30 minute timer

Runs in your browser. Nothing you type is sent anywhere.

30 minutes left.

Like 5m, 90s, or 1:30
View

How to use the 30 minute timer

  1. The timer opens at thirty minutes. Press Start, or the space bar.
  2. Leave it on screen, or switch tabs. The tab title shows the time left.
  3. Use + and − to add or take off a minute as plans change.
  4. At zero the alarm sounds. Press Stop alarm, then R to reset.

What a 30 minute timer is good for

  • Half a lesson

    Split an hour's lesson into two halves, or give thirty minutes to the main task. Large digits on the board show the class where they are.

  • Workouts

    Thirty minutes of walking, cycling, or a home workout. Prop up your phone or put the laptop across the room; the digits are big enough to read.

  • Cooking

    Many bakes, roasts, and rice dishes need about thirty minutes. Start the timer when the dish goes in and get on with something else.

Questions

Will the alarm go off if my laptop screen turns off?

The timer keeps the screen awake while it runs, in browsers that support it. If the laptop sleeps anyway, for example with the lid closed, the browser stops and the alarm can't sound. Keep the lid open and the laptop plugged in.

Can I use it on my phone in the kitchen?

Yes. The digits fill a phone screen and the screen stays on while the timer runs, in browsers that support it. On iPhone, keep Safari on this page, because it pauses hidden tabs.

How do I time a 30-minute workout with rounds?

Use this page for the total time and glance at the digits between exercises. Press Pause if you need to stop, and Resume to carry on.

The lesson starts late. Can I make it shorter?

Press −1 min, or the − key, once for each minute lost, before or after you press Start. Or type a time like 25m in the Time box and press Set.