One timer. Every screen.
When the host presses start, every participant's phone, tablet and big screen shows the same time. No signup, free to use.
- 1Create a timer
- 2Send participants the link or QR code
- 3Press start
Your room is ready
Open host screenHost on another device
Keep the host link private. Anyone with this link can control the timer.
Where it is used
Read all 8 comic guidesMy timers
Continue a timer saved in this browser.
Device storage settings
Saved in this browser on this device. Not synced to other devices. Private browsing or clearing site data can remove these entries.
Counted from the first save; visits do not extend it. If the browser is closed, cleanup runs on the next visit. Turn off saving on shared PCs.
Lost the host link?
Get a new one with the room code and the recovery password you set on the host screen.
The previous host link and any open host screen will stop working.
What is TimerRoom?
TimerRoom is a web tool that puts one timer, controlled by a host, on many people's screens at once. The host creates a room and sends a link or QR code, and participants see the same remaining time in the browser on a phone, tablet or computer, with no signup and no app to install. Only the host screen can start, pause or change the time; participant screens show the remaining time and any message the host sends. It is for places where several people need to follow the same time: classrooms and exam rooms, stage and backstage, remote meetings and online study groups, debates and talks.
Guides
- Putting a timer on every student's screen
How to prepare and run a timer on students' own devices for group work, quizzes and presentations, when the board is hard to see.
- Events and shows: one clock for the stage and the backstage
Turn the cue sheet into timers and rehearse, so one stage manager runs the clock while speakers, the green room and the sound booth see the same numbers.
- Remote meetings and online classes: a timer for everyone without screen sharing
Keep the same timer on each participant's own screen without screen sharing, including breakout discussions and online exams.
- Handing out a timer to a room full of people with a QR code
Make the QR code from the participant link, size it for the scanning distance, and know what to check when it won't scan.
- Run a debate with fair speaking times
Split opening statements, questions and rebuttals into timers, and show both lecterns the same remaining time, run by the moderator.
- Exam supervision — the same remaining time in every exam room
Press start once in the exam office and have the front screen of every exam room show the same remaining time, from the day before to exam day.
- Online study groups — one timer that rotates hosts without a chairperson
Run Pomodoro sessions and presentation-style study groups on one shared timer, even when a different person hosts each week.
- Presentation practice — building a feel for finishing in three minutes
Practise alone or as a team with the remaining time in view, and write down your overtime until the talk fits.
- Help — the end sound, time differences between screens, and screen roles
Which device plays the end sound, why screens differ by a few seconds, and how to split moderator, speaker and audience screens, all in one place.
- Putting a timer overlay in OBS that you control from your phone
Add a numbers-only timer to OBS as a browser source, and start, extend or switch it from the host screen on your phone.