Countdown Timer
A visual countdown timer with a donut progress ring, full screen mode, and customizable colors.
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Appearance
Background
Color
Glow effect
Glowing ring and numbers
Pulsate near end
Final warning (red)
Switches red at last 10%
About this tool
Set any duration in hours, minutes, and seconds, or choose from common presets. Watch time count down inside a smooth donut ring, switch to full screen mode for presentations or workouts, and customize the color scheme and warning effects to match your style.
How to use
1
Enter the values in the input fields above.
2
Click the calculate or generate button to see your result.
3
Use the copy button to copy the result, or reset to start over.