Time Perception Test
Without looking at a clock, rely on your sense of time passing.
START HERE
Test your sense of time
Stop when a target duration has passed, reproduce one you just experienced, or compare two intervals.
Remember the target, then stop when it feels right.
SESSION COMPLETE
Your internal clock
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Your saved stats
TARGET
Latest average difference —- Best average difference
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- Compared with last time
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Recent tests
Focus on time itself
No visible timer, clear feedback, and only the details that help with your next attempt.
Three ways to test timing
Test how accurately you can stop at a target, reproduce a recent duration, and distinguish between two intervals.
No visible timing cues
No seconds, hands, or progress bars appear while you judge a duration.
Gradually more challenging
Compare mode narrows the difference between intervals so each round asks for finer judgment.
Clear results after every round
Each round shows the actual duration, the difference, or whether your choice was correct.
Records kept by mode
Your latest result, personal best, and recent tests stay grouped by mode, making progress easy to compare.
Saved on this device
Results stay in this browser, require no account, and can be cleared whenever you want.
Frequently asked questions
How do the three modes differ?
Target asks you to stop at a stated time; Reproduce asks you to repeat a duration you just experienced; Compare asks you to identify the longer of two intervals.
How does Target work?
Remember the target time, then start. The timer stays hidden, so stop when you feel the target has been reached. A smaller difference means you were closer.
How does Reproduce work?
First, watch a circle remain on screen for an unknown duration, then reproduce that duration from memory. The exact time is revealed after the round.
How does Compare work?
Experience interval A and interval B in sequence, then choose the longer one. The difference gets smaller each round, so the choice becomes more subtle.
Can I count during the test?
You can, but avoiding a fixed counting rhythm gives a more natural view of your internal sense of time.
Where are my results saved?
This browser keeps the latest 20 completed sessions for each mode. No account or upload is required, and each mode can be cleared separately.