Hourglass Timer

15:00

Space Start / PauseR ResetF FullscreenM Sound

15 Minute Sand Timer: Watch a Quarter Hour Pour Away

Fifteen Minutes of Sand•Homework & Group Work•Power-Nap Friendly•Chime When Finished

A Quarter Hour, Measured in Sand

Fifteen minutes is a natural unit for homework chunks, group activities, household chores and power naps. With a longer pour, the sand moves slowly enough to be calming, yet you can still see clear progress every minute or two.

In the classroom, project it during group work so each team can pace itself. At home, set it for a quick clean-up sprint or a short rest. The hourglass format avoids the stress of a ticking digital clock while still keeping everyone honest about the time.

How to Use the 15 Minute Sand Timer

1

The hourglass is already loaded with 15 minutes of sand — or pick another preset or type your own time in m:ss.

2

Press Start (or the Spacebar) and the grains begin pouring through the narrow neck.

3

Watch the top bulb empty and the pile in the bottom bulb grow — no clock-reading needed.

4

A chime plays when the last grain lands. Press Reset (R) to flip the glass and go again.

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Frequently Asked Questions

What is a 15 minute sand timer useful for?

It suits homework blocks, chores, group discussions, short workouts, presentations practice and power naps — anything that needs a clear, relaxed quarter-hour limit.

Can I pause the sand halfway?

Yes. Press Pause or the Spacebar to freeze the grains in place, then press Resume to continue exactly where you left off.

Is the virtual hourglass more accurate than a real one?

Yes. Physical sand glasses drift with humidity and grain size. The TimerBox hourglass is driven by the system clock, so it finishes on the exact second even if you switch tabs.

Which keyboard shortcuts work on the sand timer?

Space starts or pauses, R resets, F opens fullscreen and M mutes or unmutes the finishing chime.

Ready to Start Your 15 Minute Sand Timer?

Scroll up and press Start to begin your visual countdown immediately.