Timer
Set a countdown timer with presets, keyboard shortcuts, and full-screen mode.
Set Time
Keyboard Shortcuts
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.
About the Timer
This timer handles date arithmetic, time zones, calendars, and scheduling utilities. Set a countdown with presets, keyboard shortcuts, full-screen mode, and alarm.
Use for planning events, deadlines, workdays, and time-zone aware calculations.
Adjust the inputs above to model your specific scenario with the Timer.
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