Hourglass Timer

30:00

Space Start / PauseR ResetF FullscreenM Sound

30 Minute Sand Timer for Study, Exercise and Cooking

Half an Hour of Sand•Study & Exam Practice•Slow, Soothing Pour•Accurate Background Timing

Half an Hour in a Single Glass

Real thirty-minute hourglasses are large and expensive; this one fits on any screen. The grains fall slowly and steadily, giving long study sessions, workouts and baking times a calm visual rhythm instead of a stressful ticking clock.

Students use it for timed practice papers and revision blocks, cooks use it for bakes and roasts, and fitness fans use it for steady-state cardio. Leave it in fullscreen across the room and you will always know roughly how much of the half hour remains.

How to Use the 30 Minute Sand Timer

1

The hourglass is already loaded with 30 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

Are physical 30 minute hourglasses accurate?

Large sand glasses can easily drift by a minute or more. The TimerBox version is tied to your device clock, so a thirty-minute pour always lasts exactly thirty minutes.

Can I use the 30 minute hourglass for exam practice?

Yes. Set it running in fullscreen while you work through a practice section — the sand gives you a sense of pace without the pressure of watching seconds tick away.

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 30 Minute Sand Timer?

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