On Time - Timer Game

How well do you know 10 seconds? Test your internal clock in this minimalist timing challenge. Simple to play, impossible to perfect.

How well do you know 10 seconds?

On Time is a minimalist timing game that tests your internal clock. Press START, count to ten in your head, and press STOP. That's it. Simple to learn, impossible to master.

Your goal: stop the timer as close to 10.00 seconds as possible — without looking at the numbers ticking up.

FEATURES • One-tap gameplay — Start, Stop, Retry • Precision feedback — see exactly how far off you were • Hidden achievements — discover 30+ secret challenges beyond the 10-second goal • Personal best tracking — chase your closest attempt • Clean, distraction-free design • No ads. No in-app purchases. No data collection.

Can you hit 10.00 on the dot?