Hold · How long?

Time estimation game: how long is a second?

Hold is the fourth round. Hold the button for as long as something real lasts, such as a world-record sprint or a pit stop, and let go when you think the time is up. There's no clock on screen: only your own sense of time.

Practise Hold

Rounds from past days, as many as you like. They don't count for your stats.

How it works

How
Press and hold the button for as long as the thing in question lasts, then let go. One try.
Keyboard
Hold the space bar.
Points
100 points within 5% of the real time; 0 points from 2 times longer or shorter.

Questions about Hold

How long can a Hold be?

Between 0.3 and 15 seconds.

How close do I need to be?

Within 5% of the real time gets 100 points. From twice as long or half as long, zero.

What if I let go by accident?

A tap shorter than a quarter of a second doesn't count, and you can try again.