shrinks as time passes: pupils see at a glance how much time is left, even from the back of the room and without reading a clock.

How is extra time calculated?

Extra time is a share of the exam duration added on top of it: 25% of 2 hours is 30 minutes. By default, the tool rounds the extra time up to the next minute.

Exam duration+25%+33% (one third)+50%
30 min+8 min (38 min)+10 min (40 min)+15 min (45 min)
1 h+15 min (1 h 15)+20 min (1 h 20)+30 min (1 h 30)
1 h 30+23 min (1 h 53)+30 min (2 h)+45 min (2 h 15)
2 h+30 min (2 h 30)+40 min (2 h 40)+1 h (3 h)
3 h+45 min (3 h 45)+1 h (4 h)+1 h 30 (4 h 30)

Always follow the rules of your exam board for access arrangements and rest breaks.

What if the page reloads during the exam?

Nothing is lost. The countdowns are based on the computer's clock, not on an internal counter: after a reload, sleep mode or a tab change, the time shown stays exact. During the exam, the tool also keeps the screen awake when the browser allows it.

Is my data sent anywhere?

No. Settings, line names and the log stay in your browser. To protect candidates' privacy, use a desk number or a group name rather than a name.

Example: a 2-hour exam with access arrangements

Start at 8:00, duration 2 h: planned end 10:00. Add one line per arrangement:

If a fire alarm stops the exam for 10 minutes, the global pause halts every countdown and shifts all end times. If one candidate leaves for a medical reason, the individual pause only shifts their line.

Projecting the screen

The visual timer in class

The “Timer” tab shows a coloured disc that empties: students, even young ones, see time passing without reading a clock. Phase sequences chain several steps, for example:

Save your sequences to reuse them from lesson to lesson; a soft sound and a flash mark the end of each phase.

Good to know

Access arrangements (extra time, a scribe, a separate room) are granted by the exam authority on medical advice: the tool applies the extra time you enter, it does not decide it. Nothing is sent: the screen works offline once the page has loaded. To prepare the paper itself, see the MCQ generator.

Guide written and checked by Erwan Hautot · updated 30 October 2026.