Countdown
30 Minute Countdown
Half an hour, counting down where everyone can see it. Workshops, exams, cooking and sport.
30 Minute Countdown
30:00
Ready
- Ends at
- —
- Elapsed
- 00:00
Settings
Space start or pause · R reset · F full screen
What this one is for
- Half-hour blocks
- Stays accurate in a background tab
- Loud, clear alarm
Half an hour on a wall or a projector, for exams, workshops and anything where several people need to work to the same number. It opens at 30:00; change that with the chips under the dial.
Worth knowing
- Half an hour for workshops, exams, sport and cooking.
- It reads the system clock, so it will not drift over a long run.
- Announce the halfway point; groups pace themselves badly without it.
Getting the most from the 30 minute countdown
- Put it where the room can see itFull screen with F, or share the tab in a call. Everyone working to the same visible number removes the awkwardness.
- Say what happens at zeroA countdown without a stated consequence is decoration. Announce it before you start.
- Extend it openly if you mustThe plus one minute button adds time without resetting, so the room can see exactly what changed.
Related timers
- Countdown Timer
- 5 Minute Countdown
- 10 Minute Countdown
- 15 Minute Countdown
- 20 Minute Countdown
- 45 Minute Countdown
- 60 Minute Countdown
- 1 Hour Countdown
Questions people ask
Does the countdown keep time if I switch tabs?
Yes. It works from the system clock rather than counting frames, so switching tabs or locking the screen does not make it drift.
Can I show the 30 minute countdown on a projector?
Yes. Open it on the presenting screen and press F for edge-to-edge digits at high contrast.
Does the 30 minute countdown work offline?
After your first visit, yes. The page is cached by your browser, so it opens and runs without a connection.