24 Minute Timer

Press Start to count down 24 minutes.

This free 24 minute timer counts down 24 minutes with a shrinking red disc you can read at a glance. 24 minutes is 1,440 seconds (one thousand four hundred and forty seconds). It is the length of two NBA quarters of playing time and a solid study block.

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What a 24 minute timer is good for

An NBA quarter lasts twelve minutes of game clock, so twenty-four minutes is a full half of basketball. Coaches use the length for scrimmages, and students use it as a focus block close to a classic Pomodoro.

A basketball half

Run a scrimmage of two twelve minute quarters, the NBA standard, without stopping the clock for practice purposes.

A study block

Twenty-four minutes of focused study, then a five minute break, is almost a classic Pomodoro.

Roasting a chicken breast

A boneless chicken breast roasts in about twenty to twenty-five minutes at 200°C. Check it at twenty-four.

A short run

Many beginner running plans build up to twenty to twenty-five minutes of continuous jogging.

To pace yourself, glance at the disc rather than the numbers. With the 24 minute timer running, half the colour has gone after 12 minutes, and when only a quarter is left you have 6 minutes to wrap up. Open fullscreen if the timer needs to be read across a room, and add a label so everyone knows what the 24 minutes are for.

How to use the 24 minute timer

  1. It is ready

    The dial is already set to 24 minutes. To change it, drag the disc, tap a preset or open Custom.

  2. Press Start

    Or press the Space bar. The red disc shrinks back towards 12 o’clock as the time runs down.

  3. Watch the disc

    Read the time left at a glance, or open fullscreen for a big dial that fills the screen.

  4. Time’s up

    Your alarm plays until you press Stop. Press Reset or R to run the same time again.

24 minutes in other units

24 minutes equals
Seconds1,440
Minutes24
Hours0.4
Fraction of a day1/60

Why use this timer

Why a visual timer helps

A shrinking disc turns time into something you can see. You read how much is left at a glance, without doing sums on a clock, and an invisible deadline feels less stressful when you can watch it approach. That is why visual timers are a staple in classrooms and are widely used by people with ADHD and autistic children and adults. Read our guide to using a visual timer, how it helps with ADHD time blindness, classroom transitions and autism.

Why this timer is accurate

The countdown is anchored to your device clock rather than counted in animation frames. It does not drift if you switch tabs or your screen sleeps: it keeps running in the background and still sounds the alarm on time. When you come back, the disc jumps straight to the correct position.

Frequently asked questions

There are 1,440 seconds in 24 minutes. That is 0.4 of an hour, or one thousand four hundred and forty seconds written out.

A basketball scrimmage of two NBA-length quarters, a focus block close to a Pomodoro, roasting a chicken breast or a beginner’s continuous run.

Yes. The 24 minute countdown is anchored to your device clock rather than counted frame by frame, so it stays accurate in a background tab and the alarm still fires when the 24 minutes are up.

No. The 24 minute timer runs in your browser on phone, tablet and desktop. It is free, and there is no account, app or download.

Yes. Press the fullscreen button or the F key. The dial fills the screen, so the remaining part of the 24 minutes is readable from the back of the room.

Yes, once this page has loaded. Nothing is sent over the network while the 24 minutes count down, so a dropped connection will not stop the timer.

Twelve minutes of game clock, so two quarters make twenty-four minutes. Real time is longer because the clock stops for fouls, timeouts and out-of-bounds plays.

When the 24 minutes are up the disc is empty, the screen shows Time’s up! and your alarm plays until you press Stop. It stops by itself after five minutes.

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