Blind Timer

How good is your internal clock? Press START, then press STOP when you think the target time has passed — without seeing a timer.

1You'll see a target time (e.g. 5 seconds)
2Press START and count in your head
3Press STOP when you think time's up

~30 seconds · 3 rounds · No sign-in required

1 / 3
5 seconds
Tap the button to start
— ms
Average Error
LowerAverageHigher
📊 Your Rounds
📏 Score Ranges
Metronome
< 200ms
Top 5%
Accurate
200–500ms
Top 20%
Average
500–1000ms
Most adults
Needs Work
> 1000ms
Bottom 25%
⏱️ About This Test

This test measures time perception — your brain's internal clock accuracy. It involves the supplementary motor area and basal ganglia.

Musicians and athletes often have superior time estimation abilities.

⚙️ What Affects It?
🎵MusicMusical training sharpens internal timing.
😰AnxietyStress distorts time perception — time feels faster.
☕StimulantsCaffeine speeds up your internal clock.
🧘MeditationMindfulness improves temporal awareness.