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Time Estimation Test

How Accurate Is Your Internal Clock?
⚡ Quick Start
Watch the orb glow, then estimate how long it lasted, reproduce the duration, or compare two glows
Please don't count seconds — this test measures your felt sense of time, and counting defeats the point. Go by feel
Get your Internal Clock Score, a task-by-task breakdown, and whether time feels longer or shorter to you than it really is
How long did the orb glow?
2.5s
3.7s
5.0s
No timer. No counting. Just your sense of time.
Trial 1 of 6Estimation
Watch how long the orb glows…
3.0s
Result

Your Result

Internal Clock Score
78
out of 100
Finely Tuned
Task Breakdown
👁️ Estimation accuracy
✋ Reproduction accuracy
⚖️ Comparisons correct
Your sense of time shifts with attention, mood, and energy — the same person can score differently in the morning and at night. Retest at different times of day and see when your internal clock is at its sharpest.
Back to Start
📊 Recent Results
📖 Detailed Instructions

What this is: A test of time perception — how accurately your brain tracks durations without a clock. It uses three classic interval-timing tasks, all built around a glowing orb.

The three tasks:

Why you shouldn't count: This test measures your felt sense of time — your internal clock — and counting turns it into a rhythm exercise instead. Durations are random and non-round (3.7 seconds, 5.2 seconds) to make counting less comfortable, but the real rule is simply: don't. If you enjoy the counting-and-precision challenge, that's a different skill — our stopwatch-style game is built exactly for it.

Your results: Estimation and reproduction are scored by how close you land to the true duration; comparison is scored by correct picks. The overall Internal Clock Score combines all three. You'll also see your tendency — whether durations generally feel longer or shorter to you than they really are.

Tips: