30 minute timer
Half an hour: a meeting slot, a workout, a study block or a show's worth of screen time.
A thirty minute countdown, ready to start.
Ready. Press Start.
Other timers
When a 30 minute timer is useful
Half an hour is the default block in most calendars, so this timer is mostly about holding a line: a meeting that must end on time, a study session before a break, a lunch break that should not quietly become an hour, or a child's agreed screen time. Health guidance in several countries suggests around thirty minutes of moderate activity on most days, which makes it a natural length for a walk, a run or a gym circuit.
Over thirty minutes you will almost certainly switch to another tab or app. That is fine: the end time is fixed when you press Start, so the count stays right even though browsers update background tabs less often. Glance at the tab title to see the minutes left.
What can go wrong at this length is the device going to sleep. A sleeping laptop cannot beep. If the alarm matters, plug in and stop the screen from turning off while the timer runs.
How this timer works
- Press Start. The time left also shows in the browser tab, so you can switch tabs.
- Three short beeps play at zero. Sound is only possible after you click, which is why it is armed by the Start button. Check your volume.
- Pause holds the time; Reset returns to the full duration. Change the minutes or seconds boxes for any other length.