55 Minute Timer

Press Start to count down 55 minutes.

This free 55 minute timer counts down 55 minutes with a shrinking red disc you can read at a glance. 55 minutes is 3,300 seconds (three thousand three hundred seconds). It fits a lecture or an extended work block that ends just before the hour.

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What a 55 minute timer is good for

Fifty-five minutes is a smart choice for anything booked as an hour. Meetings that end five minutes early give people time to get to the next one, an idea some large companies now build into their calendar defaults.

A speedy meeting

Calendar apps such as Google Calendar offer “speedy meetings” that end five minutes early. Run the timer so the meeting really does.

A lecture

Some universities run fifty-five minute teaching slots between the hour.

An extended work block

Fifty-five minutes of focus with a five minute break fits neatly into each hour of the day.

Slow-baked salmon

A whole side of salmon baked at a low temperature can take close to an hour.

To pace yourself, glance at the disc rather than the numbers. With the 55 minute timer running, half the colour has gone after 27 minutes 30 seconds, and when only a quarter is left you have 13 minutes 45 seconds to wrap up. Open fullscreen if the timer needs to be read across a room, and add a label so everyone knows what the 55 minutes are for.

How to use the 55 minute timer

  1. It is ready

    The dial is already set to 55 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.

55 minutes in other units

55 minutes equals
Seconds3,300
Minutes55
Hours0.9167
Fraction of a day11/288

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 3,300 seconds in 55 minutes. That is 0.9167 of an hour, or three thousand three hundred seconds written out.

Ending an hour-long meeting five minutes early, a fifty-five minute lecture slot, an extended work block with a short break each hour, or slow-baking fish.

Yes. The 55 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 55 minutes are up.

No. The 55 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 55 minutes is readable from the back of the room.

Yes, once this page has loaded. Nothing is sent over the network while the 55 minutes count down, so a dropped connection will not stop the timer.

Some schools use fifty-five minute periods, especially where the day has fewer, longer lessons. It leaves five minutes each hour for moving between classes.

When the 55 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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