Class lab
45 minSegments
5
First
8:00
Total
45:00
A 45-minute science lab timer with setup, procedure, observation, data, and cleanup.
Classroom experiment pacing
Free Science Lab Timer
Use a science lab timer for setup, observation, reaction time, station work, data collection, cleanup, and lab rotations. Keep experiments structured and create an XTimer room when a class or lab group needs a shared visible timer.
Built for this job
Students can see exactly how much lab time remains for each step.
Teachers can preserve cleanup and data collection time.
XTimer rooms support shared lab timers across classroom screens or student groups.
Current agenda item
Setup
1/5
8:00
Next
Procedure
Total time
45:00
Use this setup in XTimer
Need a controller link, viewer display, or shared room?
Keep this simple timer for quick work. Move into an XTimer room when one person controls the clock and another screen shows it to a speaker, team, class, or audience.
Presets that match real work
Start from a timer people already understand.
Each preset has a clear use case, duration, and workflow. That makes the page useful for search visitors immediately, and gives professional users a natural path into XTimer rooms when they need separate controller and viewer devices.
Station lab
30 minSegments
4
First
10:00
Total
30:00
A 30-minute station lab timer for rotation, observation, and reset.
Quick observation
10 minTotal
10 min
A 10-minute observation timer for short lab checks and data capture.
Professional setup
Use the simple timer first, then graduate to controlled timing.
Keep cleanup as its own visible segment so the lab ends safely.
Use shorter timers for observation checks and longer timers for full procedures.
Project the timer where groups can see it without crowding one device.
Use an XTimer room when multiple groups or displays need the same science lab timer.
Frequently asked questions
What is a science lab timer?
A science lab timer structures classroom experiments around setup, procedure, observation, data collection, and cleanup.
Can this be used for lab stations?
Yes. Use the station lab preset for rotations or connect this page with the lab station timer for more station-specific work.
Can students see the lab timer?
Yes. Use fullscreen mode on a projector or create an XTimer room when multiple displays need the same lab timer.