10 Minutes timer

✓ Tested & verified Updated: How this works

10 Minutes timer

0:00

Ends at

Space starts and pauses · R resets

One thing a month worth timing

Monthly

One thing a month worth measuring or capping with a clock — a payroll trap, a nap length, a meeting that never gets added up. Two sentences and the tool.

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What is a 10 minutes timer?

The Timerdial 10 minutes timer is a full countdown already set to 10 minutes: press start and it rings, keeps the screen awake, and shows the time left in the tab title. Ten minutes is the second most-set timer after five, and it is the standard unit of a break — long enough to leave the desk and short enough to come back. It is also the classic length for a tidy-up that would otherwise take an afternoon.

In other units that is 10:00 on a clock, 10 minutes, and 0.1667 of an hour, so 6 of them fit into an hour and 144 into a day.

Because the finish is stored as an absolute clock time rather than counted in ticks, the countdown is exact after a spell in a background tab, and the alarm is booked into the audio clock the moment you press start — which is what lets it sound while the tab is frozen.

Press start, or press it after changing the length — this page is the ordinary timer with 10 minutes already in the box.

What people set 10 minutes for

a tidy-up sprint, a guided meditation, a rice absorption rest, a break between lessons, a hard-boiled egg with a margin. Ten minutes is the second most-set timer after five, and it is the standard unit of a break — long enough to leave the desk and short enough to come back. It is also the classic length for a tidy-up that would otherwise take an afternoon.

In this unit10 minutes is
Seconds%!d(float64=600)
Minutes10
Hours0.1667
On a clock10:00
Written for the box10m
Fits into an hour6 times
Fits into a day144 times

The address bar carries the length, so bookmarking this page keeps it, and adding ?auto=1 to the link starts the countdown as soon as it opens — useful on a shared screen where a click is one thing too many.

Next to it

Shorter: 9 minutes. Longer: 12 minutes.

Every length is listed on the timer by duration page. For a different kind of countdown, the countdown timer counts to a time of day instead of for a length, the kitchen timer runs several at once, and the pomodoro timer repeats work and break. To count upward instead, use the stopwatch.

Frequently asked questions

Does a ten-minute tidy-up work?

Better than people expect, because the limit is decision-making rather than effort. A timer removes the decisions — everything visible, in order, until it rings — and ten minutes is long enough to clear a room’s surfaces without becoming a project.

How many seconds is 10 minutes?

%!d(float64=600) seconds, which is 10:00 on a clock and 10 minutes as a decimal. The timer accepts every one of those forms in its box — 10m, %!d(float64=600), 10:00 — and they all set the same countdown.

Will a 10 minutes timer still ring if I switch tabs?

Yes. The alarm is scheduled into the audio clock at the moment you press start, so it sounds at the right time even if the tab has been frozen in the background since — unlike a page that only tries to make a sound once the time is up, by which point a throttled tab has already missed it. The remaining time is also written into the tab title and drawn into the tab icon, so you can read it without switching back.

How this works

Pressing start stores the clock time the countdown is due to finish and books the alarm tone onto the audio clock in the same operation. Every redraw subtracts the current time from that finish time, so nothing accumulates and a throttled or frozen tab cannot fall behind; the same subtraction is what fills the ring and the tab icon. The tone is a short sine burst generated in the page rather than an audio file, faded in over a few milliseconds so it cannot click, and scheduled rather than triggered — which is why it sounds even when the tab has been in the background. A screen wake lock is held while the countdown runs and released when it stops or finishes. Notification permission is requested only once a timer is actually running.

Sources:

Reading a 10 minutes countdown

It is the same engine as every timer here. Absolute finish time, scheduled alarm, screen held awake — the only difference is that 10 minutes is already in the box.

The tab title carries it. So this page does not have to be the one you are looking at.

Nothing is stored. The length lives in the address bar, which is what makes a bookmark work.