Timer

Set a countdown timer with presets, keyboard shortcuts, and full-screen mode.

Set Time

Keyboard Shortcuts

SpaceStart / Pause
RReset
FFullscreen
1-6Presets
Coursera Plus
Ad

Coursera Plus

Unlimited access to 7,000+ world-class courses, hands-on projects, and job-ready certificate programs.

Start Learning
⏱ Ready
05:00.00
Total
Remaining
Elapsed
Progress
Documentation

How It Works

Set hours, minutes, and seconds — then hit Start or press Space. The timer counts down using performance.now() for high accuracy and requestAnimationFrame for smooth updates.

When it hits zero, a triple-beep alarm sounds (using the Web Audio API). The progress bar at the bottom drains as time runs out. Press F for full-screen mode — perfect for presentations or focus sessions.

Features

  • Centisecond precision display
  • 6 quick presets (1–60 min)
  • Keyboard shortcuts (Space, R, F, 1-6)
  • Full-screen mode
  • Audible alarm with mute toggle
  • Progress bar

Note: Accuracy depends on your device. No external server is used.

Frequently Asked Questions
Coursera AI Professional CertificateSponsored