Thirty-Minute Timer
A half-hour timer with a large readout and a clear alarm. For workouts, cooking, screen-time limits, and focused work.
Start the countdown, keep this tab open, and you’ll hear an alarm after exactly 30 minutes. The ring shows progress at a glance.
Space start/pause · R reset · F fullscreen · M mute
What thirty minutes are good for
Workouts
Thirty minutes is the standard length of most guided workouts and the daily activity goal many health bodies recommend.
Cooking and baking
Casseroles, roast chicken thighs, banana bread checks, and slow-simmering sauces.
Screen-time limits
Agree on half an hour of games or video, put the timer on screen, and let the alarm be the bad guy.
Deep work
For people who find 25 minutes too short, thirty is a natural alternative with an easier mental arithmetic.
Tips
- Fullscreen mode is designed to be read from across a room, which helps with kids and TVs.
- The tab title counts down too, so you can keep working in another tab.
Questions
Will a 30-minute timer survive the computer going to sleep?
If the computer sleeps, the browser stops and the alarm cannot play. On wake, the timer recalculates from the clock, so the remaining time will still be correct (or finished). Keep the machine awake for timers you must hear.
Can I set 30 minutes and 30 seconds?
Yes, use the custom timer for any combination of hours, minutes, and seconds.