FREE · AT YOUR OWN PACE

Get to know your sense of time.

How long does a moment feel? Practise estimating short durations, with feedback after every round.

4 rounds · About 2 minutes

Let’s begin

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An hourglass and three smooth stepping stones

Can you feel 10 seconds?

Press Start, then press Stop when you think the time is up. The clock stays hidden until you stop.

4 rounds: 10 seconds, 4 seconds, 7 seconds, and 15 seconds. Try not to count in your head: counting makes it much easier. Tap the button or press Space.

Your own progress

Kept only in this browser, for this task version. Clearing browser data removes it. Retakes can reflect practice rather than change in ability.

Your first session is a starting point. Return to see your own trend.

A small practice, with a clear purpose

Start a short interval and stop when you think the target has passed. Get feedback after every round, then a session summary.

Keep the result in perspective

“Time blindness” is an informal phrase, not a diagnosis here. Feedback may help you learn this task; evidence does not establish that this practice changes everyday time management, attention conditions or general ability. Device delay, counting and distraction affect results.

Sources & method

These activities borrow research methods. They are informal browser activities, not validated clinical assessments.