Guess the Interval β

Check your clock in brain!

This app is very simple app for checking your brain's clock.

Select time interval from radio buttons and push "Start" button, then the count down will be begun.
After the count down, push the button on the screen the time you feel the time interval is passed.

Then the result is shown in the screen, which is the time difference between the actual time interval and yours.

The score is the time difference.

The smaller the numerical value is, the more precise your brain is.