Blog
Articles about time and life
Short guides and clearly explained data to better understand how we use our time.
Life expectancy by world region
What life expectancy really means, why it varies so much between regions and how to interpret it without falling into common mistakes.
How many weeks of life do we have
An 80-year life is about 4,160 weeks. We work out the weeks, days and hours of a lifetime and what we can do with that perspective.
How much of your life do you spend sleeping
Sleeping takes up about a third of life. We calculate how many years we spend asleep depending on hours of sleep and why it is not wasted time.
Where your time goes
Work, phone, sleep and daily chores: how to turn the hours of each day into years of life, with examples and tips to win time back.
How Sandglass calculates your time
We explain step by step how Sandglass calculates your time lived and remaining, what data it uses, its limits and why everything happens in your browser.