Time Lab
Free games and tools to test how well you sense, react to, and keep time.
Reaction Time
Test your reflexes with flash reactions and precision stops
Not played yet
F1 Start Lights
React the instant all five lights go out
Not played yet
Snooze Smash
Smash the ringing alarms, let the moons sleep
Not played yet
Impulse Control
Go/No-Go and Stroop — react fast, hold back
Not played yet
Aim Trainer
Hit every target as fast as you can
Not played yet
Hand Angle Duel
What angle do the clock hands make?
Not played yet
Time Math Attack
Add, subtract and convert time against the clock
Not played yet
Chrono Juggler
Stop several blind timers at their targets
Not played yet
Time Accuracy
Stop a timer at exactly the target time
Not played yet
Time Perception
How well can you feel the passage of time?
Not played yet
Rhythm Consistency
Test your internal 1-second timing stability
Not played yet
Binary Decode
Read time from a binary clock display
Not played yet
Time & Date Calculator
Add & subtract durations and dates
Age Calculator
Your exact age, days & milestones
World Clock
Compare live times across cities
More time tools
Features
Frequently Asked Questions
What games are in Time Lab?
Twelve free experiments, each testing a different part of how you handle time — your reflexes and reaction speed, your impulse control, your ability to read a clock and do time math, your sense of rhythm, and how accurately you can estimate a duration.
Are the Time Lab games free?
Yes — every Time Lab game is completely free and runs right in your browser with no sign-up. Just pick a game and play.
What is a good reaction time?
The average human reaction time to a visual stimulus is 200-300 milliseconds. Anything under 200ms is considered fast — competitive gamers often score 150-180ms. Reaction time is influenced by age, sleep, alertness, and practice. Regular testing can help you track improvements over time.
Are these tests accurate?
Yes. All timing measurements use performance.now(), which provides sub-millisecond precision independent of system clock changes. This is the same high-resolution timer used in professional benchmarking tools. Results are comparable to lab-grade reaction time measurements.
Are my best scores saved?
Yes. Your best score for each game is stored locally in your browser so you can track your progress. Nothing is uploaded — your results stay on your device.
Do the games work on phones?
Yes. Every game is touch-friendly and works on phones, tablets, laptops and desktops. Reflex games like Aim Trainer and F1 Start Lights play especially well on a touchscreen.