Timers & Clocks
45 minute timer
Forty-five minutes is a typical lesson, an exam section, or a long focus session.
45:00
Presets
- Runs in your browser
- No account required
- Free to use
What a 45 minute timer is good for
Lessons and exams
Many school periods and exam papers run for 45 minutes.
Deep work
A longer focus block for work that takes a while to get into.
Training sessions
A full gym session or sports practice.
Tip: For exams on a projector, the classroom timer shows colour changes as time runs short.
Questions
Is it reliable for a timed exam?
Yes. It measures against the device clock, does not drift, and keeps the screen awake while running where supported.
Does the 45 minute timer keep going in a background tab?
Yes. It measures elapsed time against your device clock rather than counting ticks, so browser throttling in a background tab cannot slow it down. Keep the tab open for the alarm to sound.
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