15 Minute Timer

About the 15 minute timer

Fifteen minutes is the quarter hour, which is why so much of the world is scheduled in it. A short meeting that is genuinely short. A revision block. The wait a doctor's surgery quotes. The length a slow cooker recipe means when it says rest before serving.

It is also the length that most cleaning advice settles on, because it is long enough to finish a kitchen surface or a desk and short enough that it is not a project. And it is the standard for a break in an eight hour shift in a good many places, which is worth knowing if the reason you are here is that someone said take fifteen.

Press start, and the ring drains once around over the quarter hour. Three rising notes at the end, mutable with the speaker button. The screen stays awake while it runs.

Fifteen minutes is long enough that the tab will be in the background for most of it, so the count is anchored to a wall clock deadline rather than accumulated as it goes. A hidden tab, a throttled browser or a laptop that dozed off do not change the moment it fires. The tab title carries the time left so you can find the timer among a row of tabs.

For a fifteen minute break inside a longer working pattern, the pomodoro timer will run the cycle and keep count of the rounds rather than leaving you to set this page again each time.

The quarter hour is the unit most of the world's scheduling is built on, and that is largely an accident of clock faces: a quarter is the smallest division you can read at a glance on an analogue dial, so it became the smallest unit anyone bothered to schedule. Digital clocks removed the constraint decades ago and the habit stayed, which is why meetings are still fifteen, thirty or sixty minutes rather than any of the lengths in between.

Fifteen minutes is also the length that cleaning advice keeps converging on, and it is genuinely different from ten or twenty. Ten minutes clears a surface. Fifteen finishes a room enough that it reads as done, which is the point at which the effort feels repaid. Twenty starts to feel like a chore rather than a burst. If you only ever set one timer for tidying, this is the one.

The quarter hour is the unit most of the world's scheduling is built on, and that is largely an accident of clock faces: a quarter is the smallest division you can read at a glance on an analogue dial, so it became the smallest unit anyone bothered to schedule. Digital clocks removed the constraint decades ago and the habit stayed, which is why meetings are still fifteen, thirty or sixty minutes rather than any of the lengths in between.

Fifteen minutes is also the length that cleaning advice keeps converging on, and it is genuinely different from ten or twenty. Ten minutes clears a surface. Fifteen finishes a room enough that it reads as done, which is the point at which the effort feels repaid. Twenty starts to feel like a chore rather than a burst. If you only ever set one timer for tidying, this is the one.

Other lengths

• 1 Minute Timer
• 3 Minute Timer
• 5 Minute Timer
• 10 Minute Timer
• 20 Minute Timer
• 30 Minute Timer
• 1 Hour Timer