Challenge Your Internal Clock at Challenge10Seconds.com
The 10s Challenge (hosted at Challenge10Seconds.com) is a digital test of your human time perception. Most people can estimate a second, but stopping a high-precision timer at exactly 10.0000 seconds requires a synchronization of neural pathways and muscle memory.
Our platform uses the Performance.now() API to ensure millisecond accuracy, making this one of the most reliable reaction tests available on the web.
"Becoming the 33th verified master is no easy task. It requires focus, rhythm, and a bit of luck."