Timing & precision

Time sense

Stop each hidden timer at the displayed duration.

Ready when you are.

How to play

Complete 15 targets: 1, 1, 1, 2, 2, 2, 3, 5, 6, 0.5, 0.5, 0.3, 0.2, 0.2 and 0.1 seconds. Press a box to start and again to stop. The first 5 have guides reaching 100%, 75%, 50%, 50% and 25% of their duration.

Controls

Use touch or a mouse. Keyboard controls appear inside games that support them.

About your score

For actual time A and target T, each score is 100% within 0.01 seconds; otherwise 100×A/T when early, 100×(2−A/T) up to 2T, and 100×T/A after 2T. The 15-score mean is rounded to 2 decimals. This reference formula jumps above 2T; the exact signed error is shown separately.

Scores describe this game on your device. They are not a medical test or a comparison with everyone else.

Records stay in this browser. Clearing browser data removes them.

Records are separated by rules, mode, input method and screen width.

Time sense

Your result

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