Timer tools · Teaching & presenting
Visual Classroom Timer
A clear next step for the whole room.
Ready when you are
Reset this session and its round marks?
Your session at a glance
See every step
Set your rhythm
Preview updates as you edit. Reset an active session before changing its plan.
Make it sound like you
Twelve synthesized sounds. Test your volume before starting. Keep this page open; sleeping devices and background tabs can prevent timely alerts.
Screen awake is off.
Settings and sessions are saved on this device.
How to use the visual classroom timer
Add lesson activities and their lengths, then put the visual timer in fullscreen. Choose whether each activity begins automatically or waits for you. Hide the digits if you prefer the shrinking disc as the main visual cue.
The current activity and next activity remain visible. Use Next step to move on early. A manual transition waits without consuming the next activity’s time, which is useful when a discussion or instruction needs a little flexibility.
Can I run a lesson without sound or numerical countdowns?
Yes. Mute sound and enable Hide timer digits. The activity name, progress disc, stage count, and next activity still communicate the lesson’s progress. An explicit Read remaining time button remains available.
What happens if I refresh or switch tabs?
Running timers are recovered from saved timestamps after a refresh. They catch up to the elapsed schedule without replaying a stream of missed sounds. In manual-transition mode, the next step waits for you. Keep the page open and test your sound: background throttling, sleeping devices, or closing the browser can delay or prevent an alert. Changing the device clock can affect recovery after a reload.
Do I need an account?
No. Settings and the current session stay in this browser. They are not synced to an account. Clearing TimeCubby data removes them. Sounds are generated locally, with no audio files downloaded or uploaded.