Traffic Light Timer
Traffic light mode ready.
Keys: Space start/pause · R reset
About the Traffic Light Timer
Traffic light colors are one of the first rule systems children memorize, which makes them powerful timers for classrooms, crossing guard practice, and self-regulation drills. The traffic light timer moves through green work time, yellow warning, and red stop phases so students learn to pace activity without constant verbal reminders. Physical education teachers use short green bursts for relay stations while counselors teach pause skills on red. Green thirty-second and yellow fifteen-second presets mirror common crossing drills, and custom lengths support longer independent work followed by a brief yellow buffer before cleanup.
How to use it
- Choose a preset such as green thirty seconds or build a custom multi-phase countdown.
- Describe what green, yellow, and red mean in your specific lesson before starting.
- Display the timer where every student can see the active light color.
- Press Start and coach behavior during yellow rather than waiting for red to surprise the room.
- Reset between rotations so each group gets a fresh green phase.
Good to know
The countdown follows your device clock while this tab stays open. If the phone locks or the browser pauses the tab, the alarm can be late. Keep the screen awake when children are waiting on it.
Frequently asked questions
Is the Traffic Light Timer free?
Yes. You can use it in your browser with no account and no download.
What do the three colors mean on this timer?
Green is active work time, yellow is a finish-up warning, and red is a full stop or listen phase.
Can I change how long each light lasts?
Yes. Pick presets or enter custom seconds for each phase sequence.
Is this useful for crossing guard lessons?
Yes. Short green and yellow presets mirror common street-crossing practice drills.
Will color-blind students be left out?
Pair colors with position labels and verbal cues; digits also show remaining seconds.
Related
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