A calm, visual countdown: the sand in this animated hourglass drains in exactly the time you choose. Flip it over at any moment just like a real one, pick a sand color, and get a soft chime when the last grain falls.
Last updated:
5:00
Set a time and press Start.
Quick times
Sand color
Shortcuts: Space start / pause · F flip · R reset. Flipping part-way works like a real hourglass: the sand that already fell becomes the new time.
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How to use the Hourglass Timer
Pick a quick time such as 1, 3 or 5 minutes, or type hours, minutes and seconds.
Choose a sand color and whether the digital time is shown under the glass.
Press Start (or Space) and the sand begins to fall; the top bulb empties exactly when the time is up.
Press Flip (or F) to turn the hourglass over. Part-way through, it restarts with the amount of sand that had already fallen, like a real sand timer.
Listen for the chime, then flip again to repeat the same time or Reset to change it.
Ways to use a sand timer
Time
Typical use
30 seconds – 1 minute
Turn-taking in board games, quick-fire classroom answers, a short breathing break
2 minutes
Tooth brushing (the time dentists commonly recommend), plank or stretch holds
3 minutes
Soft-boiled eggs, steeping black tea, short timed writing prompts
5 minutes
Tidy-up time, transition warnings for children, a quick quiz
10 – 15 minutes
Independent reading, focused study sprints, group work stations
30 – 60 minutes
Homework blocks, screen-time limits, longer meditation or rest
Why a visual hourglass helps
Numbers on a clock are abstract, especially for young children and people who find time hard to judge. An hourglass shows time as a quantity: half the sand on top means half the time is left. Watching the pile grow and the top empty gives a gentle sense of progress without the stress of a ticking second hand, which is why sand timers are popular for classroom transitions, games and mindfulness exercises.
The animation here draws a realistic glass shape and moves the sand according to how much area of each bulb should be filled, so the level of sand stays proportional to the time remaining even though the bulbs are curved. When the time is up the top bulb is completely empty.
Tips
Project it in class: use Fullscreen and hide the digital time so students focus on the sand.
Take turns: press Flip (or F) as each player's turn starts. If a turn ends early, flipping gives the next player only the time that already ran out, just like a real game timer.
Match the color to the activity: calm blue or lavender for quiet time, coral or gold for energetic tasks.
Frequently asked questions
How accurate is this hourglass timer?
Much more accurate than a real one. The sand level is calculated from your device clock on every frame, so a 5-minute hourglass empties at 5:00 to within a fraction of a second. Real sand timers often vary by several seconds because of grain size, humidity and how the neck was made.
What happens if I flip the hourglass halfway?
It behaves like a physical sand timer: the sand that has already fallen ends up on top. If you flip a 10-minute hourglass after 3 minutes, it will run for 3 minutes. Flipping when it is finished starts the full time again.
Can I hide the numbers?
Yes. Untick Show digital time and only the hourglass is visible. Many teachers and parents prefer this for young children, who understand the shrinking pile of sand better than digits.
Why is the top of the sand curved?
In a real hourglass the sand drains through the center first, so a small funnel-shaped dip forms on top while the falling sand builds a cone at the bottom. The animation imitates both shapes, but the time comes from the clock, not from a physics simulation.
Does it keep running if I switch tabs or lock my phone?
The timer keeps correct time because it is based on the clock, and the sand jumps to the right level when you come back. Browsers may silence sounds in background tabs or on a locked screen, so keep the page open and use Keep screen awake if you need the chime.
What are common sand timer lengths?
Sand timers are often sold in 1, 3, 5, 10, 15 and 30 minute sizes. 3-minute timers are traditional for boiling eggs and brushing teeth is usually timed at 2 minutes. You can set any length here, up to almost 24 hours.
Are all the tools on FreeToolCabin tested for quality and accuracy?
Yes! Every tool on our site undergoes automated Q/A testing in real browser environments to ensure high precision, correct output, and zero errors. If you happen to spot a bug or have a suggestion, please contact us at [email protected] and our team will review it right away.