Sand timer
An hourglass on your screen that runs for exactly the time you choose.
Ready
Minutes : Seconds
Keep this tab open for the alarm.
An online sand timer
This sand timer works like an hourglass: the sand in the top half runs into the bottom half, and the glass is empty on top exactly when the time is up. Unlike a glass hourglass, you can pick any length from 1 second to 24 hours, pause it, and hear an optional bell at the end.
Sand timer or digital timer?
A physical sand timer is only as precise as its glass and sand, and it cannot be paused. It needs no screen or battery, though. This page gives you the same picture with exact timing.
Common sand timer lengths
For a countdown shown as a colored disc, try the visual timer; for lessons, the classroom timer.
Frequently asked questions
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How long does a sand timer run?
Glass sand timers are made for fixed times such as 1, 3, 5 or 10 minutes. This online sand timer runs for any length from 1 second to 24 hours.
Can I pause the sand timer?
Yes. Pause stops the sand, Resume lets it run again, and Reset fills the top half again.