How it works
Time Sense tests your internal clock — the sense that lets you guess how long a minute has passed without checking a watch. Each round starts by showing you a duration: a bar fills from empty to full over an exact stretch of time, with the number of seconds ticking up alongside it, marked by a soft tone at the start and a firmer one the instant it completes. The bar then resets, and it's your turn — press and hold a button, trying to release at the moment you believe matches what you just watched.
Your accuracy is the gap between the duration you held and the one you were shown, measured as a percentage of the target — a 240ms miss on a 2.40-second target and the same 240ms miss on a 6-second target don't score the same, because the second is a much smaller fraction of its target. This is scalar timing: real interval estimation gets proportionally harder to nail as the interval grows, and Time Sense's scoring reflects that honestly instead of treating every millisecond as equally costly everywhere. That accuracy feeds the same scoring curve as every game here: 100% accuracy is a full 10, 50% accuracy or worse is a 0, rounded to two decimal places.
Difficulty controls both the target range and how much feedback you get while holding. Easy draws from a short 1.50–3.00 second range and shows a soft glow that grows the longer you hold — reassurance without numbers. Medium stretches to 1.00–4.50 seconds and removes even that glow, leaving nothing but the pressed button and your own count. Hard stretches further still, to 2.00–6.00 seconds, and adds a background pulse breathing at a fixed, wrong tempo, built specifically to throw off whatever rhythm you were holding in your head.