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Sandglass is a free web tool that turns your date of birth and your daily habits into a clear picture of your time: how much you have lived, how much is left on average, and how it is split up.

Why it exists

We all talk about time as something we "don't have", yet we rarely measure it. Sandglass was created to make that limited resource visible with an hourglass, simple charts and curious facts, without drama and without claiming to tell you how long you will live.

What you will find

• An interactive map to choose your region and its indicative life expectancy.
• A calculation of your time lived and remaining in months, weeks and days.
• A breakdown of your time between sleep, work, phone and other activities.
• A "Wrapped" with curious facts and a downloadable card.
• Four complementary calculators: exact age, your life in weeks, sleep and screen time.
• A section of articles that explain the concepts in more detail.

Our principles

• Privacy first: calculations run in your browser and your personal data never leaves your device.
• No accounts or sign-up: you open the site and use it.
• Transparency: we explain how we calculate everything in the article How Sandglass calculates your time and we point out its limits.
• Reflection, not prediction: the figures are indicative averages and have no medical value.

How it is funded

Sandglass is free. To cover running costs it may show third-party advertising, such as Google AdSense, always labelled as such and kept separate from the content. Details about cookies and advertising are in the privacy policy.

Editorial policy

Sandglass texts are written with the help of artificial intelligence tools. Each article mentions the kind of sources it relies on, avoids giving medical advice and states the scope of its figures. We correct the errors that are reported to us or that we find, we update the pages when reference data changes, and we show the update date on every article.

The calculators on this site do not use artificial intelligence: they apply arithmetic formulas that are explained on each page so that anyone can check them.

Data and sources

Regional life expectancies are rounded values based on public statistics from international bodies such as the United Nations, the WHO and the World Bank. We review the content periodically, and if you spot an error or want to suggest an improvement, write to us from the contact page.