radialtimers.com
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20 Second Timer
This timer draws 20 seconds as 20 concentric rings; one empties every 1 second, so a glance shows how far along you are without reading a digit. It chimes at zero, keeps counting in a background tab, runs fullscreen, and exports as a video with a free account. Handy for a 20-second hand wash, one round of 4-7-8 breathing, or a hide-and-seek count to twenty.
free account · supporters render 4K, 60 fps, every frame and style
How long is each ring?
1 second. The dial always has 20 rings, and this timer runs 20 seconds.
Does it chime at the end?
Yes. A clear double chime marks zero, even from a background tab, and the rings themselves stay silent so the countdown never interrupts you. Exported videos add a soft tick as each ring finishes.
Embed this timer
Use as a stream overlay
Add it as a browser source in OBS; the background stays transparent. Change t for any length.