See the target before the round, then press Stop at the moment you believe that duration has passed.
About Timelo
How accurate is your inner clock?
Timelo is a free precision game that hides the clock and asks you to feel time passing. The closer you are, the better your result.
Simple idea, precise result
Every round begins with a clear 3-2-1 countdown. Once it starts, the clock disappears. Stop when you believe the target has been reached, or estimate the hidden duration after the round ends. Timelo then shows the actual time, your answer, the exact error and a score.
Let an unknown duration run, then enter your estimate to three decimal places.
Create a room for 2–8 players and compare total accuracy across five shared rounds.
Fair timing without unnecessary data
Stop on Target uses a precise monotonic clock on your device. Guess Hidden Time uses a server-held target so the answer is not exposed in the page. Daily attempts are limited per device, while names are used only where a leaderboard or room needs to identify a player.
Made for quick competition
Timelo needs no specialist knowledge. A solo round takes only a few seconds, the Daily Challenge gives everyone a shared target and a room code turns the same idea into a simple party game.
Trust your sense of timeChoose a mode and see how close you can get.
Play Timelo