Exam cues
Sound and warning cues stay secondary to the exam countdown.
Custom duration
Exam Timer (Fullscreen Countdown)
Run timed practice with a calm fullscreen countdown, presets, optional warning beeps, and keyboard shortcuts.
How it works
Exam Timer is a straight, exam-style countdown. You choose a duration, press Start, and get a large, readable clock you can run in fullscreen without distractions. It is built for timed sections, mock exams, and practice sets where you want the time to be obvious and the controls to be simple.
This page is not a scheduling tool and it does not try to manage your study plan. It focuses on what you need in the moment: preset durations, custom minutes, clean start/pause/reset, optional sound cues, and keyboard shortcuts that work well in a quiet practice setup. If you want a quiet room, turn sound off and it becomes a purely visual timer.
The timer display automatically fits itself to the available space, so it stays readable in normal mode and in fullscreen. If you are practicing with a second monitor, a projector, or screen share, fullscreen is usually the best experience.
- 1) Choose a preset duration (for example 25m, 45m, 75m) or type custom minutes.
- 2) Decide whether you want sound. If yes, turn on Sound and optionally enable Warnings and Final beeps.
- 3) Press Start (or Space) to run. Press again to pause.
- 4) Press Reset (or R) to return to the full duration.
- 5) Use Fullscreen (or F) for a large display. Exit with Esc.
Reset always returns you to the full selected duration, not the moment you started. Example: if you set 35 minutes and you pause at 12:08 remaining, Reset returns you to 35:00 so you can rerun the same section cleanly.
- Pick the duration first. While running, duration controls are locked to prevent accidental changes mid-section.
- If you want pacing cues, enable Warnings and choose 5m and/or 1m.
- If you want a sharper finish cue, enable Final beeps (last 5 seconds).
- Test audio once before you rely on it. Some browsers require a click before audio plays.
- If shortcuts do nothing, click the timer card once so it has focus. Shortcuts do not fire while typing in inputs.
What you can do on this page
The core job is simple: count down from a duration you choose. You can set that duration with presets (from 5 minutes up to 180 minutes) or with custom minutes (from 1 to 360). Once you start, the timer shows a clear time string like 25:00 or 1:15:00 for longer sessions. If there is an hour component, it appears automatically. That way you do not have to interpret large minute counts during a timed section.
Sound is optional and intentionally restrained. If Sound is on, you can use Warnings as pacing cues at 5 minutes and 1 minute remaining. These are single beeps, not repeated reminders. Final beeps are a separate toggle that adds short beeps during the last 5 seconds, plus the finish beep at zero. If you are in a quiet room, leave Sound off and the timer stays fully silent.
Fullscreen mode is designed for readability and quick control. The top bar includes Start/Pause and Reset, and the time display itself can be clicked or tapped to start or pause. That matters in practice sessions because you can keep your workflow simple: one key (Space) and one fallback (tap the time) if you are on a touch device.
Scenarios with examples (real outputs and what you will see)
These scenarios are written in the same shape you will experience on the page: a selected duration, the exact on-screen time format, and the effects of warnings, final beeps, pause, and reset. The numbers below are realistic and reflect what users actually watch while timing a section.
If you use this page often, shortcuts are the fastest path. Press Space to start/pause, R to reset, F to toggle fullscreen, and Esc to exit. Shortcuts only trigger when the timer card has focus. They are ignored while you are typing in an input field, which prevents accidental starts or resets when you are changing minutes.
If you need a different kind of timing, use the closest match below.
Technical details (timing, audio, fullscreen, background tabs)Notes that matter when you rely on exact behavior▼
When you press Start, the timer targets an internal end time based on elapsed time. This keeps the countdown steady even if a frame is delayed. The display updates frequently, but the value is tied to real elapsed time, not a fragile once-per-second interval.
The minutes input and preset buttons are disabled while running. That is intentional. It prevents accidental changes to a timed section once it has started. Pause or reset before changing minutes.
Sound uses browser audio APIs. Some browsers block audio until a user gesture (click/tap). If you do not hear beeps, click Start once and try again. Warning beeps only fire when Sound and Warnings are enabled. Final beeps only run in the last 5 seconds and only when Sound is enabled.
Fullscreen uses the browser Fullscreen API. Most browsers require a user gesture to enter fullscreen. Exit with Esc or the Exit button in the top bar.
Browsers may throttle background tabs to save power. The timer will catch up when you return, but the visual updates can look less smooth while hidden. If you care about a smooth visual countdown, keep the tab active or use fullscreen.
Keyboard shortcuts
Click the timer card once, then use the keyboard to control it. Shortcuts won’t trigger while you’re typing in an input, select, textarea, or editable field.
| Key | Action |
|---|---|
| Space | Start / Pause the timer |
| R | Reset back to the selected duration |
| F | Toggle fullscreen |
| Esc | Exit fullscreen |
Common scenarios
Use this page for a clean exam-style countdown with presets, custom minutes, fullscreen, optional sound warnings, and keyboard shortcuts.
Frequently Asked Questions
What does this Exam Timer do?
How do I set the exam duration?
How do Start, Pause, and Reset work?
What are the warning beeps?
What are “Final beeps”?
Does the timer keep running if I switch tabs or lock my device?
How do I use fullscreen mode?
What keyboard shortcuts are supported?
Why don’t I hear sound?
What’s the maximum duration I can set?
Can I use this for a real exam?
Which related tool should I use instead?
Exam Timer at a glance
Fullscreen countdown • Presets + custom minutes • Start/pause + reset • Optional sound + warnings • Final beeps • Keyboard shortcuts
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Exam Timer at a glance
Fullscreen countdown • Presets + custom minutes • Start/pause + reset • Optional sound + warnings • Final beeps • Keyboard shortcuts
- 1) Set the time: choose a preset or enter custom minutes for your section.
- 2) Start: press Start (or Space). Go fullscreen if you want a clean display.
- 3) Pace: optionally enable warnings (5m and/or 1m). Reset to rerun the same section.
- Timed section: set the exact section length (for example, 25m or 35m), enable a 5m warning, run fullscreen.
- Practice set: choose 10m to 20m for drills, keep sound off for quiet focus.
- Proctored-style: fullscreen on a second monitor, keyboard control only.
- Break between sections: switch to a short preset (5m or 10m), then reset back to your next section time.
Details and shortcuts▼
Space start/pause · R reset · F fullscreen · Esc exit fullscreen.
If shortcuts do not work, click/tap the timer card once so it has focus.
This timer counts down to zero based on elapsed time while the page is open. If your device sleeps, the display will resume when you wake it.
Some browsers require a click/tap before audio can play. If you do not hear beeps, press Start once, then toggle Sound off and on.
Fullscreen requires a user gesture in most browsers. In fullscreen, you can click/tap the time display to start or pause quickly.
Sound and warning toggles can be changed while running. The duration (minutes) is disabled while running to prevent accidental changes mid-section.