120 minute timer
A 120 minute countdown timer for the projector: big digits, a quiet chime, warning colours and full screen. Good for block schedules, exams and long projects.
2:00:00
Keys: Space start or pause · R reset · ← → 30 seconds · 1–8 the presets · M sound · F full screen
How to use it
- The timer is already set to 2 hours. Press Start, or tap the Space bar.
- Press F to fill the screen. The buttons fade away until you move the mouse; press Esc to come back.
- Add or take off 30 seconds with the arrow keys. If you need a different length, press a preset or choose Custom.
Ideas for class
- Time a two-hour exam session with the clock on the projector.
- Run a long project block with three planned breaks.
- Set a workshop with parts at 30-minute intervals.
- Use it for a long lab or art studio session.
- Show the time left for a rehearsal or event.
- Use it for an afternoon work session with a check-in each half hour.
- Split 120 minutes into 84 to work and 36 to share: press Start, and pause at 84:00 elapsed to switch.
Related
Questions
Can I stop a 2 hour timer and restart it later?
Press Pause and the time left stays where it is as long as the page stays open. If you close the page, the timer does not remember the time left, so keep the tab open or note the time.
Will a 120 minute timer keep running if the computer goes to sleep?
The timer counts by the clock, not by ticks, so the time shown is right whenever you look. But if the computer sleeps the whole machine, nothing can play the chime. For a 120 minute block, turn off sleep in your computer's power settings, or keep the screen awake by leaving the page in full screen.
How do I change the 120 minute timer?
Press a preset button or choose Custom and type a length such as 7:30 or 90s. The page address updates to carry the new length, so you can bookmark it or share it. This page always opens at 2 hours.
Will the 120 minute timer keep the right time if the tab is in the background?
Yes. The countdown compares the clock when you pressed Start with the clock now, so it stays right when a tab sleeps. When it reaches zero it plays a short, soft chime (press M to turn the sound off) and the page title in the tab says the time is up.
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