Free exam time calculator for invigilators

invigilate with confidence,
clarity and calm

Overseeing an exam room means monitoring times, Access Arrangements and many candidates at once. invigilate handles standard sessions, Extra Time and reading time for CIE, IB and JCQ — so precise end times are one less thing to think about.
New Running multiple papers? Session mode tracks them all.

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No account required · No setup · Works in any browser

invigilators, enabled.

Exam time calculator

Choose the exam board and duration, add any Access Arrangements, and enter a start time. End times appear instantly for standard sessions and every Extra Time variation.

Multiple papers, one session

Session mode tracks every paper in the room simultaneously. Each has its own duration and Access Arrangements — all visible at a glance.

IB reading time

Toggle IB reading time on and off for any paper. The calculator handles the separate reading window and sets writing start and end times automatically.

Every announcement, in sequence

The session timeline shows every upcoming event in order — time checks, Extra Time announcements, exam close — so nothing is missed from start to finish.

Any device, any browser

Works on mobile, tablet, and desktop. No app to install, no account to create. Open invigilate.app and start calculating.

Whiteboard-ready times

Regulations require end times to be displayed in the exam room. invigilate.app shows every time in the format invigilators need.

Start your next session with confidence.

Open invigilate before your next exam session. No account to create, no setup required — the tool is ready when you are.